2004A&A...422L...1H

Query : 2004A&A...422L...1H

2004A&A...422L...1H - Astronomy and Astrophysics, volume 422L1-4 (2004/7-4)

Self-bound CFL stars in binary systems: Are they ``hidden'' among the black hole candidates?

HORVATH J.E. and LUGONES G.

Abstract (from CDS):

The identification of black holes is one of the most important tasks of modern astrophysics. Candidates have been selected among binary stars based on a high mass function, and seriously considered when the lower mass limit exceeds ∼3M☉. More recently the absence of (type I) thermonuclear bursts has been advanced as an additional criterion in favor of the black hole interpretation, since the absence of a solid surface naturally precludes the accumulation and ignition of accreting material. We discuss in this Letter the possibility that self-bound stars made of CFL-paired quarks mimic the behavior of at least the low-mass end black holes as a result of: a) higher maximum masses than ordinary neutron stars, b) low steady luminosities due to the bare surface properties, and c) impossibility of generating type I bursts because of the complete absence of normal matter crusts at their surfaces. These features caution against a positive identification of event horizons based on the lack of bursts.

Abstract Copyright: ∼

Journal keyword(s): X-ray binary systems - black holes - thermonuclear bursts - CFL stars

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 1A 0620-00 HXB 06 22 44.5423857312 -00 20 44.290460544           K3V-K7V 1144 0

Query : 2004A&A...422L...1H

Basic data :
1A 0620-00 -- High Mass X-ray Binary
Other object types: otypes_help 		X (X,1A,...), V* (V*,AAVSO), * (WEB,Gaia), HXB (2016ApJS), No* (NOVA), SB* (SBC9), gam (INTREF), Rad (AO), NIR (2MASS), MIR (WISE), Opt (SDSS)
ICRS coord. (ep=J2000) : 		06 22 44.5423857312 -00 20 44.290460544 (Optical) [ 0.0889 0.0984 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		06 20 11.1936058079 -00 19 10.351756256 [ 0.0889 0.0984 90 ]
Gal coord. (ep=J2000) : 		209.9562692232254 -06.5396806443669 [ 0.0889 0.0984 90 ]
Proper motions mas/yr : 		-0.439 -5.138 [0.108 0.096 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) -5.0 [~] / z(~) -0.000017 [~] / cz -5.00 [~]
   E 1995A&AS..114..269D
Parallaxes (mas): 		0.6969 [0.1168] A 2020yCat.1350....0G
Spectral type: 		K3V-K7V C 2008NewAR..51..860Y
Fluxes (9) :
G 17.472565 [0.008556] C 2020yCat.1350....0G
J 15.488 [0.054] C 2003yCat.2246....0C
H 14.737 [0.061] C 2003yCat.2246....0C
K 14.383 [0.074] C 2003yCat.2246....0C
u (AB) 20.280 [0.042] C 2020ApJS..249....3A
g (AB) 18.700 [0.008] B 2020ApJS..249....3A
r (AB) 17.533 [0.006] B 2020ApJS..249....3A
i (AB) 17.052 [0.006] B 2020ApJS..249....3A
z (AB) 16.656 [0.010] C 2020ApJS..249....3A
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Identifiers (23) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

X Mon X-1 2MASS J06224454-0020442 TIC 251264995 [RLC2006] XB1
1A 0620-00 NOVA Mon 1917 V* V616 Mon [ZGH2005] XS00095B7-004
3A 0620-003 NOVA Mon 1975 WEB 6033 AAVSO 0617-00
AO 0621-00 2S 0620-003 WISE J062244.54-002044.1 Gaia DR3 3118721026600835328
CXOPS J062244.5-002044 SBC9 396 1XRS 06201-003 Gaia DR2 3118721026600835328
INTREF 297 SDSS J062244.54-002044.2 [BM83] X0620-003

References (1144 between 1850 and 2026) (Total 1144)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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Collections of Measurements Description of Measurements

Velocities : 1    Plx : 2    PM : 2   

   

Observing logs
XMM : 1   

   

External archives :

Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Data at NED - NASA/IPAC Extragalactic Database : 1A 0620-00

Link by name to the catalogue in VizieR :

2MASS J06224454-0020442 SDSS J062244.54-002044.2 V* V616 Mon WISE J062244.54-002044.1 Gaia DR3 3118721026600835328
Gaia DR2 3118721026600835328

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