Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991mont.iafcr....l&link_type=abstract
IAF, International Astronautical Congress, 42nd, Montreal, Canada, Oct. 5-11, 1991. 12 p. Research supported by Smithsonian Inst
Astronomy and Astrophysics
Astronomy
Companion Stars, Dwarf Stars, Late Stars, Radial Velocity, Stellar Oscillations, Interstellar Matter, Stellar Mass, Stellar Orbits, Velocity Measurement
Scientific paper
The status of the velocity monitoring of four late-spectral-type stars is reported which includes two dwarfs and two giants. The data presented are the results of more than 10 years of radial-velocity measurements. The single-measurement precision approaches 500 m/s for the velocity-variation measurements of HD 114762, HD 28099, HD 23712 and HD 113866. The solar-type dwarf HD 114762 demonstrates a periodic velocity variation with a semiamplitude of 568 m/s and a period of 83.9 days which can correspond to a companion with a mass of 11 Jupiters. HD 28099 and HD 23712 have velocity variations with semiamplitudes of 360 m/s and 438 m/s and periods of 5000 and 590 days, respectively. The first three stars are reported to be strong candidates for low-mass companions, whereas the velocity variations of HD 113866 are theorized to be caused by radial oscillations.
Davis Robert J.
Latham David W.
Mazeh Tsevi
Stefanik Robert
Torres Guillermo
No associations
LandOfFree
Radial-velocity searches for low-mass companions of stars 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 Radial-velocity searches for low-mass companions of stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radial-velocity searches for low-mass companions of stars will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1876641