Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988mnras.230..249m&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 230, Jan. 15, 1988, p. 249-272. SERC-supported research
Astronomy and Astrophysics
Astronomy
61
Astronomical Spectroscopy, Galactic Evolution, Red Shift, Spectral Energy Distribution, Galactic Clusters, Interstellar Extinction, Seyfert Galaxies, Starburst Galaxies
Scientific paper
The authors have imaged the distant cluster Abell 370 (z = 0.37) with a CCD-based intermediate pass-band multicolour system defined in earlier papers in this series. Their technique is to use such colours to classify faint galaxies in redshift and spectral class without recourse to spectroscopic data. The authors demonstrate from a new comparison of ≡80 spectra gathered in five clusters at high redshift (including Abell 370), that their photometric classifications are generally accurate to ±0.05 in redshift and to ±1 Hubble type. For Abell 370 the authors present classifications for a sample of over 100 galaxies, mostly cluster members, statistically complete to RF = 21.2. In addition they analyse a deep ultraviolet CCD image of the cluster. The results are discussed in terms of galaxy evolution in clusters of galaxies.
Couch Warrick J.
Ellis Richard S.
MacLaren Iain
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