XO-5b: A Transiting Jupiter-sized Planet With A Four Day Period
| Autor: | Burke, Christopher J., McCullough, P. R., Valenti, Jeff A., Long, Doug, Johns-Krull, Christopher M., Machalek, P., Janes, Kenneth A., Taylor, B., Fleenor, Michael L., Foote, Cindy N., Gary, Bruce L., Garcia-Melendo, Enrique, Gregorio, J., Vanmunster, T. |
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| Rok vydání: | 2008 |
| Předmět: | |
| Zdroj: | Astrophys.J.686:1331-1340,2008 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1086/591497 |
| Popis: | 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). Comment: 10 pages, 9 Figures, Submitted to ApJ |
| Databáze: | arXiv |
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