'Glitches' in soft X-ray transients: Echoes of the main burst?

Details 'Glitches' in soft X-ray transients: Echoes of the main burst? 'Glitches' in soft X-ray transients: Echoes of the main burst?

Nov 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26a...279l..13a&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 279, no. 1, p. L13-L16

Astronomy and Astrophysics

Astronomy

41

Accretion Disks, Astronomical Models, Black Holes (Astronomy), Bursts, Echoes, X Ray Astronomy, X Ray Binaries, X Rays, Companion Stars, Luminosity, Mass Flow, Mathematical Models

Scientific paper

Several soft X-ray transients exhibit one or more intensity jumps ('glitches') that interrupt the decay of the initial 'main' burst. We interpret these glitches as due to enhanced mass flow from the companion star which is responding, essentially linearly, to heating by X-rays from the primary. The process goes on continuously, triggered by ('echoing') the initial burst. A time delay T of a few months occurs in the similarly linear flow of matter from the companion surface to the X-ray-emitting inner disk. The time scale in the inner disk is a few days. If this model is correct there is evidence that the main burst, that has been observed to decay over a time approximately less than T, is caused by a burst of mass flow from the companion.

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