Abstract
view Abstract Citations (124) References (13) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The Carina dwarf-speroidal - an intermediate age galaxy. Mould, J. ; Aaronson, M. Abstract Carina dwarf spheroidal galaxy B and V deep frames have yielded a color-magnitude diagram which reaches V = 24 mag, and a main sequence turnoff is apparent at V = 23 mag. A well defined red horizontal branch yields a distance modulus of 19.8, and both isochrone fitting and the horizontal branch turnoff difference yield an age estimate for the bulk of the stellar population of 7.5 + or - 1.5 Gyr. A comparison of the Carina luminosity function with theoretical predictions offers no support for a Population II component in this galaxy, in keeping with other hypotheses suggesting that the fraction of 16 Gyr stars is small. This makes Carina the leading contender for a galaxy which did not form stars until the universe was old. Publication: The Astrophysical Journal Pub Date: October 1983 DOI: 10.1086/161389 Bibcode: 1983ApJ...273..530M Keywords: Astronomical Photometry; Dwarf Galaxies; Galactic Evolution; Galactic Structure; Star Distribution; Color-Magnitude Diagram; Main Sequence Stars; Mass To Light Ratios; Spheroids; Stellar Color; Stellar Evolution; Stellar Luminosity; Stellar Magnitude; Universe; Astronomy full text sources ADS | data products SIMBAD (1) NED (1)
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