Probing evolutionary mechanisms in galaxy clusters: H I in Abell 1367

Details Probing evolutionary mechanisms in galaxy clusters: H I in Abell 1367 Probing evolutionary mechanisms in galaxy clusters: H I in Abell 1367

Dec 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009an....330..919s&link_type=abstract

Astronomische Nachrichten, Vol.330, Issue , p.919-923

Astronomy and Astrophysics

Astronomy

Galaxies: Clusters: Individual: (Abell 1367), Galaxies: Evolution, Galaxies: Ism

Scientific paper

We are carrying out a programme of CO and interferometric H I observations in the nearby galaxy cluster Abell 1367. The aim is to better understand the processes driving the evolution of the ISM in late-type galaxies in the cluster environment. Abell 1367 is a dynamically young cluster. We have determined the H I content and g-i colour from AGES (Cortese 2008) and SDSS, respectively, of its bright late-type galaxies (spirals) in a volume centred on the NW subcluster. We use a combination of these characteristics, both of which are indicative of evolutionary history, to classify each spiral into one of four evolutionary states. This analysis revealed the cluster contains spirals in a wide range of evolutionary states. VLA D-array imaging centred on the NW subcluster indicates most galaxies in that field have their H I intensity maximum offset relative to its optical counterpart, implying a recent and strong disturbance. The direction of this offset is not always consistent with a simple scenario of ram pressure stripping by the cluster's high density intra-cluster medium (ICM).

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