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arXiv 1104.2916astro-ph.HE
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金牛T星的高能辐射

High-energy radiation from T Tauri stars

Gustavo E. Romero, María V. del Valle, Josep Martí, Pedro Luque-Escamilla

摘要:

金牛座T星是年轻的低质量前主序星,被吸积盘包围。这些天体呈现出强烈的磁活动和强大的磁重联事件。这种事件和加速到相对论能量的带电粒子可能会在恒星磁层中产生强烈的冲击。我们提出了一个简单的模型,在金牛T星的高能粒子产生的非热辐射。我们将讨论这种发射是否可以用现有的伽马射线望远镜在高能量下探测到。

英文摘要:

T Tauri stars are young, low mass, pre-main sequence stars surrounded by an accretion disk. These objects present strong magnetic activity and powerful magnetic reconnection events. Strong shocks are likely produced in the stellar magnetosphere by such events and charged particles accelerated up to relativistic energies. We present a simple model for the non-thermal radiation generated by high-energy particles in T Tauri stars. We discuss whether this emission is detectable at high energies with the available gamma-ray telescopes.

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