Skip to main content
Introducing Einstein Probe, Astro Flavored Markdown, and Notices Schema v4.0.0. See news and announcements

GCN Circular 10707

GRB 100420A: EVLA radio observations
2010-05-02T01:41:11Z (14 years ago)
Poonam Chandra at Royal Mil. College Canada <>
Dale A. Frail (NRAO) and Poonam Chandra (RMC) report on behalf of a
larger collaboration:

"We observed the localization of dark burst GRB 100420A (Baumgartner 
et al. GCN 10628) with the Expanded Very Large Array (EVLA) on May 1.50 UT 
at a center frequency of 8.46 GHz.  We do not detect any radio source
anywhere within the refined XRT error circle (Beardmore et al., GCN 10638)
to a 3-sigma limit of 51 uJy.

The EVLA is still undergoing active commissioning and we caution that
these results should be considered preliminary.  The National Radio
Astronomy Observatory is a facility of the National Science Foundation
operated under cooperative agreement by Associated Universities, Inc."
Looking for U.S. government information and services? Visit