Universität zu Köln

Halbwachs, J. -L., Boffin, H. M. J., Le Bouquin, J. -B., Kiefer, F., Famaey, B., Salomon, J. -B., Arenou, F., Pourbaix, D., Anthonioz, F., Grellmann, R., Guieu, S., Sana, H., Guillout, P., Jorissen, A., Lebreton, Y., Mazeh, T., Tal-Or, L. and Gomez-Moran, A. Nebot (2016). Masses of the components of SB2s observed with Gaia - II. Masses derived from PIONIER interferometric observations for Gaia validation. Mon. Not. Roy. Astron. Soc., 455 (3). S. 3303 - 3312. OXFORD: OXFORD UNIV PRESS. ISSN 1365-2966

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Abstract

In anticipation of the Gaia astrometric mission, a sample of spectroscopic binaries is being observed since 2010 with the Spectrograph pour l'Observation des PHenomenes des Interieurs stellaires et des Exoplanetes (SOPHIE) spectrograph at the Haute-Provence Observatory. Our aim is to derive the orbital elements of double-lined spectroscopic binaries (SB2s) with an accuracy sufficient to finally obtain the masses of the components with relative errors as small as 1 per cent when combined with Gaia astrometric measurements. In order to validate the masses derived from Gaia, interferometric observations are obtained for three SB2s in our sample with F-K components: HIP 14157, HIP 20601 and HIP 117186. The masses of the six stellar components are derived. Due to its edge-on orientation, HIP 14157 is probably an eclipsing binary. We note that almost all the derived masses are a few per cent larger than the expectations from the standard spectral type-mass calibration and mass-luminosity relation. Our calculation also leads to accurate parallaxes for the three binaries, and the Hipparcos parallaxes are confirmed.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Halbwachs, J. -L. UNSPECIFIED UNSPECIFIED UNSPECIFIED Boffin, H. M. J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Le Bouquin, J. -B. UNSPECIFIED UNSPECIFIED UNSPECIFIED Kiefer, F. UNSPECIFIED UNSPECIFIED UNSPECIFIED Famaey, B. UNSPECIFIED UNSPECIFIED UNSPECIFIED Salomon, J. -B. UNSPECIFIED UNSPECIFIED UNSPECIFIED Arenou, F. UNSPECIFIED UNSPECIFIED UNSPECIFIED Pourbaix, D. UNSPECIFIED UNSPECIFIED UNSPECIFIED Anthonioz, F. UNSPECIFIED UNSPECIFIED UNSPECIFIED Grellmann, R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Guieu, S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Sana, H. UNSPECIFIED UNSPECIFIED UNSPECIFIED Guillout, P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Jorissen, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Lebreton, Y. UNSPECIFIED UNSPECIFIED UNSPECIFIED Mazeh, T. UNSPECIFIED UNSPECIFIED UNSPECIFIED Tal-Or, L. UNSPECIFIED UNSPECIFIED UNSPECIFIED Gomez-Moran, A. Nebot UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-287098
DOI:	10.1093/mnras/stv2497
Journal or Publication Title:	Mon. Not. Roy. Astron. Soc.
Volume:	455
Number:	3
Page Range:	S. 3303 - 3312
Date:	2016
Publisher:	OXFORD UNIV PRESS
Place of Publication:	OXFORD
ISSN:	1365-2966
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language RADIAL-VELOCITIES; STARS; BINARIES; HYADES; SPECTROGRAPH; HIPPARCOS; ORBITS; TODCOR; SAMPLE; SYSTEM Multiple languages Astronomy & Astrophysics Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/28709