The spectra of accretion discs in low-mass X-ray binaries | Zendy

R. R. Ross | Zendy; A. C. Fabian | Zendy

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The spectra of accretion discs in low-mass X-ray binaries

Author(s) -

R. R. Ross,

A. C. Fabian

Publication year - 1996

Publication title -

monthly notices of the royal astronomical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.058

H-Index - 383

eISSN - 1365-8711

pISSN - 0035-8711

DOI - 10.1093/mnras/281.2.637

Subject(s) - physics , astrophysics , neutron star , accretion (finance) , spectral line , radiative transfer , gravitational redshift , x ray binary , gravitation , doppler effect , astronomy , gravitational wave , optics

We present self-consistent models for the radiative transfer inShakura-Sunyaev accretion discs in bright low-mass X-ray binaries (LMXB). Ourcalculations include the full effects of incoherent Compton scattering and thevertical temperature structure within the disc, as well as the effects ofDoppler blurring and gravitational redshift. We find that the observed X-rayspectra are well fit by exponentially cutoff power-law models. The differencebetween the observed total spectrum and our calculated disc spectrum shouldreveal the spectrum of the disc/neutron star boundary layer and other emittingregions considered to be present in LMXB.Comment: 6 pages (including figures) uuencoded compressed postscript file. Submitted for publication in Monthly Notices of the Royal Astronomical Societ

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