Clump 2 - an inner spiral arm?

Details Clump 2 - an inner spiral arm? Clump 2 - an inner spiral arm?

Jul 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...306l..17s&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 306, July 1, 1986, p. L17-L20.

Astronomy and Astrophysics

Astrophysics

43

Galactic Structure, Molecular Clouds, Spiral Galaxies, Carbon Monoxide, Celestial Mechanics, Galactic Rotation

Scientific paper

The "Clump 2" molecular cloud complex near the galactic center at (l, b, v ≈ (3°, +0°.2, +20 to +150 km s-1) has been studied with the J = 1→0 rotational transitions of 12CO and 13CO and the J = 2→1 transition of CS. The molecular gas is distributed in a complex of 16 individual CS emitting cores, each having densities in excess of 2×104cm-3, and masses greater than 5×105M_sun;. All the molecular emission is at velocities permitted by galactic rotation; the authors suggest that the extraordinary line width of the complex is the signature of a dust lane or inner spiral arm in a barlike potential.

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