Exoplanets Rising

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Exoplanets Rising

Post by Lazarus on 29th March 2010, 3:09 pm

Steinn Siguršsson has a series of posts up about this conference at his blog Dynamics of Cats. First one in series here.

Talks are being put online at conference website here.
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Re: Exoplanets Rising

Post by Edasich on 29th March 2010, 3:38 pm

Maybe I'm wrong, but except for Wolzczan's planets around K giants I don't see hints of additional discoveries...
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Re: Exoplanets Rising

Post by Lazarus on 29th March 2010, 3:45 pm

There seems to be more of that kind of thing in the talks rather than the poster abstracts.
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Re: Exoplanets Rising

Post by Borislav on 29th March 2010, 4:23 pm

http://scienceblogs.com/catdynamics/2010/03/kitp_transit_overview.php#more      Ballard et al 2010 on GJ436 - less than 1.5 R_Earth, IF it transits - not known to transit

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Re: Exoplanets Rising

Post by exoplanet on 29th March 2010, 5:23 pm

Ballard et al 2010 on GJ436 - less than 1.5 R_Earth, IF it transits - not known to transit

IF it exists ... (GJ436c)

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Re: Exoplanets Rising

Post by Lazarus on 30th March 2010, 11:50 am

The relevant talk is now online - the 1.5 R_Earth is the upper limit on transiting planets around GJ 436 from the EPOXI mission. Not a claim of a planet.
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Re: Exoplanets Rising

Post by Edasich on 30th March 2010, 12:27 pm

Nothing new after all. And doesn't transit.
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Re: Exoplanets Rising

Post by Lazarus on 30th March 2010, 12:44 pm

I fundamentally disagree with your dismissal of these talks as "nothing new". Certainly some of the presentations include quite a bit of information about stuff in progress, new techniques etc.

There's more to exoplanets than just adding new entries to the catalogue.
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Re: Exoplanets Rising

Post by Lazarus on 30th March 2010, 4:06 pm

According to this entry on the Dynamics of Cats blog, the imaging and microlensing presentations had quite a bit of info on new unpublished planets. They aren't online yet though (give it a while...)

The CoRoT presentation by Magali Deleuil has some info on systems CoRoT-8, 10 and 11.

Josh Winn's presentation has some neat stuff in there: apparently some more detections of misaligned planets coming up, plus some insights into Greg Laughlin's magic powers.
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Re: Exoplanets Rising

Post by Edasich on 30th March 2010, 4:30 pm

Lazarus wrote:I fundamentally disagree with your dismissal of these talks as "nothing new". Certainly some of the presentations include quite a bit of information about stuff in progress, new techniques etc.

There's more to exoplanets than just adding new entries to the catalogue.

You're right. Sometimes I'm a bit childish when I expect more planets rather more infos about planets. Rolling Eyes

Josh Winn's presentation has some neat stuff in there: apparently some more detections of misaligned planets coming up, plus some insights into Greg Laughlin's magic powers.

This makes me ROFL.
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Re: Exoplanets Rising

Post by exoplanet on 30th March 2010, 5:40 pm

Interesting discussion on the supposed "planet desert" in Marcy“s presentation.

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Re: Exoplanets Rising

Post by Borislav on 31st March 2010, 7:20 am

Major current news:
http://online.kitp.ucsb.edu/online/exoplanets_c10/mayor/pdf/Mayor_ExoPlanetsConf_KITP.pdf
Super-Earths around M dwarfs are common >30%
http://online.kitp.ucsb.edu/online/exoplanets_c10/mayor/oh/33.jpg
http://online.kitp.ucsb.edu/online/exoplanets_c10/mayor/oh/34.jpg
eccentricities of the orbits and resonances of a small planets

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Re: Exoplanets Rising

Post by Lazarus on 31st March 2010, 12:16 pm

Definitely the microlensing presentation has several unpublished detections in there. Imaging is mostly a review of Gliese 758, Beta Pictoris, HR 8799 and Fomalhaut, including the problems of trying to find Fomalhaut again without the Hubble ACS which is no longer working.
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Re: Exoplanets Rising

Post by Borislav on 2nd April 2010, 5:42 pm

A very important discovery

http://scienceblogs.com/catdynamics/2010/03/kitp_imaging_and_microlensing.php

Preliminary high cadence observations from MOA suggest anomalous number of short duration lensing events - could be very wide planets, or free floaters. (Kamiya et al in prep).
If free-floating planets there are ~ 3 per star in the inner galaxy.
That is not implausible.




http://online.kitp.ucsb.edu/online/exoplanets_c10/gaudi/pdf/Gaudi_ExoPlanetsConf_KITP.pdf
Free Floating Planets(MOA Collaboration; Kamiyaet al., in prep.)
•2006-2007 data
•Excess of short events.
•0.68 expected, 12 found.
•Wide or Free-floating planets?
•Mass Ratio ~0.005
•~3 per star

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Re: Exoplanets Rising

Post by Borislav on 3rd April 2010, 4:35 am

Borislav wrote:
If free-floating planets there are ~ 3 per star in the inner galaxy.
That is not implausible.

If possible, the probability of detecting such planets closer Proxima Centauri WISE rises sharply.

From the mass coefficient goes that the mass of the planets about 2.5 Jupiter masses.

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Re: Exoplanets Rising

Post by Sirius_Alpha on 3rd April 2010, 4:48 am

Sol is not in the inner galaxy, the population of rogue planets may be different out here in the galactic suburbs.

A trillion or so rogue planets in the galaxy wouldn't surprise me but that mass would. I would expect many if not most of them to be low-mass planets.

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Re: Exoplanets Rising

Post by Daniel on 3rd April 2010, 11:42 am

what call my attention was this:

shock planetary discovery announcement on the dynamics of cats

http://scienceblogs.com/catdynamics/2010/04/kitp_shock_planetary_discovery.php#more

if it"s true, this will be the greatest discovery of this year
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Re: Exoplanets Rising

Post by Lazarus on 3rd April 2010, 11:56 am

er, Daniel, you did note the date that was posted right?

What's the acronym for the "French Academy for Keplerian Exoplanets"?

Or indeed the "Super Huge Interferometric Telescope"?
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Re: Exoplanets Rising

Post by Daniel on 3rd April 2010, 12:24 pm

yeah Lazarus i see... look like there is something wrong on this post...
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Re: Exoplanets Rising

Post by Daniel on 3rd April 2010, 12:32 pm

too good to be true...
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Re: Exoplanets Rising

Post by Edasich on 3rd April 2010, 3:02 pm

The most ludicrous April fool ever. As that posted by NuclearVacuum (or somebody else) 1 year ago claiming detection of an exo-moon around HD 80606 b. Laughing
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Re: Exoplanets Rising

Post by Sirius_Alpha on 3rd April 2010, 5:52 pm

I hate April fools.
At least the SuperWASP team were nice to us.

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Re: Exoplanets Rising

Post by Lazarus on 3rd April 2010, 6:17 pm

Talking of April Fools, I quite liked the arXiv paper that referred to a "Lorentz violating Chuck Norris in space, breathing aether and watching galaxies with his naked eyes"
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Re: Exoplanets Rising

Post by Edasich on 4th April 2010, 6:02 am

Chuck Norris detects exo-earths in Quasars with naked eye, didn't you know? Laughing

Let's quit here, or else this thread turns silly. Wink
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Re: Exoplanets Rising

Post by EDG on 4th April 2010, 10:26 pm

There are hints of 256Ub* (IV) absorption lines in the spectra

There's Unobtainium in them thar hills! Smile

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