Statistics
Scientific paper
May 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999a%26as..136..429c&link_type=abstract
Astronomy and Astrophysics Supplement, v.136, p.429-444
Statistics
63
Binaries: Spectroscopic, Stars: Early-Type, Stars: Pre-Main Sequence, Stars: Statistics
Scientific paper
We present the results of a spectroscopic survey of binaries among 42 bright (m_V<11) Herbig Ae/Be stars in both hemispheres. Radial velocity variations were found in 7 targets, 4 are new spectroscopic binaries. The Li I 6 708 Angstroms absorption line (absent feature in simple HAeBe stars spectra) indicates the presence of a cooler companion in 6 HAeBe spectrum binaries, 4 of which are new detections. Few stars classified as possible Herbig Ae/Be stars are not confirmed as such. While for short-period (P<100 days) spectroscopic binaries, the observed binary frequency is 10%, the true spectroscopic binary frequency for Herbig Ae/Be stars may be as high as 35%. Based on observations collected at the European Southern Observatory (ESO), La Silla, Chile and at the Observatoire de Haute--Provence (OHP), Saint--Michel l'Observatoire, France. Table 1 only available in electronic form at CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/Abstract.html
Corporon Patrice
Lagrange Anne Marie
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