CO Observations of a Galaxy behind the Galactic Plane, Dwingeloo 1

Details CO Observations of a Galaxy behind the Galactic Plane, Dwingeloo 1 CO Observations of a Galaxy behind the Galactic Plane, Dwingeloo 1

Feb 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996pasj...48...19k&link_type=abstract

Publications of the Astronomical Society of Japan, v.48, p.19-22.

Astronomy and Astrophysics

Astronomy

4

Galaxies: Individual (Dwingeloo 1), Galaxies: Spiral, Interstellar: Molecules

Scientific paper

We have observed Dwingeloo 1, which was discovered behind the disk of t he Milky Way in 1994, in the CO (J = 1--0) line transition with the Nobeyama 45- m telescope. We detected very weak CO line emission in the optical bar and marginally at the center. The surface density of molecular gas derived using the Galactic conversion factor N(H_2)/I_CO = 2.6 times 10(20) i s only 8.4 Msun pc(-2) , correcting for the inclination of the galaxy even in the center. The central surface density of molecular gas and the M(H_2)/M(HI) ratio indicate that Dwingeloo 1 is a molecular gas-poor galaxy.

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