ar X iv : a st ro - p h / 06 11 59 1 v 1 1 9 N ov 2 00 6 The Effect of Cluster Environment on Galaxy Evolution in the Pegasus I Cluster
نویسندگان
چکیده
We present neutral hydrogen observations of 54 galaxies in the Pegasus cluster. The observations include single dish HI measurements, obtained with the Arecibo telescope for all 54 galaxies in the sample, as well as HI images, obtained with the VLA for 10 of these. The Arecibo profiles reveal an overall HI deficiency in the cluster, with ∼40% of the galaxies in the core of the cluster showing modest deficiencies of typically a factor of 2 – 3. The HI morphology of some galaxies shows that the HI disk is smaller than the optical disk and slightly offset from NASA/Jenkins Predoctoral Fellow.
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