Novae Contribution to the Galactic Lithium Enhancement
Novae Contribution to the Galactic Lithium Enhancement
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新星对银河锂增强的贡献
DOI:
10.1088/1538-3873/aa6b4d
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发表时间:
2017-05
影响因子:
3.5
通讯作者:
Zhu Chunhua
中科院分区:
文献类型:
--
作者:
Rukeya Rejiefu;Lu Guoliang;Wang Zhaojun;Zhu Chunhua
We use the Modules for Experiments in Stellar Astrophysics (MESA) code to calculate the yields of 7 Li in the ejecta of classical novae, occurring on the surface of carbon-oxygen (CO) and oxygen-neon-magnesium (ONeMg) white dwarfs (WDs). Taking the masses and the mass accretion rates of WDs as input parameters, this article presents a grid showing the yield of 7 Li from classical novae, including a total of 79 models. Under similar input parameters, the 7 Li yields in our models are consistent with previous ones in the literature. 7 Li yields recently inferred spectroscopically from classical nova V1369 Cen are then compared with the theoretical values obtained in this work. Using the grid as its basis and population synthesis as its method, this paper estimates the amount of 7 Li produced by classical novae compared to the total 7 Li in the Galaxy. Our simulations suggest that novae can eject about 10 − 9 M ⊙ of 7 Li every year. Hence, one may estimate that approximately 10% of 7 Li in the Galaxy originates from classical novae, which is significantly higher than the 7 Li produced by asymptotic giant branch stars.
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影响因子:
0.6
作者:
P. Eggleton;S. Mitton;J. Whelan
通讯作者:
P. Eggleton;S. Mitton;J. Whelan
DOI:
10.1088/2041-8205/808/1/l14
发表时间:
2015-06
期刊:
The Astrophysical Journal Letters
影响因子:
--
作者:
L. Izzo;M. Valle;E. Mason;F. Matteucci;D. Romano;L. Pasquini;L. Vanzi;A. Jordán;J. Fernández;P. Bluhm;R. Brahm;N. Espinoza;Robert Williams
通讯作者:
L. Izzo;M. Valle;E. Mason;F. Matteucci;D. Romano;L. Pasquini;L. Vanzi;A. Jordán;J. Fernández;P. Bluhm;R. Brahm;N. Espinoza;Robert Williams
DOI:
10.1086/168974
发表时间:
1990-07
期刊:
The Astrophysical Journal
影响因子:
--
作者:
M. Kool
通讯作者:
M. Kool
DOI:
10.1046/j.1365-8711.2002.05038.x
发表时间:
2002-01
影响因子:
4.8
作者:
J. Hurley;C. Tout;O. Pols
通讯作者:
J. Hurley;C. Tout;O. Pols
影响因子:
6.4
作者:
A. Coc;J. Uzan;E. Vangioni
通讯作者:
A. Coc;J. Uzan;E. Vangioni