The Tully-Fisher relation of cluster spirals at z = 0.83

Details The Tully-Fisher relation of cluster spirals at z = 0.83 The Tully-Fisher relation of cluster spirals at z = 0.83

2002-11-27

arxiv.org/abs/astro-ph/0211598v1

Mon.Not.Roy.Astron.Soc.339:L1,2003

Astronomy and Astrophysics

Astrophysics

Accepted for publication in MNRAS

Scientific paper

10.1046/j.1365-8711.2003.06324.x

We present the rest-frame B-band Tully-Fisher relation for a sample of 8 cluster spiral galaxies at z = 0.83 and 19 field spirals at z = 0.15-0.90 based on VLT spectroscopy and HST photometry. No strong difference is detected between the cluster and the field galaxies, but we find some evidence that the cluster spirals are ~0.5-1 mag brighter than the field ones at a fixed rotation velocity. Although only a ~1.5-2 sigma result, if confirmed with larger samples this effect could be due to the cluster spirals experiencing a period of enhanced star formation while falling into the cluster.

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