A SUB-STELLAR COMPANION AROUND THE F7 V STAR HD 8673
Journal Article
·
· Astrophysical Journal
In order to investigate the dependence of planet formation on stellar mass, we have been monitoring a sample of F-type main-sequence stars with the 2.0 m Alfred-Jensch telescope of the Thueringer Landessternwarte Tautenburg. This survey is based on high-precision radial velocity (RV) measurements using the coude echelle spectrograph and an iodine absorption cell. We present RV measurements of the F7 V star HD 8673 that show a long-term variability of 1634 days with a semi-amplitude K = 288 m s{sup -1} that can be explained most reasonably by an orbiting sub-stellar companion with a minimum mass of 14.2 M{sub Jup} in a high-eccentricity (e = 0.723) Keplerian orbit.
- OSTI ID:
- 21452869
- Journal Information:
- Astrophysical Journal, Vol. 717, Issue 1; Other Information: DOI: 10.1088/0004-637X/717/1/348; ISSN 0004-637X
- Country of Publication:
- United States
- Language:
- English
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