Positron annihilation signatures associated with the outburst of the microquasar V404 Cygni

Thomas Siegert (), Roland Diehl, Jochen Greiner, Martin G. H. Krause, Andrei M. Beloborodov, Marion Cadolle Bel, Fabrizia Guglielmetti, Jerome Rodriguez, Andrew W. Strong and Xiaoling Zhang
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Thomas Siegert: Max-Planck-Institut für extraterrestrische Physik
Roland Diehl: Max-Planck-Institut für extraterrestrische Physik
Jochen Greiner: Max-Planck-Institut für extraterrestrische Physik
Martin G. H. Krause: Max-Planck-Institut für extraterrestrische Physik
Andrei M. Beloborodov: Columbia University
Marion Cadolle Bel: Max Planck Computing and Data Facility
Fabrizia Guglielmetti: Max-Planck-Institut für extraterrestrische Physik
Jerome Rodriguez: Laboratoire Astrophysique Instrumentation Modélisation, UMR 7158, CEA/CNRS/Université Paris Diderot, CEA DSM/IRFU/SAp
Andrew W. Strong: Max-Planck-Institut für extraterrestrische Physik
Xiaoling Zhang: Max-Planck-Institut für extraterrestrische Physik

Nature, 2016, vol. 531, issue 7594, 341-343

Abstract: Observations of γ-ray emission from the microquasar V404 Cygni during a recent period of strong flaring activity show spectral features at around 511 kiloelectronvolts, which are clear signatures of variable positron annihilation, implying a high rate of positron production.

Date: 2016
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DOI: 10.1038/nature16978

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