| Name: | Sushmita Agarwal |
| Affiliation: | Indian Institute of Technology, Indore |
| Conference ID : | ASI2024_777 |
| Title : | Signatures of local absorption in high energy spectrum |
| Authors : | Sushmita Agarwal 1, Dr. Amit, Shukla 1, Prof. Dr. Karl Mannheim 2, Dr. Bhargav Vaidya 1 |
| Authors Affiliation: | 1 Department of Astronomy, Astrophysics and Space Engineering, Indian Institute of Technology, Indore
2 Institute for Theoretical Physics and Astrophysics, Universität Würzburg, D-97074 Würzburg, Germany |
| Mode of Presentation: | Poster |
| Abstract Category : | High Energy Phenomena, Fundamental Physics and Astronomy |
| Abstract : | Supermassive black holes with their high accretion rate have a luminous disk emission. The emitted disk luminosity is reprocessed into the jet surrounding, mostly into broad line region and torus, creating a dense jet environment. Fast variability, comparable to the size of a black hole, observed in blazars hints of a compact emission region placing it towards the inner parsec of the jet, precisely in the environment dominated by broad line region and accretion disk. However, no imprint of the attenuation expected due to pair creation in interaction with extrinsic jet photons, BLR and accretion disk photons, has been reported so far. In our work, we report a significant absorption feature dominating in high energy at E > 40 GeV in an FSRQ providing evidence of emission constricted to outer boundaries of BLR. The remnant of extra absorption feature on the top of the usual expected Extragalactic Background light influence at such high energies provides hints of high-energy gamma-ray dissipation in the inner parsec scale of the jet in the environment of local jet soft photons.
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