论文标题
在Starburst驱动的风中的高能过程
High-energy processes in starburst-driven winds
论文作者
论文摘要
Starburst星系产生的大规模风，由位于银河磁盘中的星形区域的活动提供动力。风爆发产生的磁盘的碎片导致云的形成。由超音速流出引起的弓箭出现在这样的云周围。在本文中，我们讨论了相对论颗粒的加速度以及在这种情况下的非热辐射的产生。尽管产生的高能发光度很明显，但在弓箭上加速的宇宙射线仍未达到最高能量。我们表明，在星空磁盘之外，这些来源中，大约有大约10％的伽马射线排放量可能来自银河系。还期望具有幂律组件的离散X射线源。
Starburst galaxies generate large-scale winds powered by the activity in the star-forming regions located in the galactic disks. Fragmentation of the disk produced by the outbreak of the wind results in the formation of clouds. Bowshocks caused by the supersonic outflow appear around such clouds. In this paper we discuss the acceleration of relativistic particles and the production of non-thermal radiation in such scenario. Cosmic rays accelerated at the bowshocks do not reach the highest energies, although the high-energy luminosity generated is significant. We show that up to ~10% of the gamma-ray emission in starbursts might come from these sources outside the galactic disks. Discrete X-ray sources with a power-law component are also expected.
