Portal de Periódicos da CAPES

Clump 2 - an inner spiral arm?

1986; IOP Publishing; Volume: 306; Linguagem: Inglês

10.1086/184695

1538-4357

A. A. Stark, T. M. Bania,

Spectroscopy and Laser Applications

view Abstract Citations (59) References (10) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Clump 2: an Inner Spiral Arm? Stark, A. A. ; Bania, T. M. Abstract 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. Publication: The Astrophysical Journal Pub Date: July 1986 DOI: 10.1086/184695 Bibcode: 1986ApJ...306L..17S Keywords: Galactic Structure; Molecular Clouds; Spiral Galaxies; Carbon Monoxide; Celestial Mechanics; Galactic Rotation; Astrophysics; GALAXIES: STRUCTURE; INTERSTELLAR: MOLECULES full text sources ADS | data products SIMBAD (1)