On the Evolution of Hydrogen-Deficient White Dwarfs

被引：0

作者：

Camisassa, M. E. ^{[1
]}

Althaus, L. G. ^{[1
]}

Rohrmann, R. D. ^{[2
]}

Garcia-Berro, E. ^{[3
,4
]}

Corsico, A. H. ^{[1
]}

机构：

[1] Univ Nacl La Plata, Fac Ciencias Astron & Geofis, Paseo del Bosque S-N, RA-1900 La Plata, Buenos Aires, Argentina

[2] CONICET UNSJ, Inst Ciencias Astron Tierra & Espacio, Ave Espana Sur 1512,J5402DSP, San Juan, Argentina

[3] Univ Politecn Cataluna, Dept Fis, C Esteve Terrades 5, Castelldefels 08860, Spain

[4] Inst Space Studies Catalonia, C Gran Capita 2-4,Edif Nexus 201, Barcelona 08034, Spain

来源：

20TH EUROPEAN WHITE DWARF WORKSHOP | 2017年 / 509卷

关键词：

COOLING SEQUENCES; GLOBULAR-CLUSTER; AGE; POPULATION; UNIVERSE; STARS;

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present full evolutionary calculations for hydrogen-deficient white dwarfs. We take into account the evolutionary history of the progenitor stars, all relevant energy sources, element diffusion, and outer boundary conditions provided by new and detailed non-gray white dwarf model atmospheres for pure helium composition. Model atmospheres are based on the most up-to-date physical inputs. The calculations are extended down to an effective temperature of 2500 K. Our calculations provide a homogeneous set of evolutionary cooling tracks appropriate for mass and age determinations of old hydrogen-deficient white dwarfs.

引用

页码：429 / 434

页数：6

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