| Autor: |
Stéphane Udry, J. L. Beuzit, Dominique Naef, D. Queloz, C. Perrier-Bellet, Frédéric Arenou, Michel Mayor, Jean-Pierre Sivan |
| Rok vydání: |
2004 |
| Předmět: |
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| Zdroj: |
NASA Astrophysics Data System |
| ISSN: |
0074-1809 |
| DOI: |
10.1017/s0074180900217580 |
| Popis: |
We present radial-velocity measurements for three solar-type stars (HD 127506, HD 174457 and HD 185414) hosting low-mass companions. The measurements were obtained with the ELODIE echelle spectrograph mounted on the 1.93–m telescope at Observatoire de Haute–Provence (CNRS, France) within the frame of the OHP-ELODIE Planet Search Programme. The inferred minimum masses of the detected companions are in the substellar mass range. Combining ELODIE radial-velocity data and HIPPARCOS astrometric data, the inclination angles of the orbital planes of HD 127506 and HD 174457 have been derived providing us with the de-projected masses of the companions: m2 = 44MJup for the companion of HD 127506 and m2= 0.13M⊙ for the companion of HD 174457. Moreover, using adaptive optics measurements, we show that HD 174457 is probably a (F8V + M7V + M3-4V) triple system. To date, only a minimal orbital solution is available for HD 185414. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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