An Eccentric Hot Jupiter Orbiting the Subgiant HD 185269

Simple item page
dc.creatorJohnson, John A.
dc.creatorMarcy, Geoffrey W.
dc.creatorFischer, Debra A.
dc.creatorHenry, Gregory W.
dc.creatorWright, Jason T.
dc.creatorIsaacson, Howard
dc.creatorMcCarthy, Chris
dc.date2006-08-01
dc.date2006-11-09
dc.date.accessioned2026-07-07T10:39:42Z
dc.date.available2026-07-07T10:39:42Z
dc.descriptionWe report the detection of a Jupiter-mass planet in a 6.838 day orbit around the 1.28 solar mass subgiant HD 185269. The eccentricity of HD 185269b (e = 0.30) is unusually large compared to other planets within 0.1 AU of their stars. Photometric observations demonstrate that the star is constant to +/-0.0001 mag on the radial velocity period, strengthening our interpretation of a planetary companion. This planet was detected as part of our radial velocity survey of evolved stars located on the subgiant branch of the H-R diagram--also known as the Hertzsprung Gap. These stars, which have masses between 1.2 and 2.5 solar masses, play an important role in the investigation of the frequency of extrasolar planets as a function of stellar mass.
dc.description18 pages, 4 figures, 3 tables, ApJ in press (scheduled for Dec 2006, v652n2)
dc.identifierhttps://arxiv.org/abs/astro-ph/0608035
dc.identifierhttp://arxiv.org/abs/astro-ph/0608035
dc.identifierAstrophys.J.652:1724-1728,2006
dc.identifierdoi:10.1086/508255
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/181118
dc.subjectAstrophysics
dc.titleAn Eccentric Hot Jupiter Orbiting the Subgiant HD 185269
dc.typetext

Files

Collections

arXiv