2005A&A...429L..47S


C.D.S. - SIMBAD4 rel 1.7 - 2021.02.24CET20:12:07

2005A&A...429L..47S - Astronomy and Astrophysics, volume 429, L47-50 (2005/1-3)

The soft X-ray counterpart of the newly discovered INTEGRAL source IGR J16195-4945.

SIDOLI L., VERCELLONE S., MEREGHETTI S. and TAVANI M.

Abstract (from CDS):

The INTEGRAL satellite, during its regular scanning observations of the Galactic plane, has discovered several new X-ray sources emitting above 20 keV. The nature of the great majority of them is still unknown. Here we report on the likely low energy counterpart, observed with ASCA in 1994 and 1997, of one of these sources, IGR J16195-4945. The ASCA source is faint (F2–10keV∼10–11erg/cm2/s), highly absorbed (NH∼1023cm–2) and has a rather hard spectrum (photon index ∼0.6). These spectral properties are suggestive of a neutron star in a High Mass X-ray Binary. Our analysis of all the public INTEGRAL data of IGR J16195-4945 shows that this source is variable and was in a high state with a 20-40keV flux of ∼17mCrab in two occasions in March 2003.

Abstract Copyright:

Journal keyword(s): individual: IGR J16195-4945, AX J161929-4945 - X-rays: binaries

Simbad objects: 4

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Number of rows : 4

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 HD 146628 * 16 19 29.5213460341 -49 45 40.716565476 10.23 10.58 10.06 10.02   B1/2Ia 64 1
2 IGR J16195-4945 HXB 16 19 32.1829528980 -49 44 30.564960595   17.4 16.8 15.3 15.6 B1sg 47 0
3 IGR J18029-2016 HXB 18 02 39.9 -20 17 13           B1b 71 1
4 [KRL2007b] 332 HXB 18 41 00.43 -05 35 46.5           B1Ib 117 1

    Equat.    Gal    SGal    Ecl

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