Optical spectroscopy of Cyg X-1

Details Optical spectroscopy of Cyg X-1 Optical spectroscopy of Cyg X-1

2007-10-03

arxiv.org/abs/0710.0758v1

Astronomy and Astrophysics

Astrophysics

Proceedings of RAGtime 9: Workshops on black holes and neutron stars, S. Hledik & Z. Stuchlik eds., Silesian University in Opa

Scientific paper

The star HDE 226868 known as an optical counterpart of the black hole candidate Cyg X-1 has been observed in H_alpha region using spectrograph at Ondrejov 2-m telescope. The orbital parameters are determined from HeI-line by means of the author's method of Fourier disentangling. Preliminary results are also presented of disentangling the H_alpha-line into a P-Cyg profile of the (optical) primary and an emission profile of the circumstellar matter (and a telluric component).

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