Merger-Induced Starbursts |
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Authors: | Nicole Homeier JS Gallagher |
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Institution: | (1) ESO Garching, Karl-Schwarzschild-Str. 2, D-85748, Germany;(2) UW-Madison, 475 N. Charter, Sterling Hall, Madison, WI 53706, U.S.A. |
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Abstract: | Starburst galaxies are extremely luminous objects with an abundance of young massive stars and a disturbed optical morphology.
Famous examples such as the Antennae, involve major mergers, but the starburst phenomenon can also be triggered in a more
gentle, minor merger. Such an event disturbs but does not disrupt the primary galaxy (i.e. the primary will recover from the
interaction without a drastic jump along the Hubble sequence). In such an interaction a significant number of super-star clusters
(SSCs) are formed,which may be the progenitors of present-day globular clusters. The ubiquity of globular cluster systems
among a wide range of galaxy types suggests that these interactions play a significant role in the evolution of ‘normal’ galaxies.
Therefore to understand the formation and evolution of galaxies, it is essential to understand such processes. Here we present
a HST WFPC2 broad-band study of three starburst galaxies with different merger histories.
This revised version was published online in September 2006 with corrections to the Cover Date. |
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