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A change in the optical polarization associated with a gamma-ray flare in the blazar 3C 279

It is widely accepted that strong and variable radiation detected over all accessible energy bands in a number of active galaxies arises from a relativistic, Doppler-boosted jet pointing close to our line of sight. The size of the emitting zone and the location of this region relative to the central... Full description

Journal Title: arXiv.org Apr 22, 2010
Main Author: The Fermi-Lat Collaboration
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: DOI: 10.1038/nature08841
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recordid: proquest2087639661
title: A change in the optical polarization associated with a gamma-ray flare in the blazar 3C 279
format: Article
creator:
  • The Fermi-Lat Collaboration
subjects:
  • Gamma Rays
  • Energy Bands
  • Emission
  • Gamma Rays
  • Energy Dissipation
  • Optical Polarization
  • Active Galaxies
  • Black Holes
  • Cosmology and Nongalactic Astrophysics
  • High Energy Astrophysical Phenomena
ispartof: arXiv.org, Apr 22, 2010
description: It is widely accepted that strong and variable radiation detected over all accessible energy bands in a number of active galaxies arises from a relativistic, Doppler-boosted jet pointing close to our line of sight. The size of the emitting zone and the location of this region relative to the central supermassive black hole are, however, poorly known, with estimates ranging from light-hours to a light-year or more. Here we report the coincidence of a gamma-ray flare with a dramatic change of optical polarization angle. This provides evidence for co-spatiality of optical and gamma-ray emission regions and indicates a highly ordered jet magnetic field. The results also require a non-axisymmetric structure of the emission zone, implying a curved trajectory for the emitting material within the jet, with the dissipation region located at a considerable distance from the black hole, at about 10^5 gravitational radii.
language: eng
source:
identifier: DOI: 10.1038/nature08841
fulltext: fulltext_linktorsrc
url: Link


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titleA change in the optical polarization associated with a gamma-ray flare in the blazar 3C 279
creatorThe Fermi-Lat Collaboration
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ispartofarXiv.org, Apr 22, 2010
identifierDOI: 10.1038/nature08841
subjectGamma Rays ; Energy Bands ; Emission ; Gamma Rays ; Energy Dissipation ; Optical Polarization ; Active Galaxies ; Black Holes ; Cosmology and Nongalactic Astrophysics ; High Energy Astrophysical Phenomena
descriptionIt is widely accepted that strong and variable radiation detected over all accessible energy bands in a number of active galaxies arises from a relativistic, Doppler-boosted jet pointing close to our line of sight. The size of the emitting zone and the location of this region relative to the central supermassive black hole are, however, poorly known, with estimates ranging from light-hours to a light-year or more. Here we report the coincidence of a gamma-ray flare with a dramatic change of optical polarization angle. This provides evidence for co-spatiality of optical and gamma-ray emission regions and indicates a highly ordered jet magnetic field. The results also require a non-axisymmetric structure of the emission zone, implying a curved trajectory for the emitting material within the jet, with the dissipation region located at a considerable distance from the black hole, at about 10^5 gravitational radii.
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titleA change in the optical polarization associated with a gamma-ray flare in the blazar 3C 279
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abstractIt is widely accepted that strong and variable radiation detected over all accessible energy bands in a number of active galaxies arises from a relativistic, Doppler-boosted jet pointing close to our line of sight. The size of the emitting zone and the location of this region relative to the central supermassive black hole are, however, poorly known, with estimates ranging from light-hours to a light-year or more. Here we report the coincidence of a gamma-ray flare with a dramatic change of optical polarization angle. This provides evidence for co-spatiality of optical and gamma-ray emission regions and indicates a highly ordered jet magnetic field. The results also require a non-axisymmetric structure of the emission zone, implying a curved trajectory for the emitting material within the jet, with the dissipation region located at a considerable distance from the black hole, at about 10^5 gravitational radii.
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pubCornell University Library, arXiv.org
doi10.1038/nature08841
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date2010-02-18