Synchrotron Emission From Young And Nearby Pulsars

Autor:	Kelso, Christopher M., Hooper, Dan
Rok vydání:	2010
Předmět:	Astrophysics - High Energy Astrophysical Phenomena Astrophysics - Cosmology and Nongalactic Astrophysics High Energy Physics - Phenomenology
Zdroj:	JCAP 1005:039,2010
Druh dokumentu:	Working Paper
DOI:	10.1088/1475-7516/2010/05/039
Popis:	The rising cosmic ray positron fraction reported by the PAMELA collaboration has lead to a great deal of interest in astrophysical sources of energetic electrons and positrons, including pulsars. In this paper, we calculate the spectrum of synchrotron emission from electrons and positrons injected from 376 young pulsars (<10^6 years) contained in the ATNF catalog, and compare our results to observations. We find that if objects such as the Vela and Crab pulsars have injected ~10^48 erg or more in energetic electrons and/or positrons, they are expected to produce bright and distinctive features in the synchrotron sky. Intriguingly, we predict hard synchrotron emission from these regions of the sky which is qualitatively similar to that observed by WMAP. Comment: 11 pages, 4 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1001.1749 Zobrazit plný text záznamu View this record from Arxiv