dc.contributor.author |
Srinivasa Rao, M |
|
dc.date.accessioned |
2010-07-15T16:45:02Z |
|
dc.date.available |
2010-07-15T16:45:02Z |
|
dc.date.issued |
2010-06 |
|
dc.identifier.citation |
Serbian Astronomical Journal, No. 180, pp. 11 - 18 |
en |
dc.identifier.uri |
http://hdl.handle.net/2248/5196 |
|
dc.description |
Open Access |
en |
dc.description.abstract |
SUMMARY: We have investigated the effects of Compton broadening due to
electron-photon scattering in hot stellar atmospheres. A purely electron-photon
scattering media is assumed to have plane parallel geometry with an input radiation field localized on one side of the slab. The method is based on the discrete
space theory of radiative transfer for the intensity of emitted radiation. The solution is developed to study the importance of scattering of radiation by free electrons
in high temperature stellar atmospheres which produces a broadening and shift in
spectral lines because of the Compton effect and the Doppler effect arising from
mass and thermal motions of scattering electrons. It is noticed that the Comptonized spectrum depends on three parameters: the optical depth of the medium,
the temperature of the thermal electrons and the viewing angle. We also showed
that the Compton effect produces red shift and asymmetry in the line. These two
effects increase as the optical depth increases. It is also noticed that the emergent specific intensities become completely asymmetric for higher optical depths. |
en |
dc.language.iso |
en |
en |
dc.publisher |
Astronomical Observatory, Serbia |
en |
dc.relation.uri |
http://saj.matf.bg.ac.rs/ |
|
dc.subject |
Stars: Atmospheres |
en |
dc.subject |
Radiative Transfer |
en |
dc.subject |
Scattering |
en |
dc.title |
Study of Compton broadening due to electron-photo scattering |
en |
dc.type |
Article |
en |