Cloud collisional damping of spiral density waves in galaxies

Details Cloud collisional damping of spiral density waves in galaxies Cloud collisional damping of spiral density waves in galaxies

Aug 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...307l..39l&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 307, Aug. 15, 1986, p. L39-L42.

Astronomy and Astrophysics

Astrophysics

8

Damping, Density Wave Model, Galactic Structure, Interstellar Gas, Wave Interaction, Gas Density, Gravitational Effects, Milky Way Galaxy

Scientific paper

The damping of linear star-gas density waves is analyzed. An analytic expression for the wave damping rate is derived which fully accounts for the gravitational influence of the gas. For the Galaxy, interstellar cloud collisions give wave damping times of less than about a billon yr. This damping appears sufficiently strong to limit the growth of WASER spiral wave instabilities in the Galaxy. The damping time result suggests that spiral wave amplitudes in the Galaxy are self-limited by damping through wave-induced cloud collisions. The cloud random motions are in turn caused by spiral waves.

Affiliated with

Also associated with

No associations

Rating

Cloud collisional damping of spiral density waves in galaxies 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 Cloud collisional damping of spiral density waves in galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cloud collisional damping of spiral density waves in galaxies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-891944