2.1k citations · 5.7k across the 46 of their papers we have counts for
19 papers · 1 filter
Consistent beta values from density-density and velocity-velocity comparisons
Saleem Zaroubi, Enzo Branchini, Yehuda Hoffman +1
We apply a new algorithm, called the Unbiased Minimal Variance (hereafter UMV) estimator, to reconstruct the cosmic density and peculiar velocity fields in our local universe from…
Redshift-distance Survey of Early-type Galaxies: The D_n-sigma Relation
M. Bernardi, M. V. Alonso, L. N. da Costa +5
In this paper R-band photometric and velocity dispersion measurements for a sample of 452 elliptical and S0 galaxies in 28 clusters are used to construct a template D_n-sigma relat…
Redshift-distance Survey of Early-type Galaxies: the ENEARc Cluster Sample
M. Bernardi, M. V. Alonso, L. N. da Costa +5
This paper presents data on the ENEARc subsample of the larger ENEAR survey of the nearby early-type galaxies. The ENEARc galaxies belong to clusters and were specifically chosen t…
The UZC-SSRS2 Group Catalog
Massimo Ramella, Margaret J. Geller, Armando Pisani +1
We apply a friends-of-friends algorithm to the combined UZC and SSRS2 redshift surveys to construct a catalog of 1168 groups of galaxies; 411 of these groups have 5 or more members…
Comparing the SFI Peculiar Velocities with the PSCz Gravity Field: a VELMOD analysis
E. Branchini, W. Freudling, L. N. Da Costa +6
We compare the peculiar velocities derived from the I-band Tully-Fisher (TF) relation for 989 field spiral galaxies in the SFI catalogue with the predicted velocity field derived f…
Optical/Infrared Survey of Galaxy Clusters
Luiz da Costa, S. Arnouts, S. Bardelli +13
In this contribution the ongoing effort to build a statistical sample of clusters of galaxies over a wide range of redshifts to study the evolution of clusters and member galaxies…
ENEAR Redshift-Distance Survey: Cosmological Constraints
S. Borgani, M. Bernardi, L. N. da Costa +5
We present an analysis of the ENEAR sample of peculiar velocities of elliptical galaxies, obtained with D_n-σdistances. We use the velocity correlation function to analyze the stat…
Redshift-Distance Survey of Early-type Galaxies. I. Sample Selection, Properties and Completeness
L. N. da Costa, M. Bernardi, M. V. Alonso +5
This is the first in a series of papers describing the recently completed all-sky redshift-distance survey of nearby early-type galaxies (ENEAR) carried out for peculiar velocity a…
Redshift-Distance Survey of Early-Type Galaxies. IV. Dipoles of the Velocity Field
L. N. