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Title: Fermi-lat detection of two high galactic latitude gamma-ray sources, Fermi J1049.7+0435 and J1103.2+1145

During a search for gamma-ray emission from NGC 3628 (Arp 317), two new unidentified gamma-ray sources were discovered, Fermi J1049.7+0435 and J1103.2+1145. The detections were made using data from the Large Area Telescope (LAT), on board the Fermi Gamma-Ray Space Telescope, in the 100 MeV to 300 GeV band during the period between 2008 August 5 and 2012 October 27. Neither detection is coincident with any source listed in the second Fermi-LAT (2FGL) catalog. Fermi J1049.7+0435 is at Galactic coordinates (l, b) = (245.°34, 53.°27), (α{sub J2000}, δ{sub J2000}) = (162.°43, 4.°60). Fermi J1103.2+1145 is at Galactic coordinates (l, b) = (238.°85, 60.°33), (α{sub J2000}, δ{sub J2000}) = (165.°81, 11.°75). Possible radio counterparts are found for both sources, which show flat radio spectra similar to other Fermi-LAT detected active galactic nuclei, and their identifications are discussed.
Authors:
; ;  [1] ;  [2] ;  [3]
  1. Department of Physical Sciences, Ritsumeikan University, Kusatsu, Shiga 525-8577 (Japan)
  2. CSIRO Astronomy and Space Science, P.O. Box 76, Epping, NSW 1710 (Australia)
  3. CSIRO Astronomy and Space Science, Locked Bag 194, Narrabri, NSW 2390 (Australia)
Publication Date:
OSTI Identifier:
22351600
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astrophysical Journal; Journal Volume: 783; Journal Issue: 2; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; BL LACERTAE OBJECTS; CATALOGS; COSMIC GAMMA SOURCES; DETECTION; EMISSION; GALAXIES; GALAXY NUCLEI; GAMMA RADIATION; GEV RANGE; MEV RANGE; SPACE; SPECTRA; TELESCOPES