A search for eclipses of HD 114762 by a low-mass companion

Journal Article · Thu Feb 01 00:00:00 EST 1990 · Astronomical Journal; (USA)

DOI:https://doi.org/10.1086/115361· OSTI ID:6997518

Robinson, E L; Cochran, A L; Cochran, W D; Shafter, A W; Zhang, Erho ^[1]

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1. Texas Univ., Austin (USA) Beijing Observatory (China)

HD 114762 has an unseen companion with a dynamical mass that satisfies the constraint mass sin i = 2.5 x 10 to the 31st gm. The companion is a good candidate for a planetary-mass object, but the inclination of its orbit is unknown and its mass is indeterminate. Tests were conducted for the specific case of a nearly edge-on orbit by looking for eclipses of HD 114762 by the companion. Although the a priori probability of an eclipse is low, this is a crucial case because the companion has its minimum mass if the orbit is edge on. No eclipses were found with a depth greater than 0.01 mag and, therefore, the inclination of the orbit of HD 114762 is less than 89 deg. 12 refs.

• OSTI ID: 6997518
• Journal Information: Astronomical Journal; (USA), Vol. 99; ISSN 0004-6256
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BINARY STARS
MASS
PLANETS
IDENTIFICATION SYSTEMS
ECLIPSE
ORBITS
STARS
640102* - Astrophysics & Cosmology- Stars & Quasi-Stellar
Radio & X-Ray Sources