A study of accretion discs around rapidly rotating neutron stars in general relativity and its applications to four low mass X-ray binaries

Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/2850

Title:	A study of accretion discs around rapidly rotating neutron stars in general relativity and its applications to four low mass X-ray binaries
Authors:	Bhattacharyya, S
Keywords:	Accretion Accretion Discs Relativity Stars: Neutron Stars: Rotation X-Rays: Binaries
Issue Date:	Feb-2002
Publisher:	E D P Sciences
Citation:	Astronomy and Astrophysics, Vol. 383, No. 2, pp. 524 - 532
Abstract:	We calculate the accretion disc temperature profiles, disc luminosities and boundary layer luminosities for rapidly rotating neutron stars considering the full effect of general relativity. We compare the theoretical values of these quantities with their values inferred from EXOSAT data for four low mass X-ray binary sources: XB 1820-30, GX 17+2, GX 9+1 and GX 349+2 and constrain the values of several properties of these sources. According to our calculations, the neutron stars in GX 9+1 and GX 349+2 are rapidly rotating and stiffer equations of state are unfavoured.
URI:	http://hdl.handle.net/2248/2850
ISSN:	0004-6361
Appears in Collections:	IIAP Publications

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