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Molecular gas and star formation in BIMA SONG bars | | Kartik Sheth
; Stuart N. Vogel
; Andrew I. Harris
; Michael W. Regan
; Michele D. Thornley
; Tamara T. Helfer
; Tony Wong
; Leo Blitz
; Douglas C.-J. Bock
; | | Date: |
4 Aug 2000 | | Subject: | astro-ph | | Affiliation: | U. Maryland), Michael W. Regan (StScI), Michele D. Thornley (NRAO), Tamara T. Helfer, Tony Wong, Leo Blitz, Douglas C.-J. Bock (UC- Berkeley | | 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. | | Source: | arXiv, astro-ph/0008088 | | Services: | Forum | Review | PDF | Favorites | |
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