NLTE Spectral Analysis of Accretion Discs in Ultracompact X-ray Binaries

Details NLTE Spectral Analysis of Accretion Discs in Ultracompact X-ray Binaries NLTE Spectral Analysis of Accretion Discs in Ultracompact X-ray Binaries

Aug 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aspc..330...73n&link_type=abstract

The Astrophysics of Cataclysmic Variables and Related Objects, Proceedings of ASP Conference Vol. 330. Edited by J.-M. Hameury a

Astronomy and Astrophysics

Astrophysics

Scientific paper

We present first results of a NLTE spectral analysis of the accretion discs in the ultracompact X-ray binaries 4U 0614+091 and 4U 1626-67, performed with our accretion disc code AcDc. We show, that it is possible to give an upper limit for the abundances of hydrogen. The emission line features seen in the spectrum of 4U 1626-67 can be modeled qualitatively with irradiation of the accretion disc by the central neutron star.

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