Metallicity and the level of the ultraviolet rising branch in elliptical galaxies

Details Metallicity and the level of the ultraviolet rising branch in elliptical galaxies Metallicity and the level of the ultraviolet rising branch in elliptical galaxies

Apr 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986lick.rept.....f&link_type=abstract

Final Report, 1 Jul. 1984 - 31 Mar. 1986 Lick Observatory, Santa Cruz, CA.

Physics

Elliptical Galaxies, Flux (Rate), Line Spectra, Spectrum Analysis, Ultraviolet Radiation, Luminosity, Metallicity, Stellar Spectra

Scientific paper

This final report concerns a project to study the systematics of the ultraviolet flux level in elliptical galaxies. Prior to the inception of this work, the systematic behavior of the ultraviolet flux level was basically unknown and ultraviolet fluxes were observed to vary greatly from galaxy to galaxy. There was a suggestion, however, that there might be a dependence of ultraviolet flux on galaxy metallicity, but the correlation was based on just six galaxies. IUE spectra of elliptical galaxies have been reanalyzed and placed on a consistent, homogenous flux system. The major conclusion is a confirmation of the original hypothesis: galaxies with stronger Mg2 lines show enhanced ultraviolet flux.

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