NGC 5907 revisited: a stellar halo formed by cannibalism?
Astrophysics
2007-05-23 v1
Abstract
We report on further observations of the luminous halo of NGC 5907. New V, I and B deep photometry confirms the existence of an extended stellar halo redder than the disk. Our data are consistent with a faint halo, or very thick disk, composed of a metal-rich old stellar population. We propose that it could be the remnant of a merged small elliptical, and we support our hypothesis with N-body simulations.
Cite
@article{arxiv.astro-ph/9804109,
title = {NGC 5907 revisited: a stellar halo formed by cannibalism?},
author = {J. Lequeux and F. Combes and M. Dantel-Fort and J. -C. Cuillandre and B. Fort and Y. Mellier},
journal= {arXiv preprint arXiv:astro-ph/9804109},
year = {2007}
}
Comments
4 pages, 6 figures, accepted in Astronomy and Astrophysics Letters