Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 3 of 3
Full-Text Articles in Entire DC Network
The Acs Fornax Cluster Survey. Ii. The Central Brightness Profiles Of Early-Type Galaxies: A Characteristic Radius On Nuclear Scales And The Transition From Central Luminosity Deficit To Excess, Patrick Côté, Laura Ferrarese, Andrés Jordán, David Merritt, Et Al.
The Acs Fornax Cluster Survey. Ii. The Central Brightness Profiles Of Early-Type Galaxies: A Characteristic Radius On Nuclear Scales And The Transition From Central Luminosity Deficit To Excess, Patrick Côté, Laura Ferrarese, Andrés Jordán, David Merritt, Et Al.
Articles
We analyse brightness profiles for 143 early-type galaxies in the Virgo and Fornax Clusters, observed with the Advanced Camera for Surveys on the Hubble Space Telescope. S´ersic models are found to provide accurate representations of the global profiles with a notable exception: the observed profiles deviate systematically inside a characteristic “break” radius of Rb ≈ 0.02+0.025 −0.01 Re, where Re is the effective radius of the galaxy. The sense of the deviation is such that bright galaxies (MB . −20) typically show central light deficits with respect to the inward extrapolation of the S´ersic model, while the great majority of …
The Acs Virgo Cluster Survey. Xiii. Sbf Distance Catalog And The Three-Dimensional Structure Of The Virgo Cluster, Simona Mei, John P. Blakeslee, Patrick Côté, John L. Tonry, Michael J. West, Laura Ferrarese, Andrés Jordán, Eric W. Peng, André Anthony, David Merritt
The Acs Virgo Cluster Survey. Xiii. Sbf Distance Catalog And The Three-Dimensional Structure Of The Virgo Cluster, Simona Mei, John P. Blakeslee, Patrick Côté, John L. Tonry, Michael J. West, Laura Ferrarese, Andrés Jordán, Eric W. Peng, André Anthony, David Merritt
Articles
The ACS Virgo Cluster Survey consists of HST/ACS imaging for 100 early–type galaxies in the Virgo cluster, observed in the F475W(≈ SDSS g) and F850LP (≈ SDSS z) filters. We derive distances for 84 of these galaxies using the method of Surface Brightness Fluctuations (SBF), present the SBF distance catalog, and use this database to examine the three-dimensional distribution of early–type galaxies in the Virgo Cluster. The SBF distance moduli have a mean (random) measurement error of 0.07 mag (0.5 Mpc), or roughly three times better than previous SBF measurements for Virgo Cluster galaxies. Five galaxies lie at a distance …
The Acs Virgo Cluster Survey Xii: The Luminosity Function Of Globular Clusters In Early Type Galaxies, Andrés Jordán, Dean Mclaughlin, Patrick Côté, Laura Ferrarese, Eric W. Peng, Simona Mei, Daniela Villegas, David Merritt, John L. Tonry, Michael J. West
The Acs Virgo Cluster Survey Xii: The Luminosity Function Of Globular Clusters In Early Type Galaxies, Andrés Jordán, Dean Mclaughlin, Patrick Côté, Laura Ferrarese, Eric W. Peng, Simona Mei, Daniela Villegas, David Merritt, John L. Tonry, Michael J. West
Articles
We analyze the luminosity function of the globular clusters (GCs) belonging to the early-type galaxies observed in the ACS Virgo Cluster Survey. We have obtained maximum likelihood estimates for a Gaussian representation of the globular cluster luminosity function (GCLF) for 89 galaxies. We have also fit the luminosity functions with an “evolved Schechter function”, which is meant to reflect the preferential depletion of low-mass GCs, primarily by evaporation due to two-body relaxation, from an initial Schechter mass function similar to that of young massive clusters in local starbursts and mergers. We find a highly significant trend of the GCLF dispersion …