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Date and Time of the Query: 2019-05-21 T09:36:58 PDT
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For refcode 1992A&AS...94..299S:
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Copyright by European Southern Observatory (ESO). Reproduced by permission
1992A&AS...94..299S Multifrequency windows on spiral galaxies. II. The A262 and Cancer clusters Marco Scodeggio, Alessandro Boselli, Giuseppe Gavazzi, Ginevra Trinchieri and Bianca Garilli Osservatorio Astronomico di Brera, via Brera 28,20121 Milano, Italy Osservatorio Astrofisico di Arcetri, Largo E. Fermi 5,50125 Firenze, Italy Istituto di Fisica Cosmica del CNR, via Bassini 15,20133 Milano, Italy Received July 26; accepted October 21, 1991 Abstract. We present new photometrical data (U, B, V and H bands) for about 100 spiral galaxies in the A262 and Cancer clusters. The data arc used to study the dependence of radio continuum to H band and FIR to H band ratios on the color index U - B, taken as an indicator of the star formation history in galaxy disks. Both parameters are found to increase in bluer galaxies, in agreement with the results obtained for other clusters or field galaxies. The radio continuum activity of spiral galaxies in the Cancer cluster is not enhanced like in other cluster spirals. A study of the reliability of CCD surface photometry is reported, based on the comparison of two sets of observations obtained with different telescopes. Key words: clusters: of galaxies - photometry.
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