论文标题
He-shell在氧气neon白色矮人的表面上闪烁
He-shell flashes on the surface of oxygen-neon white dwarfs
论文作者
论文摘要
Accretion induced collapse (AIC) may be responsible for the formation of some interesting neutron star binaries, e.g., millisecond pulsars, intermediate-mass binary pulsars, etc. It has been suggested that oxygen-neon white dwarfs (ONe WDs) can increase their mass to the Chandrasekhar limit by multiple He-shell flashes, leading to AIC events.但是，在一个WD的表面上，He-Shell闪烁的特性仍然不太了解。在本文中，我们旨在以系统的方法在一个WD的表面上研究He-Shell闪烁。我们通过时间依赖性计算，通过各种恒定的质量计算速率来研究一个WD的长期演变，其恒星演化代码模块用于恒星天体物理学（MESA）的实验，其中最初的一个WD质量范围为1.1至1.35 m。我们发现，质量级别的效率随一wd质量和质量量的速率而提高，而Nova循环持续时间和点火质量都随着一个WD质量和质量差速率而降低。我们还在不同的积聚方案中介绍了核产品。本文介绍的结果可用于未来的AIC事件的二元种群综合研究。
Accretion induced collapse (AIC) may be responsible for the formation of some interesting neutron star binaries, e.g., millisecond pulsars, intermediate-mass binary pulsars, etc. It has been suggested that oxygen-neon white dwarfs (ONe WDs) can increase their mass to the Chandrasekhar limit by multiple He-shell flashes, leading to AIC events. However, the properties of He-shell flashes on the surface of ONe WDs are still not well understood. In this article, we aim to study He-shell flashes on the surface of ONe WDs in a systematic approach. We investigated the long-term evolution of ONe WDs accreting He-rich material with various constant mass-accretion rates by time-dependent calculations with the stellar evolution code Modules for Experiments in Stellar Astrophysics (MESA), in which the initial ONe WD masses range from 1.1 to 1.35 M . We found that the mass-retention efficiency increases with the ONe WD mass and the mass-accretion rate, whereas both the nova cycle duration and the ignition mass decrease with the ONe WD mass and the mass-accretion rate. We also present the nuclear products in different accretion scenarios. The results presented in this article can be used in the future binary population synthesis studies of AIC events.
