Molecular Cloud Formation in Disk Galaxies: The Case of M33

Details Molecular Cloud Formation in Disk Galaxies: The Case of M33 Molecular Cloud Formation in Disk Galaxies: The Case of M33

Feb 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004ap%26ss.289..265r&link_type=abstract

Astrophysics and Space Science, v. 289, Issue 3, p. 265-268 (2004).

Astronomy and Astrophysics

Astrophysics

2

Scientific paper

We present results from the BIMA survey of 12CO(1→0)emission from M33. The survey resolves this emission into individualobjects making this study the first unbiased, complete census of giantmolecular clouds (GMCs) in a spiral galaxy. The GMCs are clearlyassociated with dense atomic gas, suggesting formation from the HI. Moreover, high resolution observations of these clouds show thatthey appear the same as Milky Way GMCs when viewed through the sameobservational filters. The GMCs show significantly less angularmomentum than predicted by simple formation theories, suggesting theimportance of magnetohydrodynamic effects in their formation.

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