Analysis of The Hipparcos Measurements of Upsilon Andromedae - A Mass Estimate of Its Outermost Known Planetary Companion

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dc.creatorMazeh, Tsevi
dc.creatorZucker, Shay
dc.creatorTorre, Andrea Dalla
dc.creatorvan Leeuwen, Floor
dc.date1999-07-13
dc.date.accessioned2026-07-07T02:32:30Z
dc.date.available2026-07-07T02:32:30Z
dc.descriptionWe present an analysis of Hipparcos astrometric measurements of Upsilon Andromedae, a nearby main-sequence star around which three planet candidates have recently been discovered by means of radial-velocity measurements. The stellar orbit associated with the outermost candidate has a period of 1269 +/- 9 days and a minimum semi-major axis of 0.6 milli-arc-sec (mas). Using the Hipparcos data together with the spectroscopic elements we found a semi-major axis of 1.4 +/- 0.6 mas. This implies a mass of 10.1 (+4.7, -4.6) Jupiter masses for that planet of Upsilon Andromedae.
dc.description9 pages, 2 figures, LaTex, aastex, accepted for publication by ApJ Letters
dc.identifierhttps://arxiv.org/abs/astro-ph/9907175
dc.identifierhttp://arxiv.org/abs/astro-ph/9907175
dc.identifierAstrophys.J. 522 (1999) L149-L151
dc.identifierdoi:10.1086/312231
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/14485
dc.subjectAstrophysics
dc.titleAnalysis of The Hipparcos Measurements of Upsilon Andromedae - A Mass Estimate of Its Outermost Known Planetary Companion
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