Extrasolar Visions II http://solar-flux.forumandco.com/feed/? Latest topics Sun, 22 Nov 2009 15:17:19 GMT 10 Extrasolar Visions II http://i159.photobucket.com/albums/t137/CrossingStyx/Forum/Title_test5.jpg http://solar-flux.forumandco.com/feed/? Sulfur seas, lakes or rivers in Venus. http://solar-flux.forumandco.com/extrasolar-planetology-f5/sulfur-seas-lakes-or-rivers-in-venus-t412.htm Diakonov In a topic in extraterrestrial forum, I talked about the possibility of life on Venus. This time, I'll discuss the possibility of having liquid sulfur (in order to have life there, if possible on a sulfur solution). Venus has an atmosphere rich in sulfur gases and CO2. If there's so many sulfur in the air (clouds of sulfur compounds), then I guess it would be possible to have at least small lakes of sulfur in some areas. I'm guessing that because we only have radar images and such images ... Extrasolar Planetology Thu, 29 Oct 2009 19:47:57 GMT http://solar-flux.forumandco.com/extrasolar-planetology-f5/sulfur-seas-lakes-or-rivers-in-venus-t412.htm#2683 http://solar-flux.forumandco.com/extrasolar-planetology-f5/sulfur-seas-lakes-or-rivers-in-venus-t412.htm World-building Blog & Celestial Architect Spreadsheet http://solar-flux.forumandco.com/worlds-f12/world-building-blog-celestial-architect-spreadsheet-t434.htm jbjerk Hello, I've recently started a blog on the topic of world-building. The blog will follow the my process from defining a solar system to building a life-bearing planet, including geography, ocean currents, alien biomes, & weather. I'll also be linking to my sources, and providing a few tools to make things easier for others. What may be of the greatest interest is the spreadsheet i've constructed to calculate out a lot of the details based on a few variables. Once i resolve problems ... Worlds Fri, 20 Nov 2009 05:30:58 GMT http://solar-flux.forumandco.com/worlds-f12/world-building-blog-celestial-architect-spreadsheet-t434.htm#2925 http://solar-flux.forumandco.com/worlds-f12/world-building-blog-celestial-architect-spreadsheet-t434.htm a mix of Venus and Titan http://solar-flux.forumandco.com/general-questions-f11/a-mix-of-venus-and-titan-t435.htm Stalker Hi I am imagining a planet. And I have some questions (in bold) Let us imagine a planet slightly smaller than the Earth, as Venus or else smaller. Bigger than Mars, to remain geologically active. As on Venus, the water does not remain liquid, greenhouse effect accelerates. Let us imagine now that the cloud cover of ice crystals forms more quickly than on Venus, and especially let us imagine that it is more spread. She would block the sunlight and greenhouse effect goes down with time. The ... General Questions Sun, 22 Nov 2009 15:17:19 GMT http://solar-flux.forumandco.com/general-questions-f11/a-mix-of-venus-and-titan-t435.htm#2949 http://solar-flux.forumandco.com/general-questions-f11/a-mix-of-venus-and-titan-t435.htm Lithium, exoplanets and 16 Cygni http://solar-flux.forumandco.com/extrasolar-mechanics-f1/lithium-exoplanets-and-16-cygni-t433.htm Lazarus Don't think this one's been mentioned here, but it seems exoplanet host stars are lithium-poor. I've linked to systemic instead of the paper because the paper's behind the Nature paywall so I haven't read it. :-) So an obvious test would be a multiple star system where one of the stars is an exoplanet host. You'd assume that the stars should have similar compositions because they probably formed from the same nebula at roughly the same time. So let's take the 16 Cygni system which contains ... Extrasolar Mechanics Wed, 18 Nov 2009 22:19:35 GMT http://solar-flux.forumandco.com/extrasolar-mechanics-f1/lithium-exoplanets-and-16-cygni-t433.htm#2910 http://solar-flux.forumandco.com/extrasolar-mechanics-f1/lithium-exoplanets-and-16-cygni-t433.htm Color of Alien Plants http://solar-flux.forumandco.com/general-questions-f11/color-of-alien-plants-t264.htm NuclearVacuum
Is there some pattern that I am missing?]]> General Questions Thu, 19 Feb 2009 21:57:56 GMT http://solar-flux.forumandco.com/general-questions-f11/color-of-alien-plants-t264.htm#1550 http://solar-flux.forumandco.com/general-questions-f11/color-of-alien-plants-t264.htm Edasich's Work http://solar-flux.forumandco.com/worlds-f12/edasich-s-work-t337.htm Edasich I would like to share some (real) exoplanetary systems I have made with Celestia, both popular both recently discovered. Most are Hot SuperEarth planets. Nevermind about names featuring on the top; those are referred as tentative planetary names for a science fiction of my own. I'd like to share, maybe I could think about something at Celestia Motherlode in the future. Perhaps. Here for you: 1) - Corot-exo-7 b (actually I would own a Celestia addon with a 3-planets system) 2) ... Worlds Wed, 15 Jul 2009 16:36:02 GMT http://solar-flux.forumandco.com/worlds-f12/edasich-s-work-t337.htm#2001 http://solar-flux.forumandco.com/worlds-f12/edasich-s-work-t337.htm Planet around cataclysmic variable QS Virginis http://solar-flux.forumandco.com/extrasolar-news-and-discoveries-f2/planet-around-cataclysmic-variable-qs-virginis-t425.htm Edasich http://exoplanet.eu/star.php?st=QS+Vir Planet-hosting CV FTW! Discovery paper: A giant planet in orbit around a magnetic-braking hibernating cataclysmic variable Seriously, several substellar companion, even in planetary regime, have been discovered so far. I wish to provide you parameters that EPE doesn't give in exoplanet page about the host star. Qian et al. affirm parameters are almost the same found by O' Donoghue et al. (2003). Thus: d= 48 pc M1= 0.78 MSun R1= ... Extrasolar News and Discoveries Fri, 13 Nov 2009 09:30:44 GMT http://solar-flux.forumandco.com/extrasolar-news-and-discoveries-f2/planet-around-cataclysmic-variable-qs-virginis-t425.htm#2858 http://solar-flux.forumandco.com/extrasolar-news-and-discoveries-f2/planet-around-cataclysmic-variable-qs-virginis-t425.htm Planet Insolation http://solar-flux.forumandco.com/general-questions-f11/planet-insolation-t299.htm Sirius_Alpha
Also, what about an equation that takes into account the radius of the star?]]> General Questions Sun, 03 May 2009 02:27:40 GMT http://solar-flux.forumandco.com/general-questions-f11/planet-insolation-t299.htm#1753 http://solar-flux.forumandco.com/general-questions-f11/planet-insolation-t299.htm Venus & Floating Continents http://solar-flux.forumandco.com/worlds-f12/venus-floating-continents-t209.htm marasama
Sounds feasible to me especially if the floating continent is of porous or hollow.

