A BIMA CO (J=1-0) survey of seven barred galaxies

Details A BIMA CO (J=1-0) survey of seven barred galaxies A BIMA CO (J=1-0) survey of seven barred galaxies

Dec 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aas...191.8216s&link_type=abstract

American Astronomical Society, 191st AAS Meeting, #82.16; Bulletin of the American Astronomical Society, Vol. 29, p.1345

Astronomy and Astrophysics

Astronomy

Scientific paper

We present observations of seven barred galaxies observed with BIMA (Berkeley-Illinois-Maryland Array) in the CO (J=1-0) line emission. In all seven galaxies, CO spectra show the presence of high velocity (higher than circular velocity) streaming gas; this gas appears to be confined to the dust lanes and flows from the galactic disk towards the center. At least some of the high velocity gas overshoots the central concentration of CO and sprays back into the bar. The presence of this phenomenon is consistent with the predictions of Regan et al.(1997). In addition to the high velocity, dust lane gas, spectra reveal the presence of lower velocity gas which may be identified with gas on circular orbits inside the inner Lindblad resonance (ILR).

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