| Descript |
142 p |
| Note |
Source: Dissertation Abstracts International, Volume: 65-03, Section: B, page: 1366 |
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Director: Lev Titarchuk |
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Thesis (Ph.D.)--George Mason University, 2004 |
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The processes of spectral formation in the atmosphere of neutron star during Type I X-ray burst is considered in detail. Separate treatment is presented for expansion and decay stages. Special effort is made to develop self-consistent models, applicable for data analysis. All crucial physical factors are accounted for including Comptonization, free-free absorption and emission. Newton gravity is assumed. Analytical expressions are provided for color temperature hardening/softening factors. Spectral shapes are presented as functions of input parameters, i.e. neutron star mass and radius, chemical conmposition of an atmosphere and source distance. Models are applied to observational data in order to constrain neutron star mass-radius relation. X-ray burst data for bursters 4U 1728--34, 4U 1820--30, Cygnus X-2, EXO 0748--676 and GS 1826--24 collected by Rossi X-ray Timing Explorer is used |
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School code: 0883 |
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DDC |
| Host Item |
Dissertation Abstracts International 65-03B
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| Subject |
Physics, Astronomy and Astrophysics
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0606
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| Alt Author |
George Mason University
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