Collision of a high-velocity cloud with a dust cloud in the Galactic halo

Details Collision of a high-velocity cloud with a dust cloud in the Galactic halo Collision of a high-velocity cloud with a dust cloud in the Galactic halo

Mar 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...211..402r&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 211, no. 2, March 1989, p. 402-408.

Astronomy and Astrophysics

Astrophysics

27

Cosmic Dust, Inelastic Collisions, Interstellar Matter, Molecular Clouds, Nebulae, Carbon Monoxide, Formaldehyde, Radial Velocity, Spectral Line Width

Scientific paper

Results are presented from high angular resolution (C-12)O line observations of the prominent small scale optical filament at the low-l, low-b boundary of the Draco nebula. A smooth CO distribution along the filament is observed with a steep intensity gradient at the tip of the filament. The variations in CO intensity, the radial velocity, the line width, and the distribution and kinematics of the H I gas suggest that the filament was created by an inelastic collision between Draco nebula and a H I high velocity cloud at V = -180 km/s.

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