Can the High Velocity Clouds Produce Turbulence in the Outskirts of Galactic Disks?

Details Can the High Velocity Clouds Produce Turbulence in the Outskirts of Galactic Disks? Can the High Velocity Clouds Produce Turbulence in the Outskirts of Galactic Disks?

Oct 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aspc..396..219s&link_type=abstract

Formation and Evolution of Galaxy Disks ASP Conference Series, Vol. 396, Proceedings of the conference held 1-5 October, 2007 at

Astronomy and Astrophysics

Astronomy

Scientific paper

We present two-dimensional magneto-hydrodynamical numerical simulations to study the effects produced by a continuous rain of small high velocity clouds (HVCs) in the external parts of the galactic disk. We find that, for galactic conditions at a galactocentric distances of about 20 kpc and mass accretion rates consistent with current empirical and theoretical determinations in the Milky Way, the impact of compact HVCs onto the disk can maintain transonic turbulent motions in the warm phase (˜2500 K) of H I. For a gaseous disk at 2500 K, and asuming that infall is the only driver of turbulence, the resulting H I line widths are of ˜6.5 km s^{-1}.

Affiliated with

Also associated with

No associations

Rating

Can the High Velocity Clouds Produce Turbulence in the Outskirts of Galactic Disks? does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Can the High Velocity Clouds Produce Turbulence in the Outskirts of Galactic Disks?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Can the High Velocity Clouds Produce Turbulence in the Outskirts of Galactic Disks? will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-772368