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Title:
XO-5b: A Transiting Jupiter-sized Planet with a 4 Day Period
Authors:
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, C. N.; Gary, Bruce L.; García-Melendo, Enrique; Gregorio, J.; Vanmunster, T.
Affiliation:
AA(Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218), AB(Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218), AC(Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218), AD(Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218), AE(Department of Physics and Astronomy, Rice University, 6100 Main Street, MS-108, Houston, TX 77005), AF(Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218; Department of Physics and Astronomy, Johns Hopkins University, Baltimore, MD 21218), AG(Astronomy Department, Boston University, 725 Commonwealth Avenue, Boston, MA 02215), AH(Astronomy Department, Boston University, 725 Commonwealth Avenue, Boston, MA 02215), AI(Volunteer Observatory, Knoxville, TN), AJ(Vermillion Cliffs Observatory, Kanab, UT), AK(Hereford Arizona Observatory, Hereford, AZ), AL(Esteve Duran Observatory Foundation, Montseny 46, 08553 Seva, Spain), AM(Observatory Atalaia, Alcabideche, Portugal), AN(CBA Belgium Observatory, Landen, Belgium)
Publication:
The Astrophysical Journal, Volume 686, Issue 2, pp. 1331-1340 (2008). (ApJ Homepage)
Publication Date:
10/2008
Origin:
IOP
Astronomy Keywords:
galaxies: individual: NGC 2444 NGC 2445, planetary systems, stars: individual: GSC 02959--00729
DOI:
10.1086/591497
Bibliographic Code:
2008ApJ...686.1331B

Abstract

The star XO-5 (GSC 02959-00729, V = 12.1, G8 V) hosts a Jupiter-sized, Rp = 1.15 +/- 0.12 RJ, transiting extrasolar planet, XO-5b, with an orbital period of 4.2 days. The planet's mass, Mp = 1.15 +/- 0.08 MJ, and surface gravity, gp = 22 +/- 5 m s-2, are large for its orbital period compared to most other transiting planets. However, the deviation from the Mp-P relationship for XO-5b is not as large as 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).
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