Star formation in a galactic wind

Details Star formation in a galactic wind Star formation in a galactic wind

Oct 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980natur.287..613f&link_type=abstract

Nature, vol. 287, Oct. 16, 1980, p. 613, 614. Research supported by the Radcliffe Trust.

Computer Science

37

Cosmic Gases, Elliptical Galaxies, Intergalactic Media, Star Formation, Stellar Winds, Gas Pressure, Gas Temperature, Supernovae, Wind Velocity

Scientific paper

Giant shells of faint optical emission discovered around several normal elliptical galaxies are interpreted in terms of star formation in a shocked galactic wind. It is shown that gas produced by the evolution of stars in an elliptical galaxy and driven out of the galaxy in a wind powered by supernovae would be heated and compressed as it passes through a shock. As the gas cools, star formation can occur within it if it is unstable to self-gravitation, which is shown to be possible for shock velocities greater than 10 to the 7th cm/sec and almost any mass. About 10 to the 8th stars of 1 solar mass thus formed could then account for the observed emission. It is noted that the shocks invoked may be a result of gradual increases in wind velocity, the collision of the wind with a tenuous intergalactic medium, or more cataclysmic events within the galaxy.

Affiliated with

Also associated with

No associations

Rating

Star formation in a galactic wind 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 Star formation in a galactic wind, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Star formation in a galactic wind will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-949765