What is the Cosmic-Ray Luminosity of Our Galaxy? | Zendy

Ar Dar | Zendy; A. De Rújula | Zendy

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What is the Cosmic-Ray Luminosity of Our Galaxy?

Author(s) -

Ar Dar,

A. De Rújula

Publication year - 2001

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/318876

Subject(s) - physics , cosmic ray , luminosity , astrophysics , milky way , galaxy , cosmic cancer database , astronomy , nuclide , nuclear physics

The total cosmic-ray luminosity of the Galaxy is an important constraint onmodels of cosmic-ray generation. The diffuse high energy $\gamma$-ray andradio-synchrotron emissions of the Milky Way are used to derive thisluminosity. The result is almost two orders of magnitude larger than thestandard estimate, based on the observed isotopic abundances of cosmic raynuclides. We discuss the plausible interpretation of this discrepancy and thepossible origin of such a relatively large luminosity.Comment: 10 pages,no figures, late

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