Gliese 436 c

No, please. Non-detections are the naughtiest things XD

I hope not

I hope venus like planet

tommi59 wrote:

I hope venus like planet

Have you crossed fingers?

Actually low-mass planets in systems which have had significant migration ought to have their compositions altered by the movement of material through the system. Presumably they would have more icy material in their makeup thanks to the migrating planet bringing it in from regions further out in the disc.

Do icy sub-Earths form very easily in such a disk?
I've always imaged planets dominated by water ice to be super-Earths... but I can't think of a good reason for this to be so*, and may just be a result of the discussion of the super-Earths to date.

*Edit: Low mass terrestrial planets should have a hard time migrating through the disk, right?

Lazarus wrote:

Actually low-mass planets in systems which have had significant migration ought to have their compositions altered by the movement of material through the system. Presumably they would have more icy material in their makeup thanks to the migrating planet bringing it in from regions further out in the disc.

Even a low-mass planet (I assume <0.5 Me or within 0.3 Me)? I mean, can supercritic ice be still retained by such a tiny planet and in such close orbit? Maybe a carbon-chondrite based world rather supercritic-icy one?
Better to speculate after (putative) announcement.

http://arxiv.org/abs/1009.0755

No planet ;P!

Quote :

we conclude that the earlier candidate transit signals resulted from correlated noise in the EPOXI and Spitzer 8 µm observations.

Of course a little harsh, but it shows once again how difficult it is to discovery a small planet.
Before that was.
http://arxiv.org/abs/1002.4707

But let's wait for the results of Kepler.

I understand correctly, that the anticipated period of the candidate was only 2.1071 days?

Borislav wrote:

I understand correctly, that the anticipated period of the candidate was only 2.1071 days?

Approximately.

Quote :

We further uncovered evidence for a 0.75 R_E transiting planet, in a orbit close to a 4:5 resonance with GJ 436 b...

The orbit would be interior to Gliese 436 b:

Quote :

Second, there is also the small possibility of an occultation of GJ 436c by GJ 436b.

Sirius_Alpha gets the Nostradamus points. Then again it is impressive to see how far the detection technology has come, what with detections of sub-Earth radius planets being possible.