Evolution of Galaxy Morphology
Abstract
A strictly empirical review is given of presently available data on the evolution of galaxy morphology. From HST observations of distant galaxies and ground-based observations of nearby ones observed at the same rest-frame wavelength it is found that late-type (Sbc-Sc) galaxies evolve more rapidly with increasing redshift than do early-type (E-Sa-Sab) galaxies. Furthermore the fraction of peculiar objects, that cannot be shoehorned into the Hubble tuning fork classification scheme, increases rapidly with redshift. Unexpectedly it is found that, over a wide range of densities, the fraction of barred galaxies is independent of environment. However, this fraction of barred galaxies appears to decline rapidly with increasing redshift.
Cite
@article{arxiv.astro-ph/0208160,
title = {Evolution of Galaxy Morphology},
author = {Sidney van den Bergh},
journal= {arXiv preprint arXiv:astro-ph/0208160},
year = {2007}
}
Comments
8 pages. No figures