2013MNRAS.431.3216G

Query : 2013MNRAS.431.3216G

2013MNRAS.431.3216G - Mon. Not. R. Astron. Soc., 431, 3216-3221 (2013/June-1)

Strange star equation of state fits the refined mass measurement of 12 pulsars and predicts their radii.

GANGOPADHYAY T., RAY S., LI X.-D., DEY J. and DEY M.

Abstract (from CDS):

There are three categories of stars whose masses have been found accurately in recent times: (1) two for which Shapiro delay is used, which is possible due to GR light bending as the partner is heavy - PSR J1614-2230 and PSR J1903+0327, (2) six eclipsing stars for which numerical Roche lobe geometry is used and (3) three stars for which spectroscopic methods are used and in fact for these three the mass and radii both are estimated. Motivated by large colour (Nc) expansion using a modified Richardson potential, along with density-dependent quark masses thereby allowing chiral symmetry restoration, we get compact strange stars fitting all the observed masses.

Abstract Copyright: © 2013 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2013)

Journal keyword(s): stars: neutron - pulsars: general

CDS comments: 4U 1528-52 (p.3219) is a probable misprint for 4U 1538-52 ; EXO 17454-248 and EXO 1785-248 (section 4) are misprints for EXO 1745-248 ; PSR J1614+2230 (introduction) is a misprint for PSR J1614-2230 ; PSR J1903-0327 (introduction) is a misprint for PSR J1903+0327 ; SMC X-4 (Table 2) is a probable misprint for SMC X-1.

Simbad objects: 15

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Number of rows : 15
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 SK 160 HXB 01 17 05.1457288392 -73 26 36.014808156 12.23 13.00 13.15   13.17 O9.7Ia+ 918 0
2 X LMC X-4 HXB 05 32 49.5556042296 -66 22 13.202721768   13.9 14.0 14.290   O8III 714 0
3 V* GP Vel HXB 09 02 06.8608812864 -40 33 16.899168060 6.85 7.37 6.87 6.31 6.05 B0.5Ia 1588 0
4 V* V779 Cen HXB 11 21 15.0920532528 -60 37 25.630264596   14.4 12.27     O9III/Veq 1159 0
5 V* QV Nor HXB 15 42 23.3633146128 -52 23 09.577395960   16.3 14.5     B0.2Ia 455 1
6 V* QX Nor LXB 16 12 43.0 -52 25 26           ~ 946 1
7 PSR J1614-2230 Psr 16 14 36.50974 -22 30 31.5420           ~ 452 1
8 V* HZ Her LXB 16 57 49.8110126616 +35 20 32.486555472 11.90 14.89 13.63 13.88   B3/6ep 2172 0
9 SRGA J173953.4-282943 LXB 17 39 53.4 -28 29 43           ~ 106 0
10 Cl Terzan 5 Cl* 17 48 05.00 -24 46 48.0           ~ 948 1
11 NAME TER 5 X-1 LXB 17 48 05.225 -24 46 47.66           ~ 229 1
12 SAX J1808.4-3658 LXB 18 08 27.58 -36 58 43.9           ~ 1051 0
13 NGC 6624 GlC 18 23 40.51 -30 21 39.7           ~ 939 1
14 X Sgr X-4 LXB 18 23 40.57 -30 21 40.6   19.06 18.81     ~ 1056 1
15 PSR J1903+0327 Psr 19 03 05.7937 +03 27 19.222           ~ 187 1

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