The soft X-ray counterpart of the newly discovered INTEGRAL source IGRJ16195-4945
arXiv:astro-ph/0411610 · doi:10.1051/0004-6361:200400114
Abstract
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,IGRJ16195-4945. The ASCA source is faint (Flux~10^-11erg/cm2/s), highly absorbed (NH~10^23cm-2) and has a rather hard spectrum (photon index0.6).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 IGRJ16195-4945 shows that this source is variable and was in a high state with a 20-40 keV flux of 17mCrab in two occasions in March 2003.
arXiv comment4 pages, 4 figures; accepted for publication in Astronomy & Astrophysics Letters
References in corpus (9)
- The INTEGRAL Science Data Centre (ISDC)
- Faint X-ray sources resolved in the ASCA Galactic plane survey and their contribution to the Galactic ridge X-ray emission
- A Hard X-ray survey of the Galactic Center with INTEGRAL/IBIS. Catalog of sources
- INTEGRAL discovery of a bright highly obscured galactic X-ray binary source IGR J16318-4848
- INTEGRAL/IBIS survey of the Sagittarius Arm Tangent region: A source catalog
- IBIS/PICsIT in-flight performances
- The Peculiar X-ray Transient IGR 16358-4726
- An XMM Observation of IGR J16320-4751=AX J1631.9-4752
- BeppoSAX serendipitous discovery of the X-ray pulsar SAX J1802.7-2017
Cited by in corpus (16)
- High-Mass X-ray Binaries in the Milky Way: A closer look with INTEGRAL
- Are There Magnetars in High Mass X-ray Binaries? The Case of SuperGiant Fast X-Ray Transients
- Unveiling supergiant fast X-ray transient sources with INTEGRAL
- Probing clumpy stellar winds with a neutron star
- Multi-wavelength observations of Galactic hard X-ray sources discovered by INTEGRAL. I. The nature of the companion star
- Multi-wavelength observations of Galactic hard X-ray sources discovered by INTEGRAL. II. The environment of the companion star
- Population of persistent high mass X-ray binaries in the Milky Way
- Clustering between high-mass X-ray binaries and OB associations in the Milky Way
- Infrared identification of high-mass X-ray binaries discovered by INTEGRAL
- Identifications of Four INTEGRAL Sources in the Galactic Plane via Chandra Localizations
- Variations in the pulsation and spectral characteristics of OAO 1657-415
- Suzaku Observations of Four Heavily Absorbed HMXBs
- INTEGRAL/IBIS observations of a hard X-ray outburst in high mass X-ray binary 4U 2206+54
- GMRT observations of the field of INTEGRAL X-ray sources- II (newly discovered hard X-ray sources)
- Swift reveals the eclipsing nature of the high mass X-ray binary IGR~J16195-4945
- Further evidence for natal kick segregation by spectral type in high-mass X-ray binaries