Imagery and Spectroscopy of Super Metal Poor Galaxies

Details Imagery and Spectroscopy of Super Metal Poor Galaxies Imagery and Spectroscopy of Super Metal Poor Galaxies

Jul 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991hst..prop.2416d&link_type=abstract

HST Proposal ID #2416

Physics

Hst Proposal Id #2416

Scientific paper

We propose to obtain WF and FOC/48 imagery of one of the nearest of the super-metal-poor blue irregular galaxies known, GR8. The imagery will be obtained through wide band UV, B, V, R, and I filters and narrow-band filters isolating H-alpha and [OIII]5007. The wide-band imagery will be used to evaluate the massive star IMF, determination of the age distribution of groups of unresolved stars in the galaxies, and detect possible extended halo indicative of an old stellar population. The narrow band imagery will be used to identify the amount and spectral index of the ionizing radiation from OB stars, and detect supernova remnants, planetary nebulae, and emission-line stars. It is hoped that the results will enable us to evaluate the chemical and stellar evolutionary history of these relatively rare systems and their place in the larger picture of galaxy formation and evolution.

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