2000A&A...358..583C

Query : 2000A&A...358..583C

2000A&A...358..583C - Astronomy and Astrophysics, volume 358583-586 (2000/6-2)

BeppoSAX observation of Cen X-4 in quiescence.

CAMPANA S., STELLA L., MEREGHETTI S. and CREMONESI D.

Abstract (from CDS):

We report on a 61 ks BeppoSAX observation of the soft X-ray transient Cen X-4 during quiescence which allowed to study the source X-ray spectrum from ∼0.3keV to ∼8keV. A two-component spectral model was required, consisting of a black body with temperature of ∼0.1keV and a power law with photon index ∼2. These values are compatible with earlier ASCA results indicating that Cen X-4 may be stable, within a factor of a few, over a 5 year baseline.

Abstract Copyright: ∼

Journal keyword(s): stars: individual: Cen X-4 - stars: neutron - stars: AGB and post-AGB - X-rays: 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 V* V822 Cen LXB 14 58 21.9347842080 -31 40 07.515432768 11.95 12.85 12.8     K3-K7V 555 0

Query : 2000A&A...358..583C

Basic data :
V* V822 Cen -- Low Mass X-ray Binary
Other object types: otypes_help 		LXB (), X (X,2E,...), V* (2012A&A,V*,...), N* (2014MNRAS), No* (NOVA), PM* (2018yCat), * (Gaia), gam (INTREF), NIR (2MASS)
ICRS coord. (ep=J2000) : 		14 58 21.9347842080 -31 40 07.515432768 (Optical) [ 0.1138 0.0928 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		14 55 19.5306394973 -31 28 06.205204174 [ 0.1138 0.0928 90 ]
Gal coord. (ep=J2000) : 		332.2424627747539 +23.8813680942294 [ 0.1138 0.0928 90 ]
Proper motions mas/yr : 		0.844 -55.682 [0.154 0.127 90] A 2020yCat.1350....0G
Parallaxes (mas): 		0.5272 [0.1259] A 2020yCat.1350....0G
Spectral type: 		K3-K7V D 2008MNRAS.387..788R
Fluxes (7) :
U 11.95 [~] D 2007A&A...469..807L
B 12.85 [~] D 2007A&A...469..807L
V 12.8 [~] D 2007A&A...469..807L
G 17.854422 [0.005593] C 2020yCat.1350....0G
J 15.601 [0.056] C 2003yCat.2246....0C
H 15.051 [0.072] C 2003yCat.2246....0C
K 14.663 [0.078] C 2003yCat.2246....0C
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Identifiers (16) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

X Cen X-4 2MASS J14582192-3140073 4U 1456-32 [BM83] X1455-314
2E 3357 NOVA Cen 1969 V* V822 Cen AAVSO 1452-31
2E 1455.2-3127 1RXS J145821.8-314010 XB 1455-31 Gaia DR3 6205715168442046592
INTREF 628 TIC 461646008 XB 1455-314 Gaia DR2 6205715168442046592

References (555 between 1850 and 2026) (Total 555)
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

Plx : 2    PM : 2   

   

Observing logs
IUE : 7    XMM : 2   

   

External archives :

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

Link by name to the catalogue in VizieR :

2E 3357 2MASS J14582192-3140073 1RXS J145821.8-314010 V* V822 Cen Gaia DR3 6205715168442046592
Gaia DR2 6205715168442046592

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