Any thoughts?]]> Worlds Fri, 12 Dec 2008 05:28:14 GMT http://solar-flux.forumandco.com/worlds-f12/venus-floating-continents-t209.htm#1242 http://solar-flux.forumandco.com/worlds-f12/venus-floating-continents-t209.htm Super-Earths in orbits close to Jovian planets http://solar-flux.forumandco.com/extrasolar-mechanics-f1/super-earths-in-orbits-close-to-jovian-planets-t428.htm Sirius_Alpha Seems that a super-Earth can migrate toward a gas giant's orbit and be caught into a 3:2 or greater-integer resonance. This would let a terrestrial planet to orbit a star fairly close to a gas giant. Moreover, this means that the presence of a gas giant planet in or near the habitable zone does not rule out the possibility of a habitable world in the same system. Do we expect to find the Super-Earths close to the gas giants? http://arxiv.org/abs/0911.3390 Abstract wrote:We have investigated ... Extrasolar Mechanics Wed, 18 Nov 2009 03:58:35 GMT http://solar-flux.forumandco.com/extrasolar-mechanics-f1/super-earths-in-orbits-close-to-jovian-planets-t428.htm#2899 http://solar-flux.forumandco.com/extrasolar-mechanics-f1/super-earths-in-orbits-close-to-jovian-planets-t428.htm Satellite masses http://solar-flux.forumandco.com/worlds-f12/satellite-masses-t321.htm Sirius_Alpha Not very familiar with the masses of several of the solar system moons, I decided to find them out. Io -> 1.216 lunar masses Europa -> 0.653 lunar masses Ganymede -> 2.017 lunar masses. Callisto -> 1.464 lunar masses. Mimas -> 0.0005103 lunar masses. Enceladus -> 0.00147 lunar masses. Tethys -> 0.0084033 lunar masses. Dione -> 0.0149 lunar masses. Rhea -> 0.0313910 lunar masses. Titan -> 1.8308 lunar masses. Iapetus -> 0.02457 lunar masses. Miranda ... Worlds Sat, 13 Jun 2009 18:03:20 GMT http://solar-flux.forumandco.com/worlds-f12/satellite-masses-t321.htm#1910 http://solar-flux.forumandco.com/worlds-f12/satellite-masses-t321.htm CRIRES search for planets around the lowest-mass stars http://solar-flux.forumandco.com/detection-methods-and-projects-f4/crires-search-for-planets-around-the-lowest-mass-stars-t370.htm Sirius_Alpha High Precision Radial Velocity Measurements in the Infrared: A First Assessment of the RV Stability of CRIRES

A way to measure radial velocities in the infrared region of the spectrum is important for finding planets around M-type stars and brown dwarfs.]]> Detection Methods and Projects Wed, 10 Sep 2008 15:14:18 GMT http://solar-flux.forumandco.com/detection-methods-and-projects-f4/crires-search-for-planets-around-the-lowest-mass-stars-t370.htm#602 http://solar-flux.forumandco.com/detection-methods-and-projects-f4/crires-search-for-planets-around-the-lowest-mass-stars-t370.htm Mess new spectrograf California group - FINDS Exo-Earths or APF (RPF) ? http://solar-flux.forumandco.com/detection-methods-and-projects-f4/mess-new-spectrograf-california-group-finds-exo-earths-or-apf-rpf-t303.htm Borislav On the one hand - http://www.planetary.org/programs/projects/finds/ The Planetary Society is teaming up with planet hunters Geoff Marcy of the University of California at Berkeley and Debra Fischer of San Francisco State University to help with the quest to find other "Earths," other worlds like our own, elsewhere in our galaxy. The project is called FINDS Exo-Earths (which stands for Fiber-optic Improved Next generation Doppler Search for Exo-Earths). This new high-end ... Detection Methods and Projects Sun, 10 May 2009 21:27:37 GMT http://solar-flux.forumandco.com/detection-methods-and-projects-f4/mess-new-spectrograf-california-group-finds-exo-earths-or-apf-rpf-t303.htm#1781 http://solar-flux.forumandco.com/detection-methods-and-projects-f4/mess-new-spectrograf-california-group-finds-exo-earths-or-apf-rpf-t303.htm