FERMI-LAT DETECTION OF TWO HIGH GALACTIC LATITUDE GAMMA-RAY SOURCES, FERMI J1049.7+0435 AND J1103.2+1145

被引：0
|
作者：
Nishimichi, Masaki [1 ]
Okuda, Takeshi [1 ]
Mori, Masaki [1 ]
Edwards, Philip G. [2 ]
Stevens, Jamie [3 ]
机构：
[1] Ritsumeikan Univ, Dept Phys Sci, Kusatsu, Shiga 5258577, Japan
[2] CSIRO Astron & Space Sci, Epping, NSW 1710, Australia
[3] CSIRO Astron & Space Sci, Narrabri, NSW 2390, Australia
来源：
ASTROPHYSICAL JOURNAL | 2014年 / 783卷 / 02期
关键词：
BL Lacertae objects: general; galaxies: active; gamma rays: galaxies Online; LARGE-AREA TELESCOPE; EGRET SOURCES; SOURCE CATALOG; RADIO-SOURCES; SKY SURVEY; VARIABILITY;
D O I：
10.1088/0004-637X/783/2/94
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
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 degrees.34, 53 degrees.27), (alpha(J2000), delta(J2000)) = (162 degrees.43, 4 degrees.60). Fermi J1103.2+1145 is at Galactic coordinates (l, b) = (238 degrees.85, 60 degrees.33), (alpha(J2000), delta(J2000)) = (165 degrees.81, 11 degrees.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.
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