Fermi LAT Detection of a New Gamma-ray Source in the Galactic Plane: Fermi J0035+6131
ATel #8554; Giovanna Pivato (INFN and University of Pisa), Sara Buson (NASA-GSFC/CRESST/UMBC), Massimiliano Razzano (INFN and University of Pisa) on behalf of the Fermi Large Area Telescope collaboration
on 16 Jan 2016; 19:45 UT
Credential Certification: Sara Buson (sara.buson@nasa.gov)
Subjects: Gamma Ray, Request for Observations, AGN, Blazar, Transient
On Jan 14, 2016, the Large Area Telescope (LAT), one of the two instruments on the Fermi Gamma-ray Space Telescope, observed strong gamma-ray emission from a new source. The best-fit location of this gamma-ray source (RA=8.91 deg, Dec=61.52 deg, J2000.0) has a 95% containment radius of 0.08 deg (errors are statistical only). This source is not in any published LAT catalog and in the past has not been detected by AGILE or EGRET. The closest candidate counterpart is the radio source 87GB 003232.7+611352, with coordinates RA=8.8542 deg, Dec=61.5083 deg (J2000.0; Petrov et al. 2006, AJ, 131 1872), at an angular distance of 0.03 deg.
Preliminary analysis indicates that on Jan 14, 2016, the daily-averaged flux (E>100MeV) was (5.7+/-1.5)10^-7 photons cm^-2 s^-1, with a photon index of 1.8+/-0.2 (errors are statistical only).
Because Fermi operates in an all-sky scanning mode, regular gamma-ray monitoring of this source will continue. We encourage further multifrequency observations of this source. For this source the Fermi LAT contact person is Giovanna Pivato (giovanna.pivato@pi.infn.it).
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.
