Mathematics – Logic
Scientific paper
Mar 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986pasp...98..269s&link_type=abstract
Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 98, March 1986, p. 269-284. NSF-supported research.
Mathematics
Logic
72
Cosmology, Elliptical Galaxies, Galactic Evolution, Optical Emission Spectroscopy, Radio Galaxies, Red Shift, Emission Spectra, Lyman Alpha Radiation, Oxygen Spectra, Spectrophotometry, Stellar Evolution
Scientific paper
This paper reviews progress in two areas of optical research on faint galaxies. First the author discusses the philosophy and techniques needed to employ radio galaxies as evolutionary and cosmological probes out to redshifts now approaching 2.0. The distant radio galaxies seem to be systematically more active than their nearby counterparts. Radio galaxies can also be studied as galaxies of evolving stars; the present interpretations of visual and IR galaxy colors and magnitudes suggest modest lingering star formation over the past 1010years in many luminous radio galaxies. The author concludes with a discussion on the location and utilization of faint radio-quiet red galaxies; these are giant E systems at z ≥ 0.5.
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