Effect of Supernovae on the Local Interstellar Material
Effect of Supernovae on the Local Interstellar Material
复制标题
超新星对局部星际物质的影响
DOI：
10.1007/978-3-319-21846-5_13
复制
发表时间：
2018
期刊：
影响因子：
--
通讯作者：
V. Dwarkadas
中科院分区：
文献类型：
--
作者：
P. Frisch;V. Dwarkadas
一系列天文数据表明，古代超新星创造了太阳的银河系环境，并塑造了日光层附近星际介质的物理特性。在本文中，我们回顾了已被超新星影响的本地星际介质的特性。最近的星际物质的运动学、磁场、元素丰度和配置支持太阳位于Loop I超级气泡边缘的观点，Loop I超级气泡已经并入低密度的Local Bubble。局部气泡中的高温X射线等离子体的能量来源尚不确定。来自大质量恒星和附近超新星的风，可能来自斯科-岑星协，可能贡献了地质记录和银河宇宙射线群中发现的放射性同位素。猎户座和天蝎座区域的嵌套超新星壳层表明了空间上不同的星星形成地点。日球层的性质随周围星际云的压力而变化。附近的超新星将改变这种压力平衡，从而严重破坏日光层以及当地的星际介质。
A range of astronomical data indicates that ancient supernovae created the galactic environment of the Sun and sculpted the physical properties of the interstellar medium near the heliosphere. In this paper we review the characteristics of the local interstellar medium that have been affected by supernovae. The kinematics, magnetic field, elemental abundances, and configuration of the nearest interstellar material support the view that the Sun is at the edge of the Loop I superbubble, which has merged into the low density Local Bubble. The energy source for the higher temperature X-ray emitting plasma pervading the Local Bubble is uncertain. Winds from massive stars and nearby supernovae, perhaps from the Sco-Cen Association, may have contributed radioisotopes found in the geologic record and galactic cosmic ray population. Nested supernova shells in the Orion and Sco-Cen regions suggest spatially distinct sites of episodic star formation. The heliosphere properties vary with the pressure of the surrounding interstellar cloud. A nearby supernova would modify this pressure equilibrium and thereby severely disrupt the heliosphere as well as the local interstellar medium.
影响因子：
56.9
作者：
Altobelli, N.;Postberg, F.;Gruen, E.
通讯作者：
Gruen, E.