Numerical simulations of ring galaxies: First ring events, star formation, and AM0644-741

Details Numerical simulations of ring galaxies: First ring events, star formation, and AM0644-741 Numerical simulations of ring galaxies: First ring events, star formation, and AM0644-741

Nov 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005phdt.........8a&link_type=abstract

Ph.D dissertation, 2005. 247 pages; United States -- Virginia: George Mason University; 2005. Publication Number: AAT 3176556.

Mathematics

Logic

Ring Galaxies, Star Formation, Am0644-741

Scientific paper

We examine first ring events in collisional galaxy simulations in order to model physical systems such as AM0644-741 and to draw broader conclusions about the nature of first ring formation events. Rings in collisional remnant galaxies such as AM0644-741 are the result of the gas response of a disk galaxy to the near-center collision of a smaller neighboring galaxy. We discuss resolution biases in typical density-based star formation laws, offer an experimental star formation recipe of [Special characters omitted.] , and also investigate the relatively low significance of heating, cooling and feedback mechanisms in determining the gross morphology and kinematics of collisional systems. Utilizing a very large search of the pericenter passage impact parameter phase space, we set constraints on the likely mass of the primary galaxy as well as providing insight into the time scales involved for ring formation and ring lifetime. We then focus on one simulation in depth to produce both a morphological and kinematic match to ring galaxy AM0644-741.
A general approach to simulating observed systems is then presented.

Affiliated with

Also associated with

No associations

Rating

Numerical simulations of ring galaxies: First ring events, star formation, and AM0644-741 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 Numerical simulations of ring galaxies: First ring events, star formation, and AM0644-741, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Numerical simulations of ring galaxies: First ring events, star formation, and AM0644-741 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1652640