Magellanic Cloud Planetary Nebulae

Details Magellanic Cloud Planetary Nebulae Magellanic Cloud Planetary Nebulae

Jul 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991hst..prop.1266b&link_type=abstract

HST Proposal ID #1266

Computer Science

Hst Proposal Id #1266

Scientific paper

Using the high resolution f/96 mode of the FOC we shall image Magellanic Cloud Planetary Nebulae - objects whose diameters are less than 2 arcsec. Their known distances will allow nebular masses to be derived from their angular diameters, yielding the distribution of PN shell masses for the first time. In combination with their nebular expansion velocities, known from ground-based studies, it will be possible to determine the age of the objects. We shall obtain spatially resolved long-slit f/48 spectra of the nebulae to determine the electron density distribution and chemical abundances and to enable detailed nebular modelling thereby yielding the central star effective temperatures and luminosities. Comparison of those two parameters will allow a comparison to be made with the masses derived for the ejected envelopes.

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