Abstract
AbstractIt was pointed out by Paczyński (1987) that the X‐ray luminosity of accreting neutron stars is very sensitive to the physical properties of the accretion flow close to the innermost stable circular orbit. The X‐ray radiation is dominated by that emitted in the boundary layer, where accreted matter hits a star surface. The X‐ray luminosity of the boundary layer is proportional to the local accretion rate. In this note, we estimate a local accretion rate variations from the disk that undergoes non‐stationary axisymmetric perturbations. The perturbations are given by the poloidal‐velocity potential.We obtain a simple formula describing the modulation of the accretion rate for the particular case of global vertical disk oscillations that have been recently studied by Abramowicz et al. (2005). (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
