Molecular gas and star formation in BIMA SONG bars
Abstract
Using a sample of 7 barred spirals from the BIMA Survey of Nearby Galaxies (SONG), we compare the molecular gas distribution in the bar, to recent massive star formation activity. In all 7 galaxies, Halpha is offset azimuthally from the CO on the downstream side. The maximum offset, at the bar ends, ranges from 170-570 pc, with an average of 320 +/- 120 pc. We discuss whether the observed offsets are consistent with the description of gas flows in bars provided by the two main classes of models: n-body models and hydrodynamic models. This work is supported by NSF grants AST 9981289, AST 9981308.
Cite
@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}
}
Comments
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