@misc{9b7f485d3afb471e8635c2a215ba649f,
title = "A new hard X-ray transient discovered by INTEGRAL: IGRJ17498-2921",
abstract = "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 \textasciitilde{}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.",
keywords = "Transient, Nautron Star, Binary, Black Hole, Gamma Ray, X-ray",
author = "L. Gibaud and A. Bazzano and E. Bozzo and M. Cadolle-Bel and J. Chenevez and P. Drave and C. Ferrigo and D. Gotz and M. Kadler and I. Kreykenbohm and G. Puehlhofer and J. Rodriguez and C. Sanchez-Fernandez and K. Watanabe",
year = "2011",
month = aug,
day = "12",
language = "English",
series = "The Astronomer's telegram",
publisher = "R. Rutledge",
number = "ATel \#3551",
type = "Other",
}