从外部看待的暗核:QSO吸收线
天体物理学
2007-05-23 v1
摘要
对高分辨率雷星吸收线(QALs)的研究,这些吸收线源自局部和z < 1.5星系中的气体,为对银河系样似星系的运动学、化学和电离条件及演化提供了直接探针。基于这些研究所得的推断为基于直接银河系暗核研究提供了强大的类比。观察到的气体运动学和速度演化揭示,银河系暗核是复杂动力学组成,符合Searle--Zinn形成情景。
关键词
引用
@article{arxiv.astro-ph/9601128,
title = {The Halo from the Outside In: QSO Absorption Lines},
author = {Christopher W. Churchill and Steven S. Vogt},
journal= {arXiv preprint arXiv:astro-ph/9601128},
year = {2007}
}
备注
4 pages, Latex file, and 2 PostScript figures; To appear in Formation of the Galactic Halo... Inside and Out, eds. H. Morrison & A. Sarajedini (PASP Conference Series); Available as a single compressed PostScript file at http://www.ucolick.org/~cwc/qso/abstract.html