Skip to main content
Testing. You are viewing the public testing version of GCN. For the production version, go to
Introducing Einstein Probe, Astro Flavored Markdown, and Notices Schema v4.0.0. See news and announcements

GCN Circular 22741

AGILE/MCAL detection of GRB 180529 and a possible precursor
2018-05-29T11:19:15Z (6 years ago)
Andrea Giuliani at IASF/INAF <>
A.Ursi (INAF/IAPS), M. Tavani (INAF/IAPS, and Univ. Roma Tor Vergata), A.
Giuliani (INAF/IASF-Mi), F. Verrecchia, F. Lucarelli (SSDC and INAF/OAR),
N. Parmiggiani, A. Bulgarelli (INAF/IASF-Bo), A. Trois (INAF/OA-Cagliari),
C. Pittori (SSDC and INAF/OAR),  M. Marisaldi (INAF/IASF-Bo and Bergen
University), F. Longo (Univ. Trieste and INFN Trieste), M. Pilia
(INAF/OA-Cagliari), M. Cardillo, G. Piano (INAF/IAPS), I. Donnarumma (ASI),
G. Minervini, A. Argan, Y. Evangelista (INAF/IAPS), V. Fioretti, F.
Fuschino (INAF/IASF-Bo), report on behalf of the AGILE Team:

The AGILE Mini-CALorimeter (MCAL) detected a burst at T0 = 2018-05-29
08:29:14.72 +/- 0.01 s (UTC), lasting about ~ 1.9 s. The burst was detected
following a possible associated single-peak brief precursor, occurring
about 2 s before, at T0 = 2018-05-29 08:29:12.58 +/- 0.01 s (UTC) and
lasting ~ 4 ms. The light curve of the main burst is composed of several
peaks and released a total of ~2200 counts at E> 400 keV in the detector,
above an average background rate of 23 counts / 32 ms.

Further analysis is still in progress.

The AGILE-MCAL detector has a full solid angle acceptance, and is
operational in the range 0.4 - 100 MeV.
Looking for U.S. government information and services? Visit