Hostname: page-component-cd9895bd7-q99xh Total loading time: 0 Render date: 2025-01-05T12:26:45.327Z Has data issue: false hasContentIssue false
  • English
  • Français

Cosmic Ray Positron Production by Gamma Ray Interactions on Starlight

Published online by Cambridge University Press:  25 April 2016

A. Mastichiadis ,
R. J. Protheroe  and
S. A. Stephens
A. Mastichiadis
Affiliation:
Department of Physics and Mathematical Physics, University of Adelaide, SA 5001
R. J. Protheroe
Affiliation:
Department of Physics and Mathematical Physics, University of Adelaide, SA 5001
S. A. Stephens
Affiliation:
Tata Institute of Fundamental Research, Bombay, India
Get access Rights & Permissions [Opens in a new window]

Abstract

We examine the production of cosmic ray positrons by photon-photon pair production of high-energy γ-rays on starlight photons. We start by calculating the production rate as a function of positron energy and distance from the Sun resulting from interactions with sunlight. The results are generalized to production on other types of star. We calculate the average production rate per unit volume averaged over the local region of the galaxy, and we estimate the contribution to the observed intensity from this process.

Type
High Energy Astrophysics
Information
Publications of the Astronomical Society of Australia , Volume 9 , Issue 1 , 1991 , pp. 115 - 117
Copyright
Copyright © Astronomical Society of Australia 1991

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Aharonian, F. A. and Atoyan, A. M., 1990, Proc. 21st Int. Cosmic Ray Conf., Adelaide, 3, 269.Google Scholar
Allen, C. W., 1973, Astrophysical Quantities, Athlone Press, London.Google Scholar
Bloeman, H., 1989, Annu. Rev. Astron. Astrophys., 27, 469.CrossRefGoogle Scholar
Evenson, P. et al., 1990, Proc. 21st Int. Cosmic Ray Conf., Adelaide, 3, 265.Google Scholar
Fichtel, C. E. et al., 1978, Astrophys. J., 222, 833.CrossRefGoogle Scholar
Golden, R. L. et al., 1987, Astron. Astrophys., 188, 145.Google Scholar
Harding, A. K. and Ramaty, R., 1987, Proc. 20th Int. Cosmic Ray Conf., Moscow, 2, 92.Google Scholar
Jones, W. V., 1990, Proc. 21st Int. Cosmic Ray Conf., Adelaide, 12, 136.Google Scholar
Mastichiadis, A., 1986, Astron. Astrophys., 169, 373.Google Scholar
Protheroe, R. J., 1982, Astrophys. J., 254, 391.CrossRefGoogle Scholar
Protheroe, R. J., 1986, Mon. Not. R. Astr. Soc., 221, 796.Google Scholar
Protheroe, R. J. and Stanev, , 1987, Astrophys. J., 322, 838.CrossRefGoogle Scholar
Rand, R. J. and Kulkami, S. R., 1989, Astrophys. J., 343, 760.CrossRefGoogle Scholar
Rudaz, S. and Stecker, F. W., 1988, Astrophys. J., 325, 16.CrossRefGoogle Scholar
Stephens, S. A., 1981, Nature, 289, 267.CrossRefGoogle Scholar