The galaxy alignment effect in Abell 1689: evolution, radial and luminosity dependence
Cosmology and Nongalactic Astrophysics
2015-05-19 v2
Abstract
We measure alignments on scales of 1 Mpc for galaxies in Abell 1689 () from an existing Hubble Space Telescope mosaic. We find evidence of galaxy alignment in the inner 500 kpc. The alignment appears to be stronger towards the centre and is mostly present among the fainter galaxies, while bright galaxies are unaligned. This is consistent with a model where alignments originate from tidal locking.
Cite
@article{arxiv.1007.2425,
title = {The galaxy alignment effect in Abell 1689: evolution, radial and luminosity dependence},
author = {Li-Wei Hung and Eduardo Banados and Roberto De Propris and Michael West},
journal= {arXiv preprint arXiv:1007.2425},
year = {2015}
}
Comments
Accepted by ApJ A few minor wording changes for clarity in the figure captions