Abstract
The equations of stationary fluid motion are solved for the case of spherical accretion onto non-magnetic, non-rotating neutron star. The X-ray radiation flux is calculated in two different ways: An approximate solution of the moment equations coupled to the gas fluid equations and numerical Monte-Carlo simulation of the photon random walk. We show that the spectrum of the X-ray radiation in the outer parts of the inflowing envelope has a characteristic power-law behaviour. We suggest that some of the properties of the X-ray sources in the globular clusters can be explained with this model.
| Original language | English |
|---|---|
| Pages (from-to) | 473-492 |
| Number of pages | 20 |
| Journal | Astrophysics and Space Science |
| Volume | 50 |
| Issue number | 2 |
| DOIs | |
| State | Published - Aug 1977 |