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

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

2002A&A...383..524B - Astronomy and Astrophysics, volume 383524-532 (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

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Number of rows : 7
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 V* V1101 Sco LXB 17 05 44.4916006152 -36 25 23.049324480   20.10 18.6     ~ 473 0
2 X Sgr X-3 LXB 18 01 32.6 -20 31 45           ~ 254 1
3 SAX J1808.4-3658 LXB 18 08 27.58 -36 58 43.9           ~ 1051 0
4 V* NP Ser LXB 18 16 01.7 -14 02 09   18.8       K 683 2
5 X Sgr X-4 LXB 18 23 40.57 -30 21 40.6   19.06 18.81     ~ 1056 1
6 PSR B1937+21.4 Psr 19 39 38.560096 +21 34 59.13552           ~ 1142 0
7 V* V1341 Cyg LXB 21 44 41.1544345272 +38 19 17.066570988 15.00 15.13 14.68 15.00   A9III 1229 1

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