1996A&AS..120C.249B

Query : 1996A&AS..120C.249B

1996A&AS..120C.249B - Astron. Astrophys., Suppl. Ser., 120C, 249-250 (1996/December-3)

A persistent hard X-ray source observed in the Terzan 1 globular cluster by the SIGMA telescope.

BORREL V., BOUCHET L., JOURDAIN E., ROQUES J.P., VARGAS M., GOLDWURM A., DENIS M., PAUL J., CHURAZOV E., GILFANOV M., FINOGUENOV A., SUNYAEV R., DYACHKOV A., KHAVENSON N., CHULKOV I. and NOVIKOV B.

Abstract (from CDS):

A persistent hard X-ray emission has been observed by the SIGMA telescope in the Terzan 1 globular cluster. The photon spectrum is reproduced by a power law with spectral index equal to -3.2±0.7. The luminosity calculated in the 40-75keV energy range assuming a distance of 10kpc is equal to (4±0.8) 10³⁵erg/s. This source is already known as an X-ray burster and has been studied by HEAO1, SL2-XRT, Exosat, Rosat and ART-P and it may be a LMXB with a neutron star as the compact member.

Abstract Copyright: ∼

Journal keyword(s): globular clusters: individual: Terzan 1 - gamma-rays: observations

CDS comments: Special Issue "3rd Compton Symposium"

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	ESO 455-23	GlC	17 35 47.80	-30 28 11.0						~	285	0

Query : 1996A&AS..120C.249B

Basic data :

ESO 455-23 -- Globular Cluster
Other object types:	`Cl* (C,Cl,...)`, `GlC (2013A&A,GCl)`, `G (ESO)`
ICRS coord. (ep=J2000) :	`17 35 47.80 -30 28 11.0 [ ] D 2006MNRAS.365.1357D`
FK4 coord. (ep=B1950 eq=1950) :	`17 32 34.99 -30 26 18.1 [ ]`
Gal coord. (ep=J2000) :	`357.56888 +00.99579 [ ]`
Proper motions mas/yr :	`-2.94 -4.62 [0.06 0.05 90] C` `2019MNRAS.482.5138B`
Radial velocity / Redshift / cz :	`V(km/s) 57.7 [1.2] / z(spectroscopic) 0.000192 [0.000004] / cz 57.71 [1.20] (Opt) B 2018MNRAS.478.1520B`
Parallaxes (mas):	`0.044 [0.022] C` `2021MNRAS.505.5978V`

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`ESO 455-23`	`Cl Haute-Provence 2`	`Cl VDBH 235`	`[KPS2012] MWSC 2635`
`C 1732-304`	`Cl Terzan 1`	`GCl 69`

References (285 between 1850 and 2026) (Total 285)
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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Data at NED - NASA/IPAC Extragalactic Database : ESO 455-23

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