A limit on the presence of Earth-mass planets around a Sun-like star

dc.creatorAgol, Eric
dc.creatorSteffen, Jason H.
dc.date2006-10-05
dc.date.accessioned2026-07-07T11:26:08Z
dc.date.available2026-07-07T11:26:08Z
dc.descriptionWe present a combined analysis of all publicly available, visible HST observations of transits of the planet HD 209458b. We derive the times of transit, planet radius, inclination, period, and ephemeris. The transit times are then used to constrain the existence of secondary planets in the system. We show that planets near an Earth mass can be ruled out in low-order mean-motion resonance, while planets less than an Earth mass are ruled out in interior, 2:1 resonance. We also present a combined analysis of the transit times and 68 high precision radial velocity measurements of the system. These results are compared to theoretical predictions for the constraints that can be placed on secondary planets.
dc.descriptionAccepted for publication in MNRAS. 16 pages, 9 figures
dc.identifierhttps://arxiv.org/abs/astro-ph/0610159
dc.identifierhttp://arxiv.org/abs/astro-ph/0610159
dc.identifierMon.Not.Roy.Astron.Soc.374:941-948,2007
dc.identifierdoi:10.1111/j.1365-2966.2006.11213.x
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/195731
dc.subjectAstrophysics
dc.titleA limit on the presence of Earth-mass planets around a Sun-like star
dc.typetext

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