BEXCO - Room F(201/202/203/204)
[GA255] Spectral analysis of Markarian 421 and Markarian 501 with HAWC
The Hight Altitude Water Cherenkov (HAWC) Gamma-Ray Observatory monitors the gamma-ray sky in the energy range from 100 GeV to 100 TeV and has detected two very high energy (VHE) blazars: Markarian 421 (Mrk 421) and Markarian 501 (Mrk 501) in 1.5 years of observations. In this work, we present the spectral analysis above 1 TeV of both sources using a maximum likelihood method. The main objectives are to constrain the spectral curvature of Mrk 421 and Mrk 501 at ~5 TeV in order to study the attenuation effect due to the extragalactic background light (EBL) in the poorly-measured 1-100 μm range, and to test different emission mechanisms models.