Thermonuclear burning ignition and propagation in surface layers of neutron stars. 2. Multi-zone model with mass inflow

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• 作者：D. A. Gryaznykh
• 关键词：X ; ray bursts ; thermonuclear reactions
• 刊名：Astronomy Letters
• 出版年：2013
• 出版时间：September 2013
• 年：2013
• 卷：39
• 期：9
• 页码：602-618
• 全文大小：785KB
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• 作者单位：D. A. Gryaznykh (1)
  
  1. Russian Federal Nuclear Center—Zababakhin Institute for Technical Physics, P. O. Box 245, Snezhinsk, 454070, Russia
  
• ISSN：1562-6873

文摘

To study thermonuclear burning ignition and propagation in surface layers of neutron stars we develop a multi-zone model of a thin layer dynamics. It takes into account evolution of the layer composition due to flow of matter (accretion) and thermonuclear reactions. Two simplest variants—one-zone single-component and two-zone two-component models—enable to study qualitatively X-ray bursts dynamics for accretion of pure helium matter or hydrogen, helium and heavier elements mixture. Temporal parameters of X-ray bursts are determined from these models. They are compared with observational data.