Mathematics – Logic
Scientific paper
Mar 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992aj....103..784d&link_type=abstract
Astronomical Journal (ISSN 0004-6256), vol. 103, March 1992, p. 784-792.
Mathematics
Logic
61
Globular Clusters, Interstellar Gas, Molecular Gases, Novae, Spiral Galaxies, Carbon Monoxide, H Ii Regions, Ionized Gases, Star Formation
Scientific paper
New interferometric observations of the molecular gas within the early type barred spiral galaxy NGC 3351 (M95) have revealed a nuclear molecular gas bar about 1 kpc long, that is aligned perpendicular to the large scale stellar bar. The mass of gas associated with the nuclear molecular gas bar is about 1.8 x 10 exp 8 solar masses representing about 25 percent of the total molecular gas mass. NGC 3351 is associated with other distinguishing morphological characteristics including a nuclear ring of H II regions, which brought NGC 3351 early notoriety as a 'hotspot nucleus', and a much larger ring of H II regions that encircles the stellar bar. Collectively, the distinctive morphology of the neutral and ionized medium within NGC 3351 can be understood in terms of resonances associated with a stellar bar pattern rotating at an angular velocity of about 60 km/s kpc.
Devereux Nicholas A.
Kenney Jeffrey D.
Young Judith S.
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