Orbital Parameters of the Binary Companion in o and Using Spectrum Disentangling

Details Orbital Parameters of the Binary Companion in o and Using Spectrum Disentangling Orbital Parameters of the Binary Companion in o and Using Spectrum Disentangling

Apr 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005ap%26ss.296..169b&link_type=abstract

Astrophysics and Space Science, Volume 296, Issue 1-4, pp. 169-172

Astronomy and Astrophysics

Astrophysics

1

Scientific paper

o And is one of the most frequently observed Be stars, both in photometry and spectroscopy. It is a multiple system of at least four stars (a Be star, a close binary of spectral types B7 and B8, and an A star). For over a century, numerous observers report a highly variable spectrum, photometric changes, and a substantial range of radial velocity. The star has changed back and forth between a shell-type and a normal B-type star. The last emission phase started in 1992 and ended in 2000.

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