12-23 July 2021
Online
Europe/Berlin timezone

Modeling the non-flaring VHE emission from M87 as detected by the HAWC gamma ray observatory

13 Jul 2021, 18:00
1h 30m
04

04

Talk GAI | Gamma Ray Indirect Discussion

Speaker

Fernando Ureña Mena (Instituto Nacional de Astrofísica, Óptica y Electrónica, Tonantzintla, Puebla, Mexico)

Description

M87 is a giant radio galaxy located in the Virgo Cluster, known to be a very high energy (VHE) gamma-ray source. As radio galaxies are considered the misaligned low-redshift counterparts of blazars, they are excellent laboratories for testing AGN emission models. M87 has been detected and monitored by Fermi-LAT and several atmospheric Cherenkov telescopes. Recently, the HAWC Collaboration has reported weak evidence of long-term TeV gamma-ray emission from this source. However, HAWC data has the potential to constrain the average VHE emission of sources of complex behavior, like M87, for which the physical origin of the VHE gamma-ray emission is still uncertain. We fitted a lepto-hadronic scenario to the broadband spectral energy distribution of M87 to model its non-flaring VHE emission using HAWC data

Keywords

Active galactic nuclei; Gamma rays; M87; Radiation mechanisms

Subcategory Experimental Results
Collaboration HAWC

Primary authors

Fernando Ureña Mena (Instituto Nacional de Astrofísica, Óptica y Electrónica, Tonantzintla, Puebla, Mexico) Dr Alberto Carramiñana (Instituto Nacional de Astrofísica, Óptica y Electrónica, Tonantzintla, Puebla, Mexico) Dr Anna Lia Longinotti (Instituto de Astronomía, Universidad Nacional Autónoma de México, Ciudad de México, Mexico) Dr Daniel Rosa González (Instituto Nacional de Astrofísica, Óptica y Electrónica, Tonantzintla, Puebla, Mexico) for the HAWC Collaboration

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