BIMA SONG 条状结构中的分子气体与星形成
天体物理学
2007-05-23 v1
摘要
本文基于来自 BIMA 近距离星系调查 (SONG) 的 7 个条状螺旋星系样本，比较了条状内的分子气体分布与近期大质量星形成活动。所有 7 个星系中，H-alpha 信号相对于 CO 信号在下游方向上偏移。最大偏移量（位于条状末端）范围为 170--570 pc，平均值为 320±120 pc。我们讨论了观察到的偏移是否符合通过 n-body 模型和流体动力学模型所描述的气体在条状中的流动。
关键词
引用
@article{arxiv.astro-ph/0008088,
title = {Molecular gas and star formation in BIMA SONG bars},
author = {Kartik Sheth and Stuart N. Vogel and Andrew I. Harris and Michael W. Regan and Michele D. Thornley and Tamara T. Helfer and Tony Wong and Leo Blitz and Douglas C. -J. Bock},
journal= {arXiv preprint arXiv:astro-ph/0008088},
year = {2007}
}
备注
Presented at "Galaxy Disks and Disk Galaxies" conference (June 12-16, Rome, Italy), 2 pages, to appear in APS Conference Series. The entire poster (13.6 MB) can be downloaded from http://bima.astro.umd.edu/projects/bimasong/pubs/romeposter.ps