Publication Date:
2016-05-06
Description:
We present results from multiwavelength observations of the BL Lacertae object 1ES 1741 + 196, including results in the very high energy -ray regime using the Very Energetic Radiation Imaging Telescope Array System (VERITAS). The VERITAS time-averaged spectrum, measured above 180 GeV, is well modelled by a power law with a spectral index of 2.7 ± 0.7 stat ± 0.2 syst . The integral flux above 180 GeV is (3.9 ± 0.8 stat ± 1.0 syst ) x 10 –8 m –2 s –1 , corresponding to 1.6 per cent of the Crab nebula flux on average. The multiwavelength spectral energy distribution of the source suggests that 1ES 1741+196 is an extreme-high-frequency-peaked BL Lacertae object. The observations analysed in this paper extend over a period of six years, during which time no strong flares were observed in any band. This analysis is therefore one of the few characterizations of a blazar in a non-flaring state.
Print ISSN:
0035-8711
Electronic ISSN:
1365-2966
Topics:
Physics