Helium-rich white dwarf atmospheres: the non-symmetric ion-atom absorption processes

被引：0
|
作者：
Sreckovic, V. A. [1 ]
Mihajlov, A. A. [1 ]
Mignjatovic, Lj [1 ]
Dimitrijevic, M. S. [2 ,3 ,4 ]
机构：
[1] Univ Belgrade, Inst Phys, POB 57, Belgrade 11001, Serbia
[2] Astron Observ, Volgina, Serbia
[3] IHIS Technoexperts, Zemun, Serbia
[4] Observ Paris, F-92195 Paris, France
来源：
27TH SUMMER SCHOOL AND INTERNATIONAL SYMPOSIUM ON THE PHYSICS OF IONIZED GASES (SPIG 2014) | 2014年 / 565卷
关键词：
HEH+ MOLECULAR ION; CONFIGURATION-INTERACTION; DB;
D O I：
10.1088/1742-6596/565/1/012022
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Here, the processes of photo-association and absorption charge-exchange in He+H+ collisions together with the process of molecular ion HeH+ photo-dissociation are considered as factors of influence on the opacity of the atmospheres of helium-rich white dwarfs in the far UV region. It is shown that they should be taken into account even in the cases of the atmospheres of white dwarfs with H:He =10(-5). Also, it is established that in the cases of white dwarfs with H:He greater than or similar to 10(-4), especially when H:He approximate to 10(-3), these processes have to be included ab initio in the corresponding models of their atmospheres.
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页数：11
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