Free access
Issue
Astron. Astrophys. Suppl. Ser.
Volume 136, Number 3, May I 1999
Page(s) 429 - 444
DOI http://dx.doi.org/10.1051/aas:1999225
DOI: 10.1051/aas:1999225

Astron. Astrophys. Suppl. Ser. 136, 429-444

A search for spectroscopic binaries among Herbig Ae/Be stars[*][*]

P. Corporon - A.-M. Lagrange

Send offprint request: P. Corporon

Laboratoire d'Astrophysique de l'Observatoire de Grenoble, BP. 53, F-38041 Grenoble Cedex, France

Received March 4; accepted November 17, 1998

Abstract:

We present the results of a spectroscopic survey of binaries among 42 bright (mV<11) Herbig Ae/Be stars in both hemispheres. Radial velocity variations were found in 7 targets, 4 are new spectroscopic binaries. The Li I 6708Å 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%.

Key words: binaries: spectroscopic -- stars: early-type -- stars: pre-Main Sequence -- stars: statistics

SIMBAD Objects
Tables at the CDS

Copyright The European Southern Observatory (ESO)

What is OpenURL?

The OpenURL standard is a protocol for transmission of metadata describing the resource that you wish to access.

An OpenURL link contains article metadata and directs it to the OpenURL server of your choice. The OpenURL server can provide access to the resource and also offer complementary services (specific search engine, export of references...). The OpenURL link can be generated by different means.

  • If your librarian has set up your subscription with an OpenURL resolver, OpenURL links appear automatically on the abstract pages.
  • You can define your own OpenURL resolver with your EDPS Account.
    In this case your choice will be given priority over that of your library.
  • You can use an add-on for your browser (Firefox or I.E.) to display OpenURL links on a page (see http://www.openly.com/openurlref/). You should disable this module if you wish to use the OpenURL server that you or your library have defined.