A model for bursting X-ray sources - Time-dependent accretion by magnetic neutron stars and degenerate dwarfs

Details A model for bursting X-ray sources - Time-dependent accretion by magnetic neutron stars and degenerate dwarfs A model for bursting X-ray sources - Time-dependent accretion by magnetic neutron stars and degenerate dwarfs

Oct 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977apj...217..197l&link_type=abstract

Astrophysical Journal, Part 1, vol. 217, Oct. 1, 1977, p. 197-212.

Astronomy and Astrophysics

Astronomy

74

Dwarf Stars, Magnetic Stars, Neutron Stars, Stellar Mass Accretion, Stellar Models, X Ray Stars, Bursts, Earth Magnetosphere, Gravitational Collapse, Mass Transfer, Stellar Atmospheres, Time Dependence, X Ray Astronomy

Scientific paper

Spherically symmetric accretion flow onto a strongly magnetic compact star is considered. It is shown that under certain conditions such flow is intermittent and that the resultant time-dependent X-ray emission from the stellar surface is akin to that observed in bursting X-ray sources. The stability properties of the magnetosphere of a compact star provide a natural gating mechanism that can produce burst rise times and durations which are much shorter than the time between bursts. A key feature of high-luminosity flows is the interaction of the burst radiation with the accreting matter, which determines the burst shape and the time between bursts. Four distinct types of burstlike flows are possible, depending on the luminosity and temperature of the burst radiation. In each type of flow the bursts are terminated by a different physical mechanism: compressional heating of matter at the magnetospheric boundary, Compton heating of matter at the boundary, Compton heating of matter far from the boundary, or radiation pressure.

Affiliated with

Also associated with

No associations

Rating

A model for bursting X-ray sources - Time-dependent accretion by magnetic neutron stars and degenerate dwarfs does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A model for bursting X-ray sources - Time-dependent accretion by magnetic neutron stars and degenerate dwarfs, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A model for bursting X-ray sources - Time-dependent accretion by magnetic neutron stars and degenerate dwarfs will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-745118