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On the iron interpretation of the 6.4 keV emission line from SGR

โœ Scribed by Alaa I. Ibrahim; Hisham Anwer; Mohamed H. Soliman; Nicholas Mackie-Jones; Kalvir S. Dhuga; William C. Parke; Jean H. Swank; Tilan Ukwatta; M. T. Hussein; T. El-Sherbini


Publisher
Springer Netherlands
Year
2007
Tongue
English
Weight
459 KB
Volume
308
Category
Article
ISSN
0004-640X

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I review our current understanding of positron sources in the Galaxy, on the basis of the reported properties of the observed 511 keV annihilation line. It is argued here that most of the disk positrons propagate away from the disk (due to the low density environment) and the resulting low surface b