XO-5b: A Transiting Jupiter-sized Planet With A Four Day Period
Astrophysics
2014-11-18 v1
Abstract
The star XO-5 (GSC 02959-00729, V=12.1, G8V) hosts a Jupiter-sized, Rp=1.15+/-0.12 Rjup, transiting extrasolar planet, XO-5b, with an orbital period of P=4.187732+/-0.00002 days. The planet mass (Mp=1.15+/-0.08 Mjup) and surface gravity (gp=22+/-5 m/s^2) are significantly larger than expected by empirical Mp-P and Mp-P-[Fe/H] relationships. However, the deviation from the Mp-P relationship for XO-5b is not large enough to suggest a distinct type of planet as is suggested for GJ 436b, HAT-P-2b, and XO-3b. By coincidence XO-5 overlies the extreme H I plume that emanates from the interacting galaxy pair NGC 2444/NGC 2445 (Arp 143).
Keywords
Cite
@article{arxiv.0805.2399,
title = {XO-5b: A Transiting Jupiter-sized Planet With A Four Day Period},
author = {Christopher J. Burke and P. R. McCullough and Jeff A. Valenti and Doug Long and Christopher M. Johns-Krull and P. Machalek and Kenneth A. Janes and B. Taylor and Michael L. Fleenor and Cindy N. Foote and Bruce L. Gary and Enrique Garcia-Melendo and J. Gregorio and T. Vanmunster},
journal= {arXiv preprint arXiv:0805.2399},
year = {2014}
}
Comments
10 pages, 9 Figures, Submitted to ApJ