2011ATel.3551....1G

Query : 2011ATel.3551....1G

2011ATel.3551....1G - The Astronomer's Telegram, 3551, 1 (2011/August-0)

A new hard X-ray transient discovered by INTEGRAL: IGR J17498-2921.

GIBAUD L., BAZZANO A., BOZZO E., CADOLLE-BEL M., CHENEVEZ J., DRAVE S.P., FERRIGNO C., GOTZ D., KADLER M., KREYKENBOHM I., PUEHLHOFER G., RODRIGUEZ J., SANCHEZ-FERNANDEZ C. and WATANABE K.

Abstract (from CDS):

INTEGRAL discovered a new hard X-ray transient, IGR J17498-2921, during the observations performed from 2011-08-11 22:45 to 2011-08-12 05:54 UTC.

The source is detected in the IBIS/ISGRI mosaic at a preliminary significance level of 11 and 9 sigma in the 20-40 keV and 40-80 keV energy

bands, respectively. The corresponding fluxes are 19±2 and 23±3 mCrab (68% c.l., only statistical).

The best determined source position is at RA=17:49:49; DEC=-29:21:14 (J2000) with a 90% confinement radius of 2.3 arcmin.

The IBIS/ISGRI spectrum (exposure time 15.9 ks) can be well described by a a power-law with photon index 1.9±0.4 (90% c.l.). The estimated 20-100 keV flux from the spectral fit is ∼3.4e-10 erg/s/cm2.

Unfortunately, IGR J17498-2921 was located at the border of the JEM-X field of view (FOV) and thus we can not report yet on its detection at low energy (2-25 keV).

Further INTEGRAL observations of the FOV around IGR J17498-2921 are planned for the next days.


Abstract Copyright: ∼

Journal keyword(s): Gamma Ray - Binary - Black Hole - Neutron Star - Transient

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 IGR J17498-2921 LXB 17 49 55.35 -29 19 19.6           ~ 75 0

Query : 2011ATel.3551....1G

Basic data :
IGR J17498-2921 -- Low Mass X-ray Binary
Other object types: otypes_help 		LXB (2013ApJS), Psr (2014MNRAS), N* (2014MNRAS), gam (IGR), X (2022MNRAS)
ICRS coord. (ep=J2000) : 		17 49 55.35 -29 19 19.6 (X-ray) [ 600 600 90 ] C 2011ATel.3606....1C
FK4 coord. (ep=B1950 eq=1950) : 		17 46 44.10 -29 18 28.5 [ 600 600 90 ]
Gal coord. (ep=J2000) : 		000.15559 -01.00378 [ 600 600 90 ]
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Identifiers (1) :
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IGR J17498-2921

References (75 between 1850 and 2026) (Total 75)
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