XTE J1748-288
Abstract
T. Strohmayer and F. E. Marshall, Goddard Space Flight Center, on behalf of the RXTE Science Operations Center, report an improved position for this x-ray transient (IAUC 6932) of R.A. = 17h48m08s, Decl. = -28o29'.2 (equinox 2000.0) with an estimated uncertainty of 1' based on scans across the source with the Proportional Counter Array on the Rossi X-ray Timing Explorer on June 5.13 UT. The observed 2-10-keV flux of about 600 mCrab indicates a continued brightening of the source. R. M. Hjellming and M. P. Rupen, National Radio Astronomy Observatory (NRAO); and A. J. Mioduszewski, Joint Institute for VLBI in Europe and NRAO, report: "Very Large Array observations on June 7.40 UT of the field of XTE J1748-288 show the presence of an unresolved radio source with flux densities of 50 +/- 3 and 28 +/- 2 mJy at 1.46 and 4.86 GHz, respectively. Its position is R.A. = 17h48m05s.06, Decl. = -28o28'25".8 (equinox 2000.0; uncertainty 0".6), which is 1' from the center of the 1' uncertainty region for XTE J1748-288 (see above). It is a candidate for the radio counterpart of the x-ray transient because it is much stronger than the usual background radio source, but variability still needs to be established."
- Publication:
-
International Astronomical Union Circular
- Pub Date:
- June 1998
- Bibcode:
- 1998IAUC.6934....2S