NGC 5253 Starburst as a Laboratory for Enrichment Processes

Details NGC 5253 Starburst as a Laboratory for Enrichment Processes NGC 5253 Starburst as a Laboratory for Enrichment Processes

Jul 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995hst..prop.6001r&link_type=abstract

HST Proposal ID #6001

Physics

Hst Proposal Id #6001 Galaxies &Amp, Clusters

Scientific paper

The nearby starburst in NGC 5253 presents a unique snapshot of the short stage of element enrichment and an unprecedented opportunity to study the interaction between evolving massive stars and the interstellar medium. We propose to observe NGC 5253 with FOS to: {i} determine the carbon abundance near a region of enhanced nitrogen found from the ground to be associated with Wolf-Rayet stars, and {ii} to study the stellar population in the central starburst knots and to model their age and IMF in order to relate the stellar properties to the ISM enrichment. HST provides the long wavelength coverage to allow determination of element abundances, IMF and starburst age from stellar signatures, together with the high spatial resolution to measure change over arcsec scales. The proposed observations should result in a fundamental understanding of the link between starbursts and enrichment mechanisms of relatively low metallicity gas.

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