Multiple X-ray bursts and the model of a spreading layer of accreting matter over the neutron star surface
Astronomy Letters, ISSN: 1063-7737, Vol: 43, Issue: 9, Page: 583-594
2017
- 7Citations
- 9Captures
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Article Description
We report the detection of series of close type I X-ray bursts consisting of two or three events with a recurrence time much shorter than the characteristic (at the observed mean accretion rate) time of matter accumulation needed for a thermonuclear explosion to be initiated on the neutron star surface during the JEM-X/INTEGRAL observations of several X-ray bursters. We show that such series of bursts are naturally explained in the model of a spreading layer of accreting matter over the neutron star surface in the case of a sufficiently high (Ṁ ≳ 1 × 10M yr) accretion rate (corresponding to a mean luminosity L ≳ 1 × 10erg s). The existence of triple bursts requires some refinement of the model—the importance of a central ring zone is shown. In the standard model of a spreading layer no infall of matter in this zone is believed to occur.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85029652255&origin=inward; http://dx.doi.org/10.1134/s106377371709002x; http://link.springer.com/10.1134/S106377371709002X; http://link.springer.com/content/pdf/10.1134/S106377371709002X.pdf; http://link.springer.com/article/10.1134/S106377371709002X/fulltext.html; https://dx.doi.org/10.1134/s106377371709002x; https://link.springer.com/article/10.1134/S106377371709002X
Pleiades Publishing Ltd
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