Analysis of the [ITAL]Hipparcos[/ITAL] Measurements of υ Andromedae: A Mass Estimate of Its Outermost Known Planetary Companion
1999; IOP Publishing; Volume: 522; Issue: 2 Linguagem: Inglês
10.1086/312231
ISSN1538-4357
AutoresT. Mazeh, S. Zucker, Andrea Dalla Torre, F. van Leeuwen,
Tópico(s)Astro and Planetary Science
ResumoWe present an analysis of Hipparcos astrometric measurements of υ 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 semimajor axis of 0.6 mas. Using the Hipparcos data together with the spectroscopic elements, we found a semimajor axis of 1.4 ± 0.6 mas. This implies a mass of 10.1 Jupiter masses for that planet of υ And.
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