Low-Frequency Radio Transients in the Galactic Center
Astrophysics
2009-11-07 v1
Abstract
We report the detection of a new radio transient source, GCRT J1746-2757, located only 1.1 degrees north of the Galactic center. Consistent with other radio transients toward the Galactic center, this source brightened and faded on a time scale of a few months. No X-ray counterpart was detected. We also report new 0.33 GHz measurements of the radio counterpart to the X-ray transient source, XTE J1748-288, previously detected and monitored at higher radio frequencies. We show that the spectrum of XTE J1748-288 steepened considerably during a period of a few months after its peak. We also discuss the need for a more efficient means of finding additional radio transients.
Keywords
Cite
@article{arxiv.astro-ph/0110151,
title = {Low-Frequency Radio Transients in the Galactic Center},
author = {Scott D. Hyman and T. Joseph W. Lazio and Namir E. Kassim},
journal= {arXiv preprint arXiv:astro-ph/0110151},
year = {2009}
}