Multiwavelength study of potential blazar candidates among Fermi-LAT unidentified gamma-ray sources. Issue Volume 15:Issue S356(2019) (October 2019)

• Record Type: Journal Article
• Authors: Damascène Mbarubucyeye, Jean; Krauß, Felicia; Nkundabakura, Pheneas
• Editors: Pović, Mirjana; Marziani, Paola; Masegosa, Josefa; Netzer, Hagai; Negu, Seblu H.; Tessema, Solomon B.
• Is Part Of: Proceedings of the International Astronomical Union. Volume 15:Issue S356(2019)
• Page Start: 326
• Page End: 328
• Publication Date: 2019-10
• Subjects: radiation mechanism: non-thermal, -- gamma-rays: galaxies, -- galaxies: active galaxies, -- BL Lacertae objects: general, -- X-ray: general, -- methods: data analysis; Astronomy -- Congresses; Astronomy -- Periodicals; 520
• DOI: 10.1017/S1743921320003245
• Languages: English
• ISSNs: 1743-9213

Abstract

Abstract: Studying unidentified γ -ray sources is important as they may hide new discoveries. We conducted a multiwavelength analysis of 13 unidentified Fermi-LAT sources in the 3FGL catalogue that have no known counterparts (Unidentified Gamma-ray Sources, UnIDs). The sample was selected for sources that have a single radio and X-ray candidate counterpart in their uncertainty ellipses. The purpose of this study is to find a possible blazar signature and to model the Spectral Energy Distribution (SED) of the selected sources using an empirical log parabolic model. The results show that the synchrotron emission of all sources peaks in the infrared (IR) band and that the high-energy emission peaks in MeV to GeV bands. The SEDs of sources in our sample are all blazar like. In addition, the peak position of the sample reveals that 6 sources (46.2%) are Low Synchrotron Peaked (LSP) blazars, 4 (30.8%) of them are High Synchrotron Peaked (HSP) blazars, while 3 of them (23.0%) are Intermediate Synchrotron Peaked (ISP) blazars.