WASP-31b: a low-density planet transiting a late-F-type star

Details WASP-31b: a low-density planet transiting a late-F-type star WASP-31b: a low-density planet transiting a late-F-type star

2010-11-25

arxiv.org/abs/1011.5882v1

Astronomy and Astrophysics

Astrophysics

Earth and Planetary Astrophysics

6 pages, 5 figures, 3 tables. Submitted to A&A

Scientific paper

We report the discovery of the low-density, transiting giant planet WASP-31b.
The planet is 0.47 Jupiter masses and 1.56 Jupiter radii. It is in a 3.4-day
orbit around a 1-Gyr-old, late-F-type, V = 11.7 star, which is a member of a
common proper motion pair. In terms of its low density, WASP-31b is second only
to WASP-17b, which is a more highly irradiated planet of similar mass.

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