Title:	Cosmic ray antiprotons from nearby cosmic accelerators
Authors:	Joshi, Jagdish C. Gupta, Nayantara
Issue Date:	May-2015
Publisher:	Elsevier B.V.
Citation:	Astroparticle Physics, 2015, Vol.65, p108-110
Abstract:	The antiproton flux measured by PAMELA experiment might have originated from Galactic sources of cosmic rays. These antiprotons are expected to be produced in the interactions of cosmic ray protons and nuclei with cold protons. Gamma rays are also produced in similar interactions inside some of the cosmic accelerators. We consider a few nearby supernova remnants observed by Fermi LAT. Many of them are associated with molecular clouds. Gamma rays have been detected from these sources which most likely originate in decay of neutral pions produced in hadronic interactions. The observed gamma ray fluxes from these SNRs are used to find out their contributions to the observed diffuse cosmic ray antiproton flux near the earth.
Description:	Restricted Access. An open-access version is available at arXiv.org (one of the alternative locations)
URI:	http://hdl.handle.net/2289/6246
ISSN:	0927-6505
Alternative Location:	http://adsabs.harvard.edu/abs/2015APh....65..108J http://arxiv.org/abs/1411.5176 http://dx.doi.org/10.1016/j.astropartphys.2014.12.012
Copyright:	20115 Elsevier B.V.
Appears in Collections:	Research Papers (A&A)

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