Chandra HRC Localization of the Low-Mass X-Ray Binaries X1624-490 and X1702-429: The Infrared Counterparts
- Author(s)
- Stefanie Wachter, Joseph W. Wellhouse, Sandeep K. Patel, Alan P. Smale, Joao F. Alves, Patrice Bouchet
- Abstract
We report on the precise localization of the low-mass X-ray binariesX1624-490 and X1702-429 with the Chandra HRC-I. We determine the best positions to be 16h28m02.825s-49deg11'54.61" and17h06m15.314s-43deg02'08.69" (J2000.0) for X1624-490 andX1702-429, respectively, with the nominal Chandra positional uncertainty of 0.6". We also obtained deep IR observations of the fields of these sources in an effort to identify the IR counterparts. A single, faint(Ks=18.3+/-0.1) source is visible inside the Chandra error circle of X1624-490, and we propose this source as its IR counterpart.For X1702-429, a Ks=16.5+/-0.07 source is visible at the edge of the Chandra error circle. The brightness of both counterpart candidates is comparable to that of other low-mass X-ray binary IR counterparts when corrected for extinction and distance.
- Organisation(s)
- Department of Astrophysics
- External organisation(s)
- California Institute of Technology (Caltech), Harvey Mudd College, Universities Space Research Association, National Aeronautics & Space Administration (NASA), National Optical Astronomy Observatory Chile (ASTRO)
- Journal
- The Astrophysical Journal: an international review of astronomy and astronomical physics
- Volume
- 621
- Pages
- 393-397
- ISSN
- 0004-637X
- DOI
- https://doi.org/10.1086/427407
- Publication date
- 03-2005
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103004 Astrophysics
- Keywords
- Portal url
- https://ucris.univie.ac.at/portal/en/publications/chandra-hrc-localization-of-the-lowmass-xray-binaries-x1624490-and-x1702429-the-infrared-counterparts(3a38adf7-7857-49be-ad3b-ae16b3217d70).html