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The Planet Orbiting ρ Coronae Borealis

Published online by Cambridge University Press:  12 April 2016

R. W. Noyes ,
A. R. Contos ,
S. G. Korzennik ,
P. Nisenson ,
T. M. Brown  and
S. D. Horner
R. W. Noyes
Affiliation:
Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138
A. R. Contos
Affiliation:
Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138
S. G. Korzennik
Affiliation:
Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138
P. Nisenson
Affiliation:
Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138
T. M. Brown
Affiliation:
High Altitude Observatory, Boulder, CO 80307
S. D. Horner
Affiliation:
Pennsylvania State University, University Park, PA 16802

Abstract

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Continuing precise radial velocity observations of ρ Coronae Borealis have allowed the determination of updated parameters of the 40-day orbit of its Jupiter-mass companion. This confirms the previously reported period and amplitude, and shows a small but marginally significant non-zero eccentricity. It also provides improved predictions for the times of possible transit of the companion in front of the star. The new data provide upper limits to the mass of a possible second companion to the system. The orbital parameters are discussed in the light of scenarios for the origin and migration of extra-solar giant planets.

Information

Type
Part 3. Extrasolar Planets
Information
International Astronomical Union Colloquium , Volume 170: Precise Stellar Radial Velocities , 1999 , pp. 162 - 165
Copyright
Copyright © Astronomical Society of the Pacific 1999

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