Study on Eps Indi Ba and Bb http://solar-flux.forumandco.com/extrasolar-planetology-f5/study-on-eps-indi-ba-and-bb-t431.htm Sirius_Alpha Epsilon Indi Ba, Bb: a detailed study of the nearest known brown dwarfs http://arxiv.org/abs/0911.3143 Abstract wrote:The discovery of epsilon Indi Ba, Bb, a binary brown dwarf system very close to the Sun, makes possible a concerted campaign to characterise the physical parameters of two T dwarfs. Recent observations suggest substellar atmospheric and evolutionary models may be inconsistent with observations, but there have been few conclusive tests to date. We therefore aim to characterise ... Extrasolar Planetology Wed, 18 Nov 2009 04:43:33 GMT http://solar-flux.forumandco.com/extrasolar-planetology-f5/study-on-eps-indi-ba-and-bb-t431.htm#2903 http://solar-flux.forumandco.com/extrasolar-planetology-f5/study-on-eps-indi-ba-and-bb-t431.htm Giant planet interiors http://solar-flux.forumandco.com/extrasolar-planetology-f5/giant-planet-interiors-t430.htm Sirius_Alpha Giant Planet Interior Structure and Thermal Evolution http://arxiv.org/abs/0911.3154 Abstract wrote:We discuss the interior structure and composition of giant planets, and how this structure changes as these planets cool and contract over time. Here we define giant planets as those that have an observable hydrogen-helium envelope, which includes Jupiter-like planets, which are predominantly H/He gas, and Neptune-like planets which are predominantly composed of elements heavier than H/He. ... Extrasolar Planetology Wed, 18 Nov 2009 04:42:31 GMT http://solar-flux.forumandco.com/extrasolar-planetology-f5/giant-planet-interiors-t430.htm#2902 http://solar-flux.forumandco.com/extrasolar-planetology-f5/giant-planet-interiors-t430.htm Are Late Heavy Bombardments rare? http://solar-flux.forumandco.com/extrasolar-mechanics-f1/are-late-heavy-bombardments-rare-t429.htm Sirius_Alpha How Common are Extrasolar, Late Heavy Bombardments? http://arxiv.org/abs/0911.3271 Abstract wrote:The habitability of planets is strongly affected by impacts from comets and asteroids. Indications from the ages of Moon rocks suggest that the inner Solar System experienced an increased rate of impacts roughly 3.8 Gya known as the Late Heavy Bombardment (LHB). Here we develop a model of how the Solar System would have appeared to a distant observer during its history based on the Nice model ... Extrasolar Mechanics Wed, 18 Nov 2009 03:59:47 GMT http://solar-flux.forumandco.com/extrasolar-mechanics-f1/are-late-heavy-bombardments-rare-t429.htm#2900 http://solar-flux.forumandco.com/extrasolar-mechanics-f1/are-late-heavy-bombardments-rare-t429.htm ThReT http://solar-flux.forumandco.com/detection-methods-and-projects-f4/thret-t427.htm Lazarus A Greek project to detect hot Jupiters. Is alternating upper- and lower-case the new trend for transit surveys? ThReT: A new survey for Extrasolar Planetary transits at Mt. Holomon, Greece First stage was producing an all-sky map of good hunting grounds for such planets: Transit detections of extrasolar planets around main-sequence stars - I. A sky map for Hot Jupiters Detection Methods and Projects Tue, 17 Nov 2009 22:20:32 GMT http://solar-flux.forumandco.com/detection-methods-and-projects-f4/thret-t427.htm#2898 http://solar-flux.forumandco.com/detection-methods-and-projects-f4/thret-t427.htm Jupiter+Saturn analogue OGLE-2006-BLG-109L http://solar-flux.forumandco.com/extrasolar-mechanics-f1/jupitersaturn-analogue-ogle-2006-blg-109l-t46.htm Lazarus Prospects for the habitability of OGLE-2006-BLG-109L

Apparently the two known jovian planets in the OGLE-2006-BLG-109L system would disrupt a habitable planet, unless the system contains yet another terrestrial-mass planet in an inner orbit.

