2002A&A...383..524B

Query : 2002A&A...383..524B

2002A&A...383..524B - Astronomy and Astrophysics, volume 383, 524-532 (2002/2-4)

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

BHATTACHARYYA S.

Abstract (from CDS):

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.

Abstract Copyright: ∼

Journal keyword(s): accretion, accretion discs - relativity - stars: neutron - stars: rotation - X-rays: binaries

Simbad objects: 7

Full paper

View the references in ADS

Number of rows : 7

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Sp type	#ref 1850 - 2023	#notes
1	V* V1101 Sco	LXB	17 05 44.4916006152	-36 25 23.049324480		20.10	18.6		~	429	0
2	X Sgr X-3	LXB	18 01 32.3	-20 31 44					~	231	1
3	V* V4580 Sgr	LXB	18 08 27.54	-36 58 44.3		16.81	16.51		~	964	0
4	V* NP Ser	LXB	18 16 01.389	-14 02 10.62		18.8			K	634	2
5	X Sgr X-4	LXB	18 23 40.57	-30 21 40.6		19.06	18.81		~	975	1
6	PSR B1937+21	Psr	19 39 39.6	+21 37 22					~	1046	2
7	V* V1341 Cyg	LXB	21 44 41.1544345272	+38 19 17.066570988	15.00	15.13	14.68	15.00	A9III	1136	1

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