26-30 June 2023
Centro Congressi Federico II
Europe/Rome timezone

Long term monitoring of TeV Active Galaxies seen by HAWC

Not scheduled
Aula Magna (Centro Congressi Federico II)

Aula Magna

Centro Congressi Federico II

Via Partenope, 36, Napoli, Italy
Poster Poster


Dr. Anna Lia Longinotti (Universidad Nacional Autónoma de México)


The High Altitude Water Cherenkov (HAWC) Observatory has been looking at the Northern sky in the TeV band since March 2015. Its long duty cycle (about 24 hours per day) allows an excellent continuous monitoring of the brightest Blazars and Radio Galaxies emitting in the gamma-ray regime. We present HAWC lights curves and TeV spectra of Mrk 421, Mrk 501 and M87 collected over 6 years.
The HAWC light curves of the Blazars are complemented by quasi simultaneous X-ray monitoring by the Swift satellite in the 0.2-10 keV. The strong correlation between these two bands found in Mrk 421 is consistent with a linear dependence, which is expected if the emission mechanism is one-zone synchrotron self-Compton. The correlation between flux and spectral index for both sources, provides confirmation for the harder-when-brighter behaviour.

Primary author

Dr. Anna Lia Longinotti (Universidad Nacional Autónoma de México)

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