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Addis Ababa University Libraries Electronic Thesis and Dissertations: AAU-ETD! >
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http://hdl.handle.net/123456789/2226
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| Title: | NEUTRINO EMISSION AND THERMAL HISTORY OF NEUTRON STARS |
| Authors: | Tufa, Lemi |
| Advisors: | Dr. Legesse Wotro |
| Copyright: | Jul-2010 |
| Date Added: | 3-May-2012 |
| Abstract: | Abstract
In this work we have examined the formation of neutron stars (NSs) in the core of a
supernova explosion during the death of massive stars, neutrino emission mechanisms
in the interior of NSs under di erent assumptions on their internal structure, and the
thermal history of NSs by determining neutrino luminosities and the temperature as a
function of time. The emphasis is made on new results such as modi ed Urca process in a
NS core with spherical nuclear structures since both momentum and energy are conserved
in these reactions. Neutrino emission from NS cores containing exotic phases of matter
(pion or kaon condensates,quarks) is also outlined. The e ects of neutrino emission on
thermal histories of NSs , particularly cooling isolated stars, are examined.
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| URI: | http://hdl.handle.net/123456789/2226 |
| Appears in: | Thesis - Physics
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