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Multiwavelength Monitoring of the Be/X-ray Binary XPersei - Evidence for Multiple Disk Structures

Published online by Cambridge University Press:  12 April 2016

P. Roche
Affiliation:
Dept. of Physics & Astronomy, University of Leicester, England
A.E. Tarasov
Affiliation:
Crimean Astrophysical Observatory, Nauchny, Crimea, 334413Ukraine
V.M. Lyuty
Affiliation:
Sternberg Astronomical Institute, Universitetskiipr. 13, Moscow, Russia
J.S. Clark
Affiliation:
Astronomy Center, University of Sussex, Brighton, England
V. Larionov
Affiliation:
Astronomical Institute, St.Petersburg University, St.Petersburg, Russia

Abstract

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We present optical photometry and high resolution optical spectra of the Be star X Persei/HD 24534, the counterpart to the X-ray pulsar 4U0352+30, obtained over the past ~10 years. These spectra show a variety of behaviour, ending with the onset of a strong V/R cycle. Observations of the He 16678 line suggest several episodes of discrete disc forming. This data forms part of a major long-term multiwavelength monitoring programme (UBVRIJHKL photometry plus optical and UV spectroscopy).

Type
6. Disks
Copyright
Copyright © Astronomical Society of the Pacific 2000