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arXiv · astro-ph/9804206

H-alpha Objective Prism Survey of Abell 1060

S. M. Bennett·C. Moss
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Abstract

As part of a continuing study of the effect of cluster environment on the star formation properties of galaxies, we have undertaken an H-alpha objective prism survey of the nearby cluster, Abell 1060. We detect 33 galaxies in emission, 24 of which are cluster members. We present new radial velocity measurements and H-alpha+[NII] equivalent widths and fluxes for a number of these galaxies. We distinguish between galaxies with diffuse and compact emission, the latter having been associated in previous work with a disturbed morphology of the galaxy and most likely resulting from tidally-induced star formation from galaxy-galaxy or cluster-galaxy interactions. The fraction of cluster spirals in Abell 1060 detected with compact emission agrees with the expected fraction for a cluster of its richness, as derived from results of a previous survey of 8 clusters. Some of the detected cluster early-type spirals exhibit anomalously high global H-alpha equivalent widths, as compared to galaxies of similar type in the field.

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S. M. Bennett, C. Moss. 1998-04-21. H-alpha Objective Prism Survey of Abell 1060. https://doi.org/10.1051/aas%3A1998358

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