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Second-order Fermi acceleration as the origin of the Fermi bubbles

Abstract:

Gamma-ray data from Fermi-LAT show a bi-lobular structure extending up to 50° above and below the Galactic centre, coincident with a possibly related structure in the ROSAT X-ray map which presumably originated in some energy release close to the centre a few million years ago. It has been argued that the gamma-rays arise due to inverse Compton scattering of relativistic electrons accelerated at plasma shocks present in the bubbles. We explore the alternative possibility that the relativistic...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1016/j.nima.2011.12.105

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Institution:
University of Oxford
Oxford college:
Linacre College
Role:
Author
Publisher:
Elsevier Publisher's website
Journal:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment Journal website
Volume:
692
Pages:
265-268
Host title:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Publication date:
2012-01-21
DOI:
EISSN:
1872-9576
ISSN:
0168-9002
Source identifiers:
365088
Keywords:
Pubs id:
pubs:365088
UUID:
uuid:3f726e9c-6421-4689-bac1-61f91ea2f1ab
Local pid:
pubs:365088
Deposit date:
2017-06-02

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