Galaxy Collisions: Detailed Comparisons between Simulations and Observations

Details Galaxy Collisions: Detailed Comparisons between Simulations and Observations Galaxy Collisions: Detailed Comparisons between Simulations and Observations

Jun 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aps..dcm.c3005h&link_type=abstract

American Physical Society, DCOMP Meeting, June 25-28, 2001 Cambridge, Massachusetts Bulletin of the American Physical Society, V

Physics

Scientific paper

Simulations of galaxy collisions, when compared with observations of collisional systems taken at multiple wavelengths, allow one to uncover details in real galaxies, such as significant perturbations from simple rotational galactic disk motion, the history and development of discrete, collision-induced star-forming regions in the interstellar medium (ISM), and the amount of energy deposited into the ISM by the collision. A new n-body/SPH simulation code that incorporates a treatment of multiple phases in the ISM is used to investigate the creation of hot galactic halos and the formation of structure in galaxies due to collisions. These results will aid in our understanding of the history of star formation and the formation of some structural features over time in present-day galaxies.

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