Fermi-LAT detection of a GeV flare from blazar PKS 1352-104
ATel #6522; Stefano Ciprini (ASI Science Data Center and INAF Observatory of Rome, Italy), on behalf of the Fermi Large Area Telescope Collaboration
on 1 Oct 2014; 19:58 UT
Credential Certification: Stefano Ciprini (stefano.ciprini@asdc.asi.it)
Subjects: Gamma Ray, >GeV, Request for Observations, AGN, Blazar, Quasar
The Large Area Telescope (LAT), one of the two instruments on the Fermi Gamma-ray Space Telescope, has observed increasing gamma-ray flux from a source positionally consistent with the flat spectrum radio quasar PKS 1352-104 (also known as 2FGL J1354.7-1047, Nolan et al. 2012, ApJS, 199, 31) with radio counterpart coordinates, (J2000.0), R.A.: 208.69383 deg, Dec: -10.68407 deg (Fey et al. 2004, AJ, 127, 3587). This blazar has redshift z=0.332 (Browne et al. 1975, MNRAS, 173, 87).
Preliminary analysis indicates that PKS 1352-104 on September 29, 2014, was in a high state with a daily averaged gamma-ray flux (E>100MeV) of (0.9+/-0.2)X 10^-6 photons cm^-2 s^-1 (statistical uncertainty only), about 20 times greater than the average flux reported in the second Fermi-LAT catalog (2FGL).
Because Fermi operates in an all-sky scanning mode, regular gamma-ray monitoring of this source will continue. In consideration of the ongoing activity of this source, we encourage multiwavelength observations. For this source the Fermi LAT contact person is Roopesh Ojha (Roopesh.Ojha@gmail.com).
The Fermi LAT is a pair conversion telescope designed to cover the energy band from 20 MeV to greater than 300 GeV. It is the product of an international collaboration between NASA and DOE in the U.S. and many scientific institutions across France, Italy, Japan and Sweden.
