Spitzer search for super-Earth transits

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Spitzer search for super-Earth transits

Post by Lazarus on 31st October 2013, 3:17 pm

Kammer et al. "A Spitzer Search for Transits of Radial Velocity Detected Super-Earths"
http://arxiv.org/abs/1310.7952

No transit detections for HD 1461, HD 7924, HD 97658, HD 156668, HIP 57274 or GJ 876. Note that the observation window for HD 97658 was based on the erroneous earlier transit claim, so the actual transit window was missed.
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Re: Spitzer search for super-Earth transits

Post by Shellface on 31st October 2013, 4:11 pm

That's the wrong period for HD 156668 b?

I don't think that effects the results though, as a transit with the 1.27-day period should have occurred about 3/4ths of the way through the observational window.

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Re: Spitzer search for super-Earth transits

Post by Lazarus on 31st October 2013, 4:26 pm

Shellface wrote:That's the wrong period for HD 156668 b?
Depends on your position on which period is the alias, and which is the true value. See e.g. Baluev (2012) which argues that the ambiguity remains and either the period claimed in the discovery paper (Howard et al. 2011) or the revised orbital period of Dawson & Fabrycky (2010)* may be correct.

Though really, that makes it more important to consider both options...

* Always nice when the date of publication is reversed with respect to when the papers appear on the arXiv...
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Re: Spitzer search for super-Earth transits

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