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

GCN Circular 3712

GRB 050730: PROMPT VRcIc Observations
2005-07-31T04:10:36Z (19 years ago)
Josh Haislip at U.North Carolina <>
J. Haislip, J. Kirschbrown, D. Reichart, M. Bayliss, A. Crain, M.
Nysewander report on behalf of the UNC team of the FUN GRB Collaboration:

Under the control of Skynet, PROMPT automatically observed the localization
of GRB 050730 (Holland et al., GCN 3704) beginning 3.1 hours after the
burst in repeating blocks of VRcIc.

We detect the afterglow (Holland et al., GCN 3704; Cobb et al., GCN 3708).
At 3.3 hours after the burst, we measure Rc = 17.82 +/- 0.05, based on 3
USNO-B1.0 stars.

PROMPT is still being built and commissioned.
Looking for U.S. government information and services? Visit