dc.contributor.author |
Mohan Rao, D |
|
dc.contributor.author |
Rangarajan, K. E |
|
dc.contributor.author |
Peraiah, A |
|
dc.date.accessioned |
2008-09-16T14:56:19Z |
|
dc.date.available |
2008-09-16T14:56:19Z |
|
dc.date.issued |
1990-08 |
|
dc.identifier.citation |
Astrophysical Journal, Part 1 , Vol. 358, No.2, pp. 622 - 636 |
en |
dc.identifier.issn |
0004-637X |
|
dc.identifier.uri |
http://hdl.handle.net/2248/3664 |
|
dc.description.abstract |
The time-dependent transfer equation is derived for a two-level atomic model which takes both bound-bound and bound-free transitions into account. A numerical scheme is proposed for solving the monochromatic time-dependent transfer equation when the time spent by the photon in the absorbed state is significant. The method can be easily extended to solve the problem of time-dependent line formation of the bound-free continuum. It is used here to study three types of boundary conditions of the incident radiation incident on a scattering atmosphere. The quantitative results show that the relaxation of the radiation field depends on the optical depth of the medium and on the ray's angle of emergence. |
en |
dc.language.iso |
en |
en |
dc.publisher |
The American Astronomical Society |
en |
dc.relation.uri |
http://ads.ari.uni-heidelberg.de/abs/1990ApJ...358..622R |
en |
dc.subject |
Pulsed radiation |
en |
dc.subject |
Absorptiometry |
en |
dc.subject |
Atomic interactions |
en |
dc.subject |
Photon |
en |
dc.subject |
Radiation transport |
en |
dc.subject |
Time dependence |
en |
dc.subject |
Accretion disks |
en |
dc.subject |
Active galactic nuclei |
en |
dc.subject |
Mean free path |
en |
dc.subject |
Supernovae |
en |
dc.subject |
Transfer functions |
en |
dc.title |
Effect of the time spent by the photon in the absorbed state on the time-dependent transfer of radiation |
en |
dc.type |
Article |
en |