Whether it would be possible to detect such worlds around such a dim and distant star is another matter of course...]]> Extrasolar Mechanics Thu, 03 Jul 2008 11:16:23 GMT http://solar-flux.forumandco.com/extrasolar-mechanics-f1/jupitersaturn-analogue-ogle-2006-blg-109l-t46.htm#231 http://solar-flux.forumandco.com/extrasolar-mechanics-f1/jupitersaturn-analogue-ogle-2006-blg-109l-t46.htm HD 81688 as 41 Lyncis http://solar-flux.forumandco.com/general-questions-f11/hd-81688-as-41-lyncis-t426.htm Edasich http://en.wikipedia.org/wiki/41_Lyncis The K0III-IV giant HD 81688 is listed as star 41 Lyncis. But star is not listed at SIMBAD neither elsewhere, nor as disused star designation. Got more informations? Thanks P.S If discussion is offtopic, redirect elsewhere General Questions Mon, 16 Nov 2009 12:46:25 GMT http://solar-flux.forumandco.com/general-questions-f11/hd-81688-as-41-lyncis-t426.htm#2881 http://solar-flux.forumandco.com/general-questions-f11/hd-81688-as-41-lyncis-t426.htm Kepler Channel Noise Problem http://solar-flux.forumandco.com/detection-methods-and-projects-f4/kepler-channel-noise-problem-t416.htm philw1776 Really BAD news... Kepler, NASA's mission to search for planets around other stars, will not be able to spot an Earth-sized planet until 2011, according to the mission's team. The delays are caused by noisy amplifiers in the telescope's electronics. "We're not going to be able to find Earth-size planets in the habitable zone — or it's going to be very difficult — until that work gets done," says Kepler principal investigator William Borucki. Borucki says that the noise will ... Detection Methods and Projects Sat, 31 Oct 2009 13:01:00 GMT http://solar-flux.forumandco.com/detection-methods-and-projects-f4/kepler-channel-noise-problem-t416.htm#2686 http://solar-flux.forumandco.com/detection-methods-and-projects-f4/kepler-channel-noise-problem-t416.htm Dystopia Universe - A Collab http://solar-flux.forumandco.com/worlds-f12/dystopia-universe-a-collab-t424.htm Edasich Premiss: I'm not sure if this topic may match with subforum theme. I hope so because it is about world-building, though in alternative universe, but using same notable stars we know. All the things I'm going to write here refer to a storyline a deviantArtist (nick)named "Gorgonbreath" is writing and drawing. She is developing a science fiction taking place on a post-apocalyptic Earth, dwelled by drawing swanky, coloured and eerie original characters, mostly new species (or even genera) ... Worlds Thu, 12 Nov 2009 11:08:52 GMT http://solar-flux.forumandco.com/worlds-f12/dystopia-universe-a-collab-t424.htm#2857 http://solar-flux.forumandco.com/worlds-f12/dystopia-universe-a-collab-t424.htm Secondary eclipse of HAT-P-1 from Spitzer http://solar-flux.forumandco.com/extrasolar-planetology-f5/secondary-eclipse-of-hat-p-1-from-spitzer-t423.htm Sirius_Alpha Spitzer IRAC Secondary Eclipse Photometry of the Transiting Extrasolar Planet HAT-P-1b http://arxiv.org/abs/0911.2218 Abstract wrote:We report Spitzer/IRAC photometry of the transiting giant exoplanet HAT-P-1b during its secondary eclipse. This planet lies near the postulated boundary between the pM and pL-class of hot Jupiters, and is important as a test of models for temperature inversions in hot Jupiter atmospheres. We derive eclipse depths for HAT-P-1b, in units of the stellar flux, that ... Extrasolar Planetology Thu, 12 Nov 2009 02:16:38 GMT http://solar-flux.forumandco.com/extrasolar-planetology-f5/secondary-eclipse-of-hat-p-1-from-spitzer-t423.htm#2856 http://solar-flux.forumandco.com/extrasolar-planetology-f5/secondary-eclipse-of-hat-p-1-from-spitzer-t423.htm HD 202206: Dynamical constraints on orbits http://solar-flux.forumandco.com/extrasolar-mechanics-f1/hd-202206-dynamical-constraints-on-orbits-t421.htm Sirius_Alpha Dynamical stability analysis of the HD202206 system and constraints to the planetary orbits http://arxiv.org/abs/0911.1963 Abstract wrote:Long-term precise Doppler measurements with the CORALIE spectrograph revealed the presence of two massive companions to the solar-type star HD202206. Although the three-body fit of the system is unstable, it was shown that a 5:1 mean motion resonance exists close to the best fit, where the system is stable. We present here an extensive dynamical study ... Extrasolar Mechanics Wed, 11 Nov 2009 02:14:24 GMT http://solar-flux.forumandco.com/extrasolar-mechanics-f1/hd-202206-dynamical-constraints-on-orbits-t421.htm#2850 http://solar-flux.forumandco.com/extrasolar-mechanics-f1/hd-202206-dynamical-constraints-on-orbits-t421.htm Composition of Titan's lakes http://solar-flux.forumandco.com/news-and-discoveries-f6/composition-of-titan-s-lakes-t422.htm Sirius_Alpha An estimate of the chemical composition of Titan's lakes http://arxiv.org/abs/0911.1860 Abstract wrote:Hundreds of radar-dark patches interpreted as lakes have been discovered in the north and south polar regions of Titan. We have estimated the composition of these lakes by using the direct abundance measurements from the Gas Chromatograph Mass Spectrometer (GCMS) aboard the Huygens probe and recent photochemical models based on the vertical temperature profile derived by the Huygens Atmospheric ... News and Discoveries Wed, 11 Nov 2009 02:15:36 GMT http://solar-flux.forumandco.com/news-and-discoveries-f6/composition-of-titan-s-lakes-t422.htm#2851 http://solar-flux.forumandco.com/news-and-discoveries-f6/composition-of-titan-s-lakes-t422.htm