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Title:
Constraints on the companion object to HD 114762
Authors:
Cochran, William D.; Hatzes, Artie P.; Hancock, Terry J.
Affiliation:
AA(McDonald Observatory; Texas, University, Austin), AB(McDonald Observatory; Texas, University, Austin), AC(McDonald Observatory; Texas, University, Austin)
Publication:
Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 380, Oct. 10, 1991, p. L35-L38. (ApJL Homepage)
Publication Date:
10/1991
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
Binary Stars, Brown Dwarf Stars, Companion Stars, Planetary Systems, Radial Velocity, Stellar Mass, Stellar Orbits
DOI:
10.1086/186167
Bibliographic Code:
1991ApJ...380L..35C

Abstract

The paper presents high-precision radial velocity observations of the candidate planetary system HD 114762. The data obtained confirm Latham et al.'s (1989) of the binary nature of the system. The new orbital solution gives an eccentricity of 0.38 compared with the Latham et al. value of 0.25, but otherwise it agrees well with the discovery orbit. The mass function for the system implies a companion object with Mc sin i(orb) = 0.011 solar mass.

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