On the nature of the companion to HD 114762

Details On the nature of the companion to HD 114762 On the nature of the companion to HD 114762

Jan 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995pasp..107...22h&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 107, no. 707, p. 22-26

Astronomy and Astrophysics

Astronomy

12

Angular Velocity, Companion Stars, F Stars, Stellar Rotation, Stellar Spectra, Visible Spectrum, Astronomical Spectroscopy, Brown Dwarf Stars, Line Spectra, M Stars, Stellar Evolution

Scientific paper

The results of a recent study of coplanarity tendencies between stellar-equatorial and binary-orbital planes are applied to the low-metal F9 V star HD 114762, for which a possible substellar companion was reported by Latham et al. (1989). High-resolution spectroscopy is performed on HD 114762 in order to extract its projected rotational velocity (v sin i). This is then combined with an expected rotational velocity determined via age-scaling, providing an estimate of the star's equatorial inclination, which then combined with the results of the coplanarity study provides an approximate indication of the companion's orbital inclination. Although the formal uncertainties in this process preclude an accurate estimate of the companion's inclination, the results suggest that the inclination is low, possibly low enough to force the companion's mass above the limit for hydrogen fusion. It is thus possible the companion may be nothing more exotic than a low-mass M star, as opposed to a brown dwarf. These results add support to a similar conclusion recently obtained by Cochran et al. (1991).

Affiliated with

Also associated with

No associations

Rating

On the nature of the companion to HD 114762 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with On the nature of the companion to HD 114762, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the nature of the companion to HD 114762 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-836879