Monitoring the radio galaxy M87 with HAWC
arXiv:2108.00113 · doi:10.22323/1.395.0839
Abstract
Studies of radio galaxies at TeV energies are fascinating because their jets are misaligned concerning our sightline. Thus, it provides us with a unique opportunity to study the structure of their jets, the radiative processes, and the acceleration mechanisms involved in them. In addition, some radio galaxies have presented variability in their emission, like the giant radio galaxy M87, which has reported several activity periods. Due to its duty cycle >95% and instantaneous field of view of 2 sr, HAWC provides daily monitoring of variable sources visible from the Northern Hemisphere. In this work, we show the results of monitoring M87 between January 2015 and December 2018. HAWC's observations are consistent with the low activity state reported by other instruments (like H.E.S.S and MAGIC). However, after September 2017 (~MJD 58000), the HAWC measurements of M87 show hints of higher activity.
arXiv commentPresented at the 37th International Cosmic Ray Conference (ICRC2021), Berlin, Germany - Online
References in corpus (7)
- Observation of the Crab Nebula with the HAWC Gamma-Ray Observatory
- Black hole lightning due to particle acceleration at subhorizon scales
- Is the Giant Radio Galaxy M87 a TeV Gamma-Ray Emitter?
- Daily monitoring of TeV gamma-ray emission from Mrk 421, Mrk 501, and the Crab Nebula with HAWC
- Monitoring of the radio galaxy M87 during a low emission state from 2012 to 2015 with MAGIC
- Modeling the Spectral Energy Distribution of the radio galaxy IC310
- Gamma-ray emission in radio galaxies, from MeV to TeV