1.3k citations · 4.2k across the 29 of their papers we have counts for
6 papers · 2 filters
A Principal Component Analysis approach to the Star Formation History of elliptical galaxies in Compact Groups
I. Ferreras, A. Pasquali, R. R. de Carvalho +2
(Abridged) Environmental differences in the stellar populations of early-type galaxies are explored using principal component analysis (PCA), focusing on differences between ellipt…
Morphology and evolution of emission line galaxies in the Hubble Ultra Deep Field
N. Pirzkal, C. Xu, I. Ferreras +8
We investigate the properties and evolution of a sample of galaxies selected to have prominent emission lines in low-resolution grism spectra of the Hubble Ultra Deep Field (HUDF).…
The HI content of the recently discovered field dwarf galaxy APPLES1
A. Tarchi, J. Ott, A. Pasquali +3
We present observations in a search for neutral hydrogen associated with the recently detected field dwarf galaxy APPLES1, performed with the Parkes radiotelescope. The observed ra…
The Excess Far-Infrared Emission of AGN in the Local Universe
A. Pasquali, G. Kauffmann, T. M. Heckman
We have cross-correlated the Sloan Digital Sky Survey (SDSS) second data release spectroscopic galaxy sample with the IRAS faint-source catalogue (FSC). Optical emission line ratio…
Passively Evolving Early-type Galaxies at 1.4<z<2.5 in the Hubble Ultra Deep Field
E. Daddi, A. Renzini, N. Pirzkal +13
We report on a complete sample of 7 luminous early-type galaxies in the Hubble Ultra Deep Field (UDF) with spectroscopic redshifts between 1.39 and 2.47 and to K<23 AB. Using the B…
An overdensity of galaxies at z=5.9 +/-0.2 in the Ultra Deep Field confirmed using the ACS grism
S. Malhotra, J. E. Rhoads, N. Pirzkal +17
We present grism spectra taken with the Advanced Camera for Surveys to identify 29 red sources with (i'-z') > 0.9 in the Hubble Ultra Deep Field (HUDF). Of these 23 are found to be…