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Can Flare Stars Explain the Annihilation Line from the Galactic Bulge?

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We consider the low-mass flare stars which form the bulk of the population in the galactic bulge as a source of the positrons needed to form the observed narrow annihilation line from the galactic bulge. Estimates based on the observed flares in low-mass stars, together with observations of the annihilation line in solar flares, show that the rate of production of positrons in flares in the stars in the bulge may be sufficient to explain the formation of the narrow stationary annihilation line observed from the region of the galactic bulge.

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Authors and Affiliations

  1. Institute of Space Studies, Russian Academy of Sciences, Moscow, Russia

    G. S. Bisnovatyi-Kogan & A. S. Pozanenko

  2. National Research Nuclear University NIYaU MIFI, Moscow, Russia

    G. S. Bisnovatyi-Kogan & A. S. Pozanenko

Authors
  1. G. S. Bisnovatyi-Kogan
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  2. A. S. Pozanenko
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Correspondence to G. S. Bisnovatyi-Kogan.

Additional information

Translated from Astrofizika, Vol. 60, No. 2, pp. 243-248 (May 2017).

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Bisnovatyi-Kogan, G.S., Pozanenko, A.S. Can Flare Stars Explain the Annihilation Line from the Galactic Bulge?. Astrophysics 60, 223–227 (2017). https://doi.org/10.1007/s10511-017-9477-6

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  • DOI: https://doi.org/10.1007/s10511-017-9477-6

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