Erratum of ATEL #12123
ATel #12125; M. Cardillo (INAF/IAPS)
on 18 Oct 2018; 10:00 UT
Credential Certification: MARTINA CARDILLO (martina.cardillo@iaps.inaf.it)
Subjects: Gamma Ray, Pulsar
Referred to by ATel #: 12753
There was a misprint in ATEL #12123: we executed a one day integration, from 2018-10-16 22:49 UT to 2018-10-17 22:49 UT and NOT from 2018-10-16 22:49 UT to 2018-08-17 22:49 UT.
Below you find the correct information.
AGILE is detecting an intense gamma-ray flare above 100 MeV from the direction of the Crab Nebula.
Integrating on one day, from 2018-10-16 22:49 UT to 2018-10-17 22:49 UT, a maximum likelihood analysis yields a detection at a significance level of about 5.5 sigma, and a flux F = (1.1 ± 0.4) x 10^-5 ph/cm^2/s (E > 100 MeV). This is a factor 5 higher than the average flux (2.2 ± 0.1) x 10^-6 ph/cm^2/s (E > 100 MeV) reported in the First AGILE catalog.
The AGILE-GRID detection was obtained while AGILE is observing in spinning mode, surveying a large fraction of the sky each day. The source can be monitored with the public mobile application "AGILEScience" developed by the AGILE Team, available for both Android and iOS devices.