TITLE: GCN CIRCULAR NUMBER: 21848 SUBJECT: LIGO/Virgo G298048: LWA Detection DATE: 17/09/08 02:47:01 GMT FROM: Christopher League at FRBSG T. Callister (Caltech), J. Dowell (U New Mexico), J. Kanner (Caltech), M. Kavic (LIU Brooklyn), C. League (LIU Brooklyn), P. Shawhan (U Maryland), J. Simonetti (Virginia Tech), G. Taylor (U New Mexico), J. Tsai (Virginia Tech), C. Yancey (U Maryland) We report the preliminary detection of a radio source in a beam centered on RA 13.096h, Dec -22.024deg, the LIGO/Virgo G298048 event coordinates, during a four-hour observation on August 17 (19:15 UTC, 6.6 hours after the GW trigger), using station 1 of the Long Wavelength Array (LWA1) [GCN 21680]. Simultaneous ON-OFF observations were taken at 25 MHz and 45 MHz, and follow-up observations were taken August 24 (19:50 UTC), one week after the initial observations. Comparison of the ON-OFF observations for the two epochs indicate the apparent presence of a ~20 Jy source, at 25 MHz, in the beam on RA 13.096h, Dec -22.024deg. There is no difference between the ON-OFF results at 45 MHz, for the two epochs. Further analysis and follow up observations are underway.