Swift, INTEGRAL, RXTE, and Spitzer Reveal IGR J16283-4838
Abstract
We present the first combined study of the recently discovered source IGR J16283-4838 with Swift, INTEGRAL, and RXTE. The source, discovered by INTEGRAL on 2005 April 7, shows a highly absorbed [variable NH=(0.4-1.7)×1023 cm-2] and flat (Γ~1) spectrum in the Swift XRT and RXTE PCA data. No optical counterpart is detectable (V>20 mag), but a possible infrared counterpart within the Swift XRT error radius is detected in the 2MASS and Spitzer GLIMPSE. The observations suggest that IGR J16283-4838 is a high-mass X-ray binary (HMXB) containing a neutron star embedded in Compton thick material. This makes IGR J16283-4838 a member of the class of highly absorbed HMXBs, discovered by INTEGRAL.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- September 2005
- DOI:
- 10.1086/432600
- arXiv:
- arXiv:astro-ph/0506170
- Bibcode:
- 2005ApJ...631..506B
- Keywords:
-
- Gamma Rays: Observations;
- Stars: Neutron;
- X-Rays: Binaries;
- X-rays: individual (IGR J16283-4838);
- Astrophysics
- E-Print:
- 8 pages, 3 figures, accepted for publication in ApJ