EBL study with HAWC observations of high-emission states of Mrk 421

27 Aug 2025, 18:00
2h
International Conference Center

International Conference Center

Poster High-Energy Astrophysics and Cosmic Rays Poster session

Speaker

Ramiro Torres Escobedo (上海交通大学)

Description

Emission of TeV gamma rays from high-emission states of nearby Active Galactic Nuclei (AGNs) can be used to put constraints on the photon density of the Extragalactic Background Light (EBL) in a region where there are not direct measurements of this background radiation field. Using HAWC observations of the AGN Mrk 421 after 10 years of data, we show preliminary evidence of the existence of two different emission states and their associated spectrum. Additionally, we show preparatory constraints on the EBL photon intensity around 1 TeV.

Collaboration you are representing HAWC

Author

Co-authors

Hao Zhou (Tsung-Dao Lee Institute, Shanghai Jiao Tong University) Ramiro Torres Escobedo (上海交通大学)

Presentation materials

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