Stalker's work http://solar-flux.forumandco.com/worlds-f12/stalker-s-work-t354.htm Stalker Software: photoshop CoRoT-7b Habitable planet MOA-192 b Hot super-earth (like 55 cnc e) Ocean planet around M star Rocky planet Another hot super erth Worlds Tue, 11 Aug 2009 13:54:29 GMT http://solar-flux.forumandco.com/worlds-f12/stalker-s-work-t354.htm#2190 http://solar-flux.forumandco.com/worlds-f12/stalker-s-work-t354.htm Substellar companion(s?) to Gliese 758 http://solar-flux.forumandco.com/extrasolar-news-and-discoveries-f2/substellar-companions-to-gliese-758-t420.htm Sirius_Alpha Discovery of the Coldest Imaged Companion of a Sun-Like Star http://arxiv.org/abs/0911.1127 Abstract wrote:We present the discovery of a brown dwarf or possible planet at a projected separation of 1.9" = 29 AU around the star GJ 758, placing it between the separations at which substellar companions are expected to form by core accretion (~5 AU) or direct gravitational collapse (typically >100 AU). The object was detected by direct imaging of its thermal glow with Subaru/HiCIAO. At ... Extrasolar News and Discoveries Mon, 09 Nov 2009 07:44:08 GMT http://solar-flux.forumandco.com/extrasolar-news-and-discoveries-f2/substellar-companions-to-gliese-758-t420.htm#2841 http://solar-flux.forumandco.com/extrasolar-news-and-discoveries-f2/substellar-companions-to-gliese-758-t420.htm Planet around WD+dM binary NN Serpentis? http://solar-flux.forumandco.com/extrasolar-news-and-discoveries-f2/planet-around-wddm-binary-nn-serpentis-t415.htm Edasich
http://exoplanet.eu/star.php?st=NN+Ser

Typo shows period of 7.56 days rather 7.56 years.]]> Extrasolar News and Discoveries Tue, 03 Nov 2009 09:00:56 GMT http://solar-flux.forumandco.com/extrasolar-news-and-discoveries-f2/planet-around-wddm-binary-nn-serpentis-t415.htm#2716 http://solar-flux.forumandco.com/extrasolar-news-and-discoveries-f2/planet-around-wddm-binary-nn-serpentis-t415.htm Kepler Results http://solar-flux.forumandco.com/extrasolar-news-and-discoveries-f2/kepler-results-t282.htm Sirius_Alpha Edit: Even though results from Kepler will take a while to come out (for understandable reasons), I feel it's time to make a thread about Kepler results. If nothing else because the Kepler preparation thread isn't covering the spacecraft's preparation anymore... the thing is launched, in space now, and in commissioning. As such, I've moved the post that started with Kepler's "first light" (even though the dust cover is still on for now) and the post after that to this new thread. Now ... Extrasolar News and Discoveries Thu, 26 Mar 2009 16:44:39 GMT http://solar-flux.forumandco.com/extrasolar-news-and-discoveries-f2/kepler-results-t282.htm#1652 http://solar-flux.forumandco.com/extrasolar-news-and-discoveries-f2/kepler-results-t282.htm Planets around Miras from 2009? http://solar-flux.forumandco.com/extrasolar-news-and-discoveries-f2/planets-around-miras-from-2009-t419.htm Edasich Neglected news Precessing planetary magnetospheres in SiO stars ? First detection of quasi-periodic polarization fluctuations in R Leo and V Cam The origin of magnetism around AGB stars is uncertain. If these stars drive a dynamo, it cannot be sufficient to generate a strong global field, otherwise the observed X-ray luminosities would be higher. Other explanations for the circular polarization of SiO masers in the atmospheres are needed. The interaction of the AGB wind with previously ... Extrasolar News and Discoveries Fri, 06 Nov 2009 11:24:02 GMT http://solar-flux.forumandco.com/extrasolar-news-and-discoveries-f2/planets-around-miras-from-2009-t419.htm#2809 http://solar-flux.forumandco.com/extrasolar-news-and-discoveries-f2/planets-around-miras-from-2009-t419.htm Planet around Gamma-1 Leonis http://solar-flux.forumandco.com/extrasolar-news-and-discoveries-f2/planet-around-gamma-1-leonis-t418.htm Lazarus Detection of a Planetary Companion around the giant star γ1 Leo

Gamma-1 Leonis is part of the binary system ADS 7724.]]> Extrasolar News and Discoveries Fri, 06 Nov 2009 08:17:11 GMT http://solar-flux.forumandco.com/extrasolar-news-and-discoveries-f2/planet-around-gamma-1-leonis-t418.htm#2806 http://solar-flux.forumandco.com/extrasolar-news-and-discoveries-f2/planet-around-gamma-1-leonis-t418.htm NuclearVacuum's work http://solar-flux.forumandco.com/worlds-f12/nuclearvacuum-s-work-t183.htm NuclearVacuum NuclearVacuum wrote: Here is some of my planetary work Iota Horologii b If anybody remembers me from my time on EVI, then you will know that I was a big fan of the "Sulfur Giant" planet from John's work. So obviously, I would be a hipictate if I didn't make the prototype planet of this class (Iota Horologii b/HR 810 b) look like one. I have given the planet the name Chronos (father time), and a set of Saturn rings. Horizon of Gliese 581 c I was into other ... Worlds Wed, 26 Nov 2008 17:25:02 GMT http://solar-flux.forumandco.com/worlds-f12/nuclearvacuum-s-work-t183.htm#1129 http://solar-flux.forumandco.com/worlds-f12/nuclearvacuum-s-work-t183.htm Multiplanet system imaged at HR 8799 http://solar-flux.forumandco.com/extrasolar-news-and-discoveries-f2/multiplanet-system-imaged-at-hr-8799-t169.htm Lazarus
