Spherical accretion on to compact X-ray sources with preheating - No thermal limit for the luminosity

Details Spherical accretion on to compact X-ray sources with preheating - No thermal limit for the luminosity Spherical accretion on to compact X-ray sources with preheating - No thermal limit for the luminosity

Jun 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980mnras.191..711b&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 191, June 1980, p. 711-719.

Computer Science

Numerical Analysis

37

Heating, Numerical Analysis, Stellar Luminosity, Stellar Mass Accretion, X Ray Sources, Asymptotes, Eddington Approximation, Isothermal Flow, Neutron Stars, Spheres, Stellar Temperature

Scientific paper

The numerical solutions for spherically symmetrical accretion are obtained for the case of the optically thin flow with the X-ray preheating. The asymptotics of the solutions are investigated. It is found that for any efficiencies of the energy release, including those typical for the accretion on to neutron stars, the solutions exist for any luminosity below the Eddington limit. This proves that there is no 'thermal' limit of accretion.

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