2001ApJ...548L.179B

Query : 2001ApJ...548L.179B

2001ApJ...548L.179B - Astrophys. J., 548, L179-L182 (2001/February-3)

Neutron stars with a stable, light supersymmetric baryon.

BALBERG S., FARRAR G.R. and PIRAN T.

Abstract (from CDS):

If a light gluino exists, the lightest gluino-containing baryon, S0, is a possible candidate for self-interacting dark matter. In this scenario, the simplest explanation for the observed ratio ΩDM/Ωb~6-10 is that mS0^_∼900 MeV.c–2; at present, this is not excluded by particle physics. Such an S0 could be present in neutron stars, with the hyperon formation serving as an intermediate stage. We calculate equilibrium compositions and the equation of state for high-density matter with S0, and we find that for a wide range of parameters, the properties of neutron stars with S0 are consistent with observations. In particular, the maximum mass of a nonrotating star is 1.7-1.8 M☉, and the presence of S0 is helpful in reconciling observed cooling rates with hyperon formation.

Abstract Copyright: ∼

Journal keyword(s): Cosmology: Dark Matter - Dense Matter - Elementary Particles - Equation of State - Stars: Neutron

Simbad objects: 1

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Number of rows : 1
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 PSR J1915+1606 Psr 19 15 27.99999 +16 06 27.4034     22.5     ~ 1032 1

Query : 2001ApJ...548L.179B

Basic data :
PSR J1915+1606 -- Pulsar
Other object types: otypes_help 		SB* (SBC7,SBC9), Psr (PSR), * (WEB)
ICRS coord. (ep=J2000) : 		19 15 27.99999 +16 06 27.4034 [ ] D 2003ASPC..302...93W
FK4 coord. (ep=B1950 eq=1950) : 		19 13 12.45366 +16 01 07.9874 [ ]
Gal coord. (ep=J2000) : 		049.96765583 +02.12189140 [ ]
Fluxes (1) :
V 22.5 [~] E ~
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Identifiers (7) :
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PSR B1913+16.0 PSR B1913+16 SBC7 741 WEB 16499
NAME Hulse-Taylor PSR PSR J1915+1606 SBC9 1137

References (1032 between 1850 and 2026) (Total 1032)
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