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.

引用

页数：11

共 42 条

[41] Atom-Rydberg-atom chemi-ionization processes in solar and DB white-dwarf atmospheres in the presence of (n - n')-mixing channels
Mihajlov, A. A.
Sreckovic, V. A.
Ignjatovic, Lj. M.
Dimitrijevic, M. S.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2016, 458 (02) : 2215 - 2220
[42] Non-adiabatic wavepacket dynamics for charge-exchange processes in ion-atom collisions:: application to C4++H
Vaeck, N
Desouter-Lecomte, M
Liévin, J
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1999, 32 (02) : 409 - 428

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