Radiative transfer in moving media -: II.: Solution of the radiative transfer equation in axial symmetry

被引：17
作者：
Korcáková, D [1 ]
Kubát, J [1 ]
机构：
[1] Akad Ved Ceske Republ, CS-25165 Ondrejov, Czech Republic
来源：
ASTRONOMY & ASTROPHYSICS | 2005年 / 440卷 / 02期
关键词：
radiative transfer; line : formation; line : profiles;
D O I：
10.1051/0004-6361:20041992
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
A new method for the formal solution of the 2D radiative transfer equation in axial symmetry in the presence of arbitrary velocity fields is presented. The combination of long and short characteristics methods is used to solve the radiative transfer equation. We include the velocity field in detail using the Local Lorentz Transformation. This allows us to obtain a significantly better description of the photospheric region, where the gradient of the global velocity is too small for the Sobolev approximation to be valid. Sample test calculations for the case of a stellar wind and a rotating atmosphere are presented.
引用
收藏
页码：715 / 725
页数：11
相关论文
共 44 条
[1]  
Allen CW, 1963, ASTROPHYSICAL QUANTI
[2]  
[Anonymous], 1986, NUMERICAL RECIPES C
[3]  
Auer L, 2003, ASTR SOC P, V288, P405
[4]  
Auer L, 2003, ASTR SOC P, V288, P3
[5]  
Bendicho PF, 2003, ASTR SOC P, V288, P419
[6]  
BOISSE P, 1990, ASTRON ASTROPHYS, V228, P483
[7]   LINE TRANSFER IN .2. DIMENSIONS [J].
CANNON, CJ .
ASTROPHYSICAL JOURNAL, 1970, 161 (01) :255-+
[8]  
Carlsson M, 2003, ASTR SOC P, V288, P505
[9]   The spinning-top Be star Achernar from VLTI-VINCI [J].
de Souza, AD ;
Kervella, P ;
Jankov, S ;
Abe, L ;
Vakili, F ;
di Folco, E ;
Paresce, F .
ASTRONOMY & ASTROPHYSICS, 2003, 407 (03) :L47-L50
[10]  
Dullemond CP, 2000, ASTRON ASTROPHYS, V360, P1187
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