Upper limits on TeV gamma-ray emission from active galactic nuclei

The results of a search for TeV gamma-ray emission from 35 active galactic nuclei (AGNs) using the Whippie Observatory High Resolution Atmospheric Cerenkov Camera are reported. Fifteen of these objects have been detected at GeV energies by the EGRET experiment on the Compton Gamma Ray Observatory. N...

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Guardado en:
Detalles Bibliográficos
Publicado: 1995
Materias:
Galaxies: active
Galaxies: nuclei
Gamma rays: observations
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0004637X_v452_n2_p588_Kerrick
http://hdl.handle.net/20.500.12110/paper_0004637X_v452_n2_p588_Kerrick
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_0004637X_v452_n2_p588_Kerrick
record_format dspace
spelling paper:paper_0004637X_v452_n2_p588_Kerrick2023-06-08T14:28:34Z Upper limits on TeV gamma-ray emission from active galactic nuclei Galaxies: active Galaxies: nuclei Gamma rays: observations The results of a search for TeV gamma-ray emission from 35 active galactic nuclei (AGNs) using the Whippie Observatory High Resolution Atmospheric Cerenkov Camera are reported. Fifteen of these objects have been detected at GeV energies by the EGRET experiment on the Compton Gamma Ray Observatory. None of the 35 objects gave a signal at the 3 σ level; Mrk 421 remains the only AGN detected at TeV energies. The absence of a TeV signal may imply a change in the primary source spectrum and/or the effect of absorption by pair production on intergalactic infrared photons. 1995 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0004637X_v452_n2_p588_Kerrick http://hdl.handle.net/20.500.12110/paper_0004637X_v452_n2_p588_Kerrick
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Galaxies: active
Galaxies: nuclei
Gamma rays: observations
spellingShingle Galaxies: active
Galaxies: nuclei
Gamma rays: observations
Upper limits on TeV gamma-ray emission from active galactic nuclei
topic_facet Galaxies: active
Galaxies: nuclei
Gamma rays: observations
description The results of a search for TeV gamma-ray emission from 35 active galactic nuclei (AGNs) using the Whippie Observatory High Resolution Atmospheric Cerenkov Camera are reported. Fifteen of these objects have been detected at GeV energies by the EGRET experiment on the Compton Gamma Ray Observatory. None of the 35 objects gave a signal at the 3 σ level; Mrk 421 remains the only AGN detected at TeV energies. The absence of a TeV signal may imply a change in the primary source spectrum and/or the effect of absorption by pair production on intergalactic infrared photons.
title Upper limits on TeV gamma-ray emission from active galactic nuclei
title_short Upper limits on TeV gamma-ray emission from active galactic nuclei
title_full Upper limits on TeV gamma-ray emission from active galactic nuclei
title_fullStr Upper limits on TeV gamma-ray emission from active galactic nuclei
title_full_unstemmed Upper limits on TeV gamma-ray emission from active galactic nuclei
title_sort upper limits on tev gamma-ray emission from active galactic nuclei
publishDate 1995
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0004637X_v452_n2_p588_Kerrick
http://hdl.handle.net/20.500.12110/paper_0004637X_v452_n2_p588_Kerrick
_version_ 1768543257332023296

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