Other
Scientific paper
Dec 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...323..480s&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 323, Dec. 15, 1987, p. 480-504.
Other
36
Astronomical Models, Galaxies, Hydrodynamic Equations, Ring Galaxies, Star Formation, Stellar Structure, Far Infrared Radiation, Interstellar Gas, Molecular Clouds
Scientific paper
Numerical models of the development of star-formation bursts in collisional ring galaxies are presented. To extend the work of Appleton and Struck-Marcell (1987) target disks which have relatively high mean cloud mass and gas density are emphasized. In such cases, even relatively low mass intruder galaxies are capable of triggering intense star-formation bursts in the density waves. Although the bursts are very short-lived in any individual gas element, pressure effects stimulate neighboring gas elements to burst, which can result in a sustained enhancement in the net star-formation rate. The results are capable of explaining the high far-infrared fluxes observed in righ galaxies and provide clues to the development of starburst activity in other colliding galaxies.
Appleton Phil N.
Struck-Marcell Curtis
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