Second Kepler Science Conference Nov. 4-8

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Second Kepler Science Conference Nov. 4-8

Post by Led_Zep on 24th October 2013, 1:55 pm

10/17/13 Update: With the re-opening of the US government and the lifting of furloughs, we are happy to announce that the Second Kepler Science Conference will go on as planned November 4-8 with an opening reception on Nov 3, at NASA Ames.
(Kepler team)

Abstracts :

http://nexsci.caltech.edu/conferences/KeplerII/agenda.shtml
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Re: Second Kepler Science Conference Nov. 4-8

Post by Edasich on 24th October 2013, 2:42 pm

I'd like to highlight some notable ones:
 
Hit and miss: a slightly misaligned circumbinary planet KIC12351927b
 
The Confirmation of a Third Planet in the Kepler-47 Circumbinary System
 
The high multiplicity systems Gliese 667C and KOI 3158
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Re: Second Kepler Science Conference Nov. 4-8

Post by Daniel on 24th October 2013, 3:11 pm

Group 1 & 2 poster seems very interested too:

http://nexsci.caltech.edu/conferences/KeplerII/posters.shtml


Last edited by Daniel on 25th October 2013, 9:33 am; edited 1 time in total
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Re: Second Kepler Science Conference Nov. 4-8

Post by Shellface on 24th October 2013, 6:34 pm

KOI-3158 is this star. It's the 8th brightest KOI and (after Kepler-21) the second brightest which isn't listed as a false positive. The five planets are very tightly packed, with orbital periods ranging between 3.6 and 9.7 days. It has a Fe/H between -0.3 and -0.8 dex and has a high alpha/Fe ratio, indicating it is a thick disk (~6-10 Gyr old) star. The planets are about Mars-sized. Definitely an interesting system.

Meanwhile, " Two seasons of HARPS-N follow-up of Kepler planetary candidates " is up there! Really excited to see what HARPS-N has accomplished.

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Re: Second Kepler Science Conference Nov. 4-8

Post by Led_Zep on 25th October 2013, 12:15 pm

Shellface wrote:"... Really excited to see what HARPS-N has accomplished..."

An example : http://nexsci.caltech.edu/conferences/KeplerII/abstracts_talks/Lovis.pdf
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Re: Second Kepler Science Conference Nov. 4-8

Post by Lazarus on 25th October 2013, 7:48 pm

Also some disappointing results regarding exomoons there. Earthlike habitable exomoons may indeed be quite rare.
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Re: Second Kepler Science Conference Nov. 4-8

Post by PlutonianEmpire on 25th October 2013, 8:25 pm

Any links to that exomoon one?

Edit: Found it. I did a quick calculation on that upper limit of 1.5 R_Ganymede and noted an equatorial radius of just under 4 thousand km, so a bit bigger than Mars. But yeah, probably not enough to make a difference.

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Re: Second Kepler Science Conference Nov. 4-8

Post by Led_Zep on 4th November 2013, 4:26 pm

some screenshots :



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Re: Second Kepler Science Conference Nov. 4-8

Post by Led_Zep on 4th November 2013, 6:31 pm

more :



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Re: Second Kepler Science Conference Nov. 4-8

Post by Led_Zep on 4th November 2013, 7:16 pm

Wink 
French humour... (from Marseille)




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Re: Second Kepler Science Conference Nov. 4-8

Post by Stalker on 5th November 2013, 3:34 am

After the BEER algorithm...

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Re: Second Kepler Science Conference Nov. 4-8

Post by Stalker on 5th November 2013, 12:11 pm

http://www.nasa.gov/sites/default/files/files/Kepler-ROWE-Nov4.pdf

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Re: Second Kepler Science Conference Nov. 4-8

Post by Led_Zep on 5th November 2013, 2:41 pm

http://www.space.com/23465-planet-hunting-kepler-spacecraft-future.html

K2 mission for KEPLER ?

« ..The K2 mission would likely turn up many small exoplanets around small stars, including some in the habitable zone, Howell said. It could also spot a number of alien worlds around bright stars, which would make good targets for follow-up observation by NASA's James Webb Space Telescope, an $8.8 billion instrument due to launch in 2018.
But K2 wouldn't just be about exoplanets, Howell added. Kepler could also gather data about supernova explosions, star formation and solar-system bodies such as asteroids and comets, among other things… »

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Re: Second Kepler Science Conference Nov. 4-8

Post by Led_Zep on 5th November 2013, 3:25 pm

The KOI 3158 system :

[/url]
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Re: Second Kepler Science Conference Nov. 4-8

Post by Sunchaser on 5th November 2013, 4:21 pm

I want to know more about KOI-1422 and KOI-4036!


-M-

That last one looks pretty interesting too!
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Re: Second Kepler Science Conference Nov. 4-8

Post by Shellface on 5th November 2013, 5:07 pm

Ah, that's some better information. The planets orbiting KOI-3158 range from Mercury-size (0.38 R), through Mars-size (0.53 R), and up to… Super-Mars? Sub-Earth? sized. The star's B-V of 0.806 is indeed that of a K0 star, and it is again a kinematically old dwarf. The close proximity to MMRs for all five planets indicate that they all migrated/dynamically interacted to a large extent. The upper limits on the densities of 4/e and 5/f indicate that they have atmospheres, which seems very unlikely given their small size and high irradiance; maybe precision on the (lack of) TTVs is an issue here, or maybe their compositions are just a little odd.

