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dc.date.accessioned 2022-10-03T12:56:23Z
dc.date.available 2022-10-03T12:56:23Z
dc.date.issued 1990
dc.identifier.uri http://sedici.unlp.edu.ar/handle/10915/143172
dc.description.abstract We have adapted the ETLA code prepared by D. Mihalas and P. Kunasz, (Ap. J. 219, 635, 1978). This code solves, in the comoving-frame, the radiative transfer equation with spherical geometry, in non-LTE, for a seven-level hydrogen atom, given a monotonic increasing velocity law and the temperature law given by C. Catala, P. Kunasz, and F. Praderie (Astron. Astrophys. 134, 402, 1984). From the calculation of theoretical line profile of Hα and Hβ, we observed the influence of a velocity gradient to the features of the profile, taking from P Cygni type profiles to lines with both wings in emission and with a central absorption profile. The influence of the temperature law on the emission profile is negligible for parameters as maximum temperature and cromosphere's extension but depend strongly upon position and temperature of the minimum region temperature place before reaching the maximum. en
dc.language es es
dc.subject Galaxia es
dc.title Line formation in expanding extended atmospheres with spherical geometry en
dc.type Articulo es
sedici.identifier.issn 1669-9521 es
sedici.creator.person Cidale, Lydia Sonia es
sedici.creator.person Ringuelet, Adela Emilia es
sedici.subject.materias Astronomía es
sedici.description.fulltext true es
mods.originInfo.place Asociación Argentina de Astronomía es
sedici.subtype Comunicacion es
sedici.rights.license Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
sedici.rights.uri http://creativecommons.org/licenses/by-nc-sa/4.0/
sedici.relation.journalTitle Boletín de la Asociación Argentina de Astronomía es
sedici.relation.journalVolumeAndIssue no. 36 es
dc.rights.license Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)


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