Search for low-mass PMS companions around X-ray selected late B stars

Details Search for low-mass PMS companions around X-ray selected late B stars Search for low-mass PMS companions around X-ray selected late B stars

2001-03-14

arxiv.org/abs/astro-ph/0103201v1

Astronomy and Astrophysics

Astrophysics

Accepted for publication in Astronomy and Astrophysics

Scientific paper

10.1051/0004-6361:20010452

We have observed 49 X-ray detected bright late B-type dwarfs to search for close low-mass pre-main sequence (PMS) companions using the European Southern Observatory's ADONIS (Adaptive Optics Near Infrared System) instrument. We announce the discovery of 21 new companions in 9 binaries, 5 triple, 4 quadruple system and 1 system consisting of five stars. The detected new companions have K magnitudes between 6.5 mag and 17.3 mag. and angular separations ranging from 0.2 and 14.1 arcsec (18-2358 AU).

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