KOI-3158 is a Hipparcos star (HIP 94931). Any of you Celestia-types wanna take a crack at this system? Because that would be awesome. Celestia also tells me that KOI-3158 is about a dozen light-years away from Kepler-42 (KOI-961), which is a remarkable happenstance.

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Re: Second Kepler Science Conference Nov. 4-8

Post by Edasich on 5th November 2013, 5:12 pm

Accounting putative mass estimates, the planets 4 and 5 in KOI 3158 seem having Mars-like composition.
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Re: Second Kepler Science Conference Nov. 4-8

Post by PlutonianEmpire on 5th November 2013, 5:17 pm

Shellface wrote:Ah, that's some better information. The planets orbiting KOI-3158 range from Mercury-size (0.38 R), through Mars-size (0.53 R), and up to… Super-Mars? Sub-Earth? sized. The star's B-V of 0.806 is indeed that of a K0 star, and it is again a kinematically old dwarf. The close proximity to MMRs for all five planets indicate that they all migrated/dynamically interacted to a large extent. The upper limits on the densities of 4/e and 5/f indicate that they have atmospheres, which seems very unlikely given their small size and high irradiance; maybe precision on the (lack of) TTVs is an issue here, or maybe their compositions are just a little odd.

KOI-3158 is a Hipparcos star (HIP 94931). Any of you Celestia-types wanna take a crack at this system? Because that would be awesome. Celestia also tells me that KOI-3158 is about a dozen light-years away from Kepler-42 (KOI-961), which is a remarkable happenstance.
There was a guy who was doing regular updates to the extrasolar planet data files for the data folder for a long while, but he quit earlier this year, citing dead -- literally dead -- development of the program, among other issues, including diminishing return for the effort he was putting in. Sad

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Re: Second Kepler Science Conference Nov. 4-8

Post by Led_Zep on 5th November 2013, 5:32 pm

The third planet of Kepler-47 ("middle")



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Re: Second Kepler Science Conference Nov. 4-8

Post by Led_Zep on 5th November 2013, 6:02 pm

More exotic :



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Re: Second Kepler Science Conference Nov. 4-8

Post by Shellface on 5th November 2013, 6:53 pm

Edasich wrote:Accounting putative mass estimates, the planets 4 and 5 in KOI 3158 seem having Mars-like composition.
Ah, that is true; I was using Earth and Venus densities as a model. Though the values are still upper limits, if a "sensible" composition is true, then hopefully not too much more accurate data would be necessary to get a detection of TTVs (TESS? Some other really really high-precision photometer? Anybody?)

PlutonianEmpire wrote:There was a guy who was doing regular updates to the extrasolar planet data files for the data folder for a long while, but he quit earlier this year, citing dead -- literally dead -- development of the program, among other issues, including diminishing return for the effort he was putting in. Sad
That is a shame. In my ramblings of being confused by how to edit the damn program (*shakes fist*) I managed to figure out how to add planets and stars (boy, did finding out that co-ordinates needed to be translated into a degree take a while), but you folks' texture work are beyond me.


@Kepler-47 - c has a density of 0.11 g/cm3? What're you, a Hot Jupiter?!
It's also interesting how the larger planet is in the middle. It's a bit short of Saturn-sized, which is consistent with the previously discovered circumbinary giant planets and continues to support a lack of Jupiters.

@KIC yadda yadda - a "slight" mutual inclination really does that much, huh? Hope someone's ready to observe in two thousand days!

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Re: Second Kepler Science Conference Nov. 4-8

Post by Lazarus on 5th November 2013, 7:08 pm

Yeah, basically the dev community died out, several of the more active contributors left and the forum got overrun by low-quality Trekkie screenshots.

Currently the active community is at the Celestial Matters site, they're working on a fork called "Celestia.Sci". That seems to be where the high-quality Celestia-related material is these days.
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Re: Second Kepler Science Conference Nov. 4-8

Post by tommi59 on 6th November 2013, 4:22 am

Strange results for kepler 47 system c has only 2.3 earth mass? how they did imeasurement?Planet b is denser than most much smaller planets in range 2-3 earth radii despite being far outside significant mass loss zone only super earth kepler 20 c is denser but closer to host.
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Re: Second Kepler Science Conference Nov. 4-8

Post by tommi59 on 6th November 2013, 4:32 am

Strange super neptune in the middle High diversity in composition still surprise me
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Re: Second Kepler Science Conference Nov. 4-8

Post by Edasich on 6th November 2013, 10:49 am

Led_Zep wrote:More exotic :



New entry at EPE - Discovery paper submitted at ApJ:

http://exoplanet.eu/catalog/kic_12351927_(ab)_b/
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Re: Second Kepler Science Conference Nov. 4-8

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