(Unfortunately it's probably still embargoed too, until later today it looks like)]]> Extrasolar News and Discoveries Thu, 13 Nov 2008 10:41:53 GMT http://solar-flux.forumandco.com/extrasolar-news-and-discoveries-f2/multiplanet-system-imaged-at-hr-8799-t169.htm#954 http://solar-flux.forumandco.com/extrasolar-news-and-discoveries-f2/multiplanet-system-imaged-at-hr-8799-t169.htm Another pulsar with strange companion in NGC 6440 http://solar-flux.forumandco.com/extrasolar-news-and-discoveries-f2/another-pulsar-with-strange-companion-in-ngc-6440-t417.htm Edasich SWIFT J1756.9-2508, a challenger appears... Discovery of a 205.89 Hz accreting-millisecond X-ray pulsar in the globular cluster NGC 6440 We report the discovery of the second accreting millisecond X-ray pulsar (AMXP) in the globularcluster NGC 6440. Pulsations with a frequency of 205.89 Hz were detected with the Rossi X-RayTiming Explorer on August 30th and October 1st, 2009, during the decay of . 4 days outburst of anewly X-ray transient source in NGC 6440. By studying the Doppler shift ... Extrasolar News and Discoveries Wed, 04 Nov 2009 09:28:06 GMT http://solar-flux.forumandco.com/extrasolar-news-and-discoveries-f2/another-pulsar-with-strange-companion-in-ngc-6440-t417.htm#2773 http://solar-flux.forumandco.com/extrasolar-news-and-discoveries-f2/another-pulsar-with-strange-companion-in-ngc-6440-t417.htm CoRoT Results http://solar-flux.forumandco.com/extrasolar-news-and-discoveries-f2/corot-results-t9.htm Sirius_Alpha This thread will be dedicated to the CoRoT (Convection, Rotation, and planetary Transits) spacecraft, the first spacecraft launch with the ability to seriously look for planets, (as opposed to Hubble which found the SWEEPS candidates, but Hubble isn't quite the most reliable tool for finding exoplanets). A similar thread will be made for Kepler in the future. In May of 2007, the first planet, CoRoT-Exo-1b was announced, and in December of 2007, the second planet was announced. In May of 2008, ... Extrasolar News and Discoveries Thu, 22 May 2008 22:02:59 GMT http://solar-flux.forumandco.com/extrasolar-news-and-discoveries-f2/corot-results-t9.htm#11 http://solar-flux.forumandco.com/extrasolar-news-and-discoveries-f2/corot-results-t9.htm Possible ecologies in the Jovian atmosphere http://solar-flux.forumandco.com/extrasolar-life-f7/possible-ecologies-in-the-jovian-atmosphere-t414.htm Edasich
Particles, environments and possible ecologies in the Jovian atmosphere]]> Extrasolar Life Mon, 02 Nov 2009 17:01:53 GMT http://solar-flux.forumandco.com/extrasolar-life-f7/possible-ecologies-in-the-jovian-atmosphere-t414.htm#2708 http://solar-flux.forumandco.com/extrasolar-life-f7/possible-ecologies-in-the-jovian-atmosphere-t414.htm Beta pictoris sytem http://solar-flux.forumandco.com/general-questions-f11/beta-pictoris-sytem-t413.htm Stalker Hi I try to make articles on Beta Pictoris, its planets and its discs of material, but it is not easy thing. Indeed I found a lot of very blended information, and I really do not know how to sort out. No information really contradicts other one, but there is so much that I want to ask for your opinion. What is interessant, and what is out-of-date? I make you a flowchart with what I already have succeeds in sorting out. Planet b is the imaged (end transiting?) planet Planets ... General Questions Sun, 01 Nov 2009 17:04:15 GMT http://solar-flux.forumandco.com/general-questions-f11/beta-pictoris-sytem-t413.htm#2702 http://solar-flux.forumandco.com/general-questions-f11/beta-pictoris-sytem-t413.htm HD 45364: forming a 3:2 resonant system http://solar-flux.forumandco.com/extrasolar-mechanics-f1/hd-45364-forming-a-32-resonant-system-t411.htm Lazarus The Dynamical Origin of the Multi-Planetary System HD45364

Considering the formation of the system and avoiding the capture into a 2:1 resonance, it is predicted that the eccentricities of the two planets around HD 45364 have significantly lower eccentricities than the previously-published orbits. Give it a few years for the orbits to evolve, and this can be tested.]]> Extrasolar Mechanics Wed, 28 Oct 2009 17:56:26 GMT http://solar-flux.forumandco.com/extrasolar-mechanics-f1/hd-45364-forming-a-32-resonant-system-t411.htm#2681 http://solar-flux.forumandco.com/extrasolar-mechanics-f1/hd-45364-forming-a-32-resonant-system-t411.htm ESPRESSO http://solar-flux.forumandco.com/detection-methods-and-projects-f4/espresso-t410.htm Borislav http://espresso.astro.up.pt/science.php?show=chapter5 5.1 Distribution of GTO time among science cases The Consortium has agreed to conduct the different GTO programs as a common effort, with the following distribution of GTO time among science cases: 80% for low-mass extrasolar planets 10% for fundamental constants 10% for other, high-quality science to be determined at a later stage of the project In the following sections it is assumed that the Consortium will receive ... Detection Methods and Projects Wed, 28 Oct 2009 11:04:21 GMT http://solar-flux.forumandco.com/detection-methods-and-projects-f4/espresso-t410.htm#2674 http://solar-flux.forumandco.com/detection-methods-and-projects-f4/espresso-t410.htm Amateur Finds http://solar-flux.forumandco.com/worlds-f12/amateur-finds-t408.htm Edasich Premiss: the things I'm going to type here SHOULD NOT break any embargo breach since paper has been published and submitted at ArXiv.org too. Moreover they also should not have a scientific significance since based on few data available and most of results come from approximations. Nevertheless what's come out sounds interesting. Do you remember the paper A Dedicated M Dwarf Planet Search Using The Hobby-Eberly