Position of RXTE 82.4s pulsar (XTE J0052-725) determined using archive Chandra Data.
ATel #215; W. R.T. Edge & M. J. Coe (Southampton University), R. H.D. Corbet (GSFC and USRA), C. B. Markwardt (GSFC and University of Maryland), S. Laycock (CfA), F. E. Marshall (GSFC)
on 18 Dec 2003; 16:56 UT
Credential Certification: W R T Edge (wrte@astro.soton.ac.uk)
Subjects: X-ray, Binary, Transient, Pulsar
Referred to by ATel #: 216
We have determined the position of pulsar XTE J0052-725 from
an analysis of archive Chandra data. This source was detected by RXTE on
June 19 and 26, 2002 and the results were published in IAUC # 7932 . We noted that there was an X-ray source at R.A. = 00h52m09.1s Decl. = -72º338m03s (equinox 2000), with a 90% confidence radial uncertainty of 0.6 arcsec, in Chandra Observation ID 2946 which took place between 2002-07-04 06:47:00 and 2003-07-09 10:37:01 (Zezas et al. astro-ph/0310562, 2003). We carried out a timing analysis of this object and found a period of 82.46 seconds +/- 0.18 seconds. This is within 0.06s of the RXTE period and the position lies 6 arc minutes from the original mean RXTE location. We have identified this source with the optical counterpart MACS J0052-726#004 R.A. = 00h52m09.09201s Decl. = -72º338m03.06872s.
