Bibcode
Marinova, I.; Jogee, S.; Trentham, N.; Ferguson, H. C.; Weinzirl, T.; Balcells, M.; Carter, D.; den Brok, M.; Erwin, P.; Graham, A. W.; Goudfrooij, P.; Guzmán, R.; Hammer, D.; Hoyos, C.; Peletier, R. F.; Peng, E.; Verdoes Kleijn, G.
Referencia bibliográfica
New Horizons in Astronomy: Frank N. Bash Symposium 2009, proceedings of a conference held Oct. 18-20, 2009 in Austin, Texas, USA. Edited by L. M. Stanford, J. D. Green, L. Hai, and Y. Mao. ASP Conerence Series, Vol. 432. San Francisco: Astronomical Society of the Pacific., p.219
Fecha de publicación:
10
2010
Número de citas
8
Número de citas referidas
7
Descripción
We use ACS data from the HST Treasury survey of the Coma cluster
(z˜0.02) to study the properties of barred galaxies in the Coma
core, the densest environment in the nearby Universe. This study
provides a complementary data point for studies of barred galaxies as a
function of redshift and environment. From ˜470 cluster members
brighter than MI = -11 mag, we select a sample of 46
disk galaxies (S0-Im) based on visual classification. The sample
is dominated by S0s for which we find an optical bar fraction of
47±11% through ellipse fitting and visual inspection. Among the
bars in the core of the Coma cluster, we do not find any very large
(abar>2 kpc) bars. Comparison to other studies reveals
that while the optical bar fraction for S0s shows only a modest
variation across low-to-intermediate density environments (field to
intermediate-density clusters), it can be higher by up to a factor of
˜ 2 in the very high-density environment of the rich Coma cluster
core.