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Published 1998 | Published
Book Section - Chapter Open

NRO/OVRO CO(1-0) survey: central regions of nearby spiral galaxies


We have done a CO(1-0) imaging survey of the central regions of nearby spiral galaxies using the Nobeyama and Owens Valley Millimeter Arrays. The survey aims to reveal the nuclear gas properties in normal galaxies that have been paid relatively little attention compared to Seyferts, mergers, and ultraluminous IRAS galaxies. The sample consists of 20 galaxies that meet the following criteria: (1) i < 70° (2) δ > +5° (3) I_(CO) dV ≥ 10 K(T∗_A)km s^(−1) in the FCRAO Extragalactic CO Survey (4) no evidence of significant perturbation (e.g. merging). No selection was made on the basis of nuclear activity or IRAS data. The average distance of the galaxies is 15 Mpc and the average linear resolution is 300 pc.

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© 1998 IAU.

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