Focused study of thermonuclear bursts on neutron stars

Research output: Contribution to conferencePosterResearch

Abstract

X-ray bursters are a class of Low Mass X-Ray Binaries where accreted material from a donor star undergoes rapid thermonuclear burning in the surface layers of a neutron star. The flux released can temporarily exceed the Eddington limit and drive the photosphere to large radii. Such photospheric radius expansion bursts likely eject nuclear burning ashes into the interstellar medium, and may make possible the detection of photoionization edges. Indeed, Theoretical models predict that absorption edges from 58Fe at 9.2 keV, 60Zn and 62Zn at 12.2 keV should be detectable by Simbol X. A positive detection would thus probe the nuclear burning as well as the gravitational redshift from the neutron star. Moreover, likely observations of atomic X-ray spectral components reflected from the inner accretion disk have been reported. The high spectral resolution capabilities of Simbol X may therefore make possible to differentiate between the potential interpretations of the X-ray bursts spectral features.
Original languageEnglish
Publication date2008
Publication statusPublished - 2008
Event2nd International Simbol-X Symposium - Paris, France
Duration: 1 Jan 2008 → …
Conference number: 2

Conference

Conference2nd International Simbol-X Symposium
Number2
CityParis, France
Period01/01/2008 → …

Cite this

Chenevez, J. (2008). Focused study of thermonuclear bursts on neutron stars. Poster session presented at 2nd International Simbol-X Symposium, Paris, France, . http://www.apc.univ-paris7.fr/Simbolx2008/