Telescope? The paper talks about detection efficiency of low mass exoplanets ... Worlds Wed, 21 Oct 2009 09:23:32 GMT http://solar-flux.forumandco.com/worlds-f12/amateur-finds-t408.htm#2631 http://solar-flux.forumandco.com/worlds-f12/amateur-finds-t408.htm Circumbinary planets by RV http://solar-flux.forumandco.com/detection-methods-and-projects-f4/circumbinary-planets-by-rv-t377.htm Lazarus Don't think this one got posted here... Title: The Radial Velocity TATOOINE Search for Circumbinary Planets: Planet Detection Limits for a Sample of Double-lined Binary Stars - Initial Results from Keck I/Hires, Shane/CAT/Hamspec and TNG/Sarg Observations No planets detected, but two things are impressive here: one, that radial velocity measurements of SB2 spectroscopic binaries can be made sufficiently accurately to detect circumbinary planets, two, that it is possible to come up with ... Detection Methods and Projects Tue, 08 Sep 2009 19:37:59 GMT http://solar-flux.forumandco.com/detection-methods-and-projects-f4/circumbinary-planets-by-rv-t377.htm#2397 http://solar-flux.forumandco.com/detection-methods-and-projects-f4/circumbinary-planets-by-rv-t377.htm Significant exoplanet finding announcement on Monday http://solar-flux.forumandco.com/extrasolar-news-and-discoveries-f2/significant-exoplanet-finding-announcement-on-monday-t405.htm Lazarus ESO to hold media conference to discuss significant exoplanet finding On Monday 19 October 2009, astronomers will report at the international ESO/CAUP exoplanet conference in Porto, Portugal, on a significant discovery in the field of exoplanets, obtained with the High Accuracy Radial Velocity Planet Searcher, better known as HARPS, the spectrograph for ESO's 3.6-metre telescope. Interestingly enough the SpaceRef version of this has a link to the arXiv paper about the discovery of Gliese ... Extrasolar News and Discoveries Sat, 17 Oct 2009 12:13:58 GMT http://solar-flux.forumandco.com/extrasolar-news-and-discoveries-f2/significant-exoplanet-finding-announcement-on-monday-t405.htm#2573 http://solar-flux.forumandco.com/extrasolar-news-and-discoveries-f2/significant-exoplanet-finding-announcement-on-monday-t405.htm Congratulations to NuclearVacuum http://solar-flux.forumandco.com/worlds-f12/congratulations-to-nuclearvacuum-t409.htm Lazarus
Naming the extrasolar planets

I have to say I prefer NV's multi-cultural scheme to the continued promotion of European-centric Latin/classical Greek names favoured by the paper's author though.]]> Worlds Thu, 22 Oct 2009 07:30:23 GMT http://solar-flux.forumandco.com/worlds-f12/congratulations-to-nuclearvacuum-t409.htm#2644 http://solar-flux.forumandco.com/worlds-f12/congratulations-to-nuclearvacuum-t409.htm Complex life on Europa? http://solar-flux.forumandco.com/news-and-discoveries-f6/complex-life-on-europa-t402.htm Giangore New study suggests that the Jupiter's satellite Europa Could contain in its ocean an elevated concentration of oxigen, that could allow the presence of complex multicelluler life... see the article here http://www.universetoday.com/2009/10/08/europa-capable-of-supporting-life-scientist-says/#more-42303 Great news!! your comment please... News and Discoveries Sat, 10 Oct 2009 16:11:08 GMT http://solar-flux.forumandco.com/news-and-discoveries-f6/complex-life-on-europa-t402.htm#2557 http://solar-flux.forumandco.com/news-and-discoveries-f6/complex-life-on-europa-t402.htm Record photometric precision ground based telescopes http://solar-flux.forumandco.com/detection-methods-and-projects-f4/record-photometric-precision-ground-based-telescopes-t407.htm Borislav http://www.astro.up.pt/investigacao/conferencias/toe2009/TOE2009_Abstracts_Book.pdf Ground Based Detection of Transiting Hot Earths Christopher J. Burke1 1 Harvard CFA Extrasolar planets that transit bright stars provide the opportunity to measure highly accurate planet radii and to detect and characterize planetary atmospheres outside the solar system. Transit and radial velocity surveys continue to push the envelope toward finding smaller planets. Is it possible to take advantage of ... Detection Methods and Projects Tue, 20 Oct 2009 19:24:12 GMT http://solar-flux.forumandco.com/detection-methods-and-projects-f4/record-photometric-precision-ground-based-telescopes-t407.htm#2613 http://solar-flux.forumandco.com/detection-methods-and-projects-f4/record-photometric-precision-ground-based-telescopes-t407.htm H20, CH4, CO2 at HD 209458 b http://solar-flux.forumandco.com/extrasolar-planetology-f5/h20-ch4-co2-at-hd-209458-b-t401.htm Sirius_Alpha Water, methane, and carbon dioxide present in the dayside spectrum of the exoplanet HD 209458 b http://www.iop.org/EJ/abstract/0004-637X/704/2/1616 Abstract wrote:ABSTRACT. Using the NICMOS instrument on the Hubble Space Telescope, we have measured the dayside spectrum of HD 209458b between 1.5 and 2.5 μm. The emergent spectrum is dominated by features due to the presence of methane (CH4) and water vapor (H2O), with smaller contributions from carbon dioxide (CO2). Combining this near-infrared ... Extrasolar Planetology Wed, 07 Oct 2009 08:48:54 GMT http://solar-flux.forumandco.com/extrasolar-planetology-f5/h20-ch4-co2-at-hd-209458-b-t401.htm#2547 http://solar-flux.forumandco.com/extrasolar-planetology-f5/h20-ch4-co2-at-hd-209458-b-t401.htm GJ 667C b http://solar-flux.forumandco.com/extrasolar-news-and-discoveries-f2/gj-667c-b-t406.htm lodp
... And gone again ....

Was just short of 6 Earth masses in 7 day orbit]]> Extrasolar News and Discoveries Mon, 19 Oct 2009 08:23:49 GMT http://solar-flux.forumandco.com/extrasolar-news-and-discoveries-f2/gj-667c-b-t406.htm#2581 http://solar-flux.forumandco.com/extrasolar-news-and-discoveries-f2/gj-667c-b-t406.htm Destroying inner planets around giant stars http://solar-flux.forumandco.com/extrasolar-mechanics-f1/destroying-inner-planets-around-giant-stars-t404.htm Lazarus A possible explanation for the lack of close-in planets around intermediate-mass subgiant and giant stars? Apparently, a combination of gas drag from the enhanced stellar wind and stronger tidal effects due to increased depth of the convection zone can cause significant inward migration and perhaps engulfment, without needing to have the star expand all the way to the planet's orbit. Maybe has interesting implications for the planet population around intermediate-mass stars. The Orbital ... Extrasolar Mechanics Wed, 14 Oct 2009 21:11:48 GMT http://solar-flux.forumandco.com/extrasolar-mechanics-f1/destroying-inner-planets-around-giant-stars-t404.htm#2568 http://solar-flux.forumandco.com/extrasolar-mechanics-f1/destroying-inner-planets-around-giant-stars-t404.htm Planet at 30 Arietis B? http://solar-flux.forumandco.com/extrasolar-news-and-discoveries-f2/planet-at-30-arietis-b-t394.htm Edasich
A substellar component orbiting the F-star 30 Arietis B
E. W. Guenther, M. Hartmann, M. Esposito, A. P. Hatzes, F. Cusano, and D. Gandolfi
Accepted: 14 September 2009
DOI: 10.1051/0004-6361/200912112
PDF file (1.223 MB)


If someone has access, please notify]]> Extrasolar News and Discoveries Mon, 05 Oct 2009 08:04:52 GMT http://solar-flux.forumandco.com/extrasolar-news-and-discoveries-f2/planet-at-30-arietis-b-t394.htm#2520 http://solar-flux.forumandco.com/extrasolar-news-and-discoveries-f2/planet-at-30-arietis-b-t394.htm Characterisation of HD 114762B http://solar-flux.forumandco.com/extrasolar-news-and-discoveries-f2/characterisation-of-hd-114762b-t403.htm Lazarus The Benchmark Ultracool Subdwarf HD 114762B: A Test of Low-Metallicity Atmospheric and Evolutionary Models

HD 114762A is a low-metallicity star that was discovered to have a massive substellar companion (probably a brown dwarf) in 1989, which has at least 11 Jupiter masses. The secondary star HD 114762B has spectral type d/sdM9, a "mild subdwarf".]]> Extrasolar News and Discoveries Mon, 12 Oct 2009 17:43:16 GMT http://solar-flux.forumandco.com/extrasolar-news-and-discoveries-f2/characterisation-of-hd-114762b-t403.htm#2559 http://solar-flux.forumandco.com/extrasolar-news-and-discoveries-f2/characterisation-of-hd-114762b-t403.htm GJ 876 d IR detection (with failure to detect an atmosphere) http://solar-flux.forumandco.com/extrasolar-news-and-discoveries-f2/gj-876-d-ir-detection-with-failure-to-detect-an-atmosphere-t387.htm Sirius_Alpha On the Method to Infer an Atmosphere on a Tidally Locked Super Earth Exoplanet and Upper Limits to GJ 876d http://www.iop.org/EJ/abstract/0004-637X/703/2/1884 Abstract wrote:We develop a method to infer or rule out the presence of an atmosphere on a tidally locked hot super Earth. The question of atmosphere retention is a fundamental one, especially for planets orbiting M stars due to the star's long-duration active phase and corresponding potential for stellar-induced planetary atmospheric ... Extrasolar News and Discoveries Thu, 17 Sep 2009 07:20:23 GMT http://solar-flux.forumandco.com/extrasolar-news-and-discoveries-f2/gj-876-d-ir-detection-with-failure-to-detect-an-atmosphere-t387.htm#2477 http://solar-flux.forumandco.com/extrasolar-news-and-discoveries-f2/gj-876-d-ir-detection-with-failure-to-detect-an-atmosphere-t387.htm