The X-ray spectral properties of accretion discs in X-ray binaries. White, N. E., Stella, L., & Parmar, A. N. The Astrophysical Journal, 324:363–378, January, 1988.
The X-ray spectral properties of accretion discs in X-ray binaries [link]Paper  doi  abstract   bibtex   
Using EXOSAT observations, the spectral properties of the persistent emission from a number of X-ray burst sources, high-luminosity low-mass X-ray binaries, and galactic black hole candidates are compared with various models for X-ray emission from an accretion disk surrounding a compact object in a binary system. These models include the optically thick blackbody disk model considered by Mitsuda et al., two different disk models where the blackbody spectrum is modified by electron scattering, and a model where losses by the Comptonization of cool photons on hot electrons dominates the spectral formation. It is found that only a Comptonization model provides a good fit to all the spectra considered.
@article{whiteXraySpectralProperties1988,
	title = {The {X}-ray spectral properties of accretion discs in {X}-ray binaries},
	volume = {324},
	issn = {0004-637X},
	url = {http://adsabs.harvard.edu/abs/1988ApJ...324..363W},
	doi = {10.1086/165901},
	abstract = {Using EXOSAT observations, the spectral properties of the persistent emission from a number of X-ray burst sources, high-luminosity low-mass X-ray binaries, and galactic black hole candidates are compared with various models for X-ray emission from an accretion disk surrounding a compact object in a binary system. These models include the optically thick blackbody disk model considered by Mitsuda et al., two different disk models where the blackbody spectrum is modified by electron scattering, and a model where losses by the Comptonization of cool photons on hot electrons dominates the spectral formation. It is found that only a Comptonization model provides a good fit to all the spectra considered.},
	urldate = {2020-12-08},
	journal = {The Astrophysical Journal},
	author = {White, N. E. and Stella, L. and Parmar, A. N.},
	month = jan,
	year = {1988},
	keywords = {Accretion Disks, Black Body Radiation, Black Holes (Astronomy), Compton Effect, Emission Spectra, Molecular Clouds, Neutron Stars, Spaceborne Astronomy, Stellar Models, Stellar Spectrophotometry, X Ray Binaries, X Ray Spectra},
	pages = {363--378},
}

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