GCN Circular 21848

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.