Other
Scientific paper
Jul 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001hst..prop.9117o&link_type=abstract
HST Proposal ID #9117
Other
Hst Proposal Id #9117 Galaxies
Scientific paper
M82 is the prototype starburst galaxy and the nearest analogue to the star forming galaxies recently identified at high redshifts. There is good evidence that M82 has experienced multiple starburst episodes over the past 800 Myr. No other galaxy affords the opportunity to study both an active starburst and the subsequent post-burst phase at such close range {3.6 Mpc} and with such a wealth of complementary data from other space and ground-based telescopes. In our Cycle 1 and 7 HST imaging programs on M82, we identified numerous super star clusters, which seem to be hallmarks of intense star formation. We propose to obtain spatially-resolved STIS spectroscopy of 20 such clusters in M82's active starburst core and also in its ``fossil'' starburst region {of age > 200 Myr} as a means of tracing the history of star formation and its propagation. With the spatially-resolved spectra, we will be able to study the internal structure of the clusters, evidence for internal mass segregation, their interaction with their surroundings {including M82's superwind}, and the character of the bright, diffuse non-cluster populations.
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