# Central Engine and Spectral Energy Distribution Properties of High Redshift Gamma Ray Blazars

Source: [Central Engine and Spectral Energy Distribution Properties of High Redshift Gamma Ray Blazars](<https://www.sota2.com/research/paper/68fa46c61e209131ce922f91>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-25T05:59:07.526Z

Authors: A. Tolamatti, K. K. Singh, K. K. Yadav

Published: 2024-03-11T10:20:42.000Z

## Abstract

We report on the properties of central engines in the $\\gamma$-ray blazars located at high redshifts beyond z~\>~0.4, where the extra-galactic background light (EBL) starts affecting their $\\gamma$-ray spectra. The physical engine that provides power to the blazars of very high bolometric luminosity is assumed to be a highly collimated jet of matter moving relativistically away from the supermassive black hole (SMBH), located in the central region of the host galaxy, in a direction aligned toward the Earth. Due to their peculiar geometry and special physical conditions, blazars at redshifts beyond z~\>~0.4 are bright enough to be detected in the $\\gamma$-ray energy band. In this work, we investigate the physical properties of high-$z$ $\\gamma$-ray blazars detected by the Large Area Telescope (LAT) on board the \\emph{Fermi} satellite. We also study the properties of their emission regions and the central engines and discuss cosmological and astrophysical implications.

## Recorded benchmark results

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/2404.03671>)

[PDF](<https://arxiv.org/pdf/2404.03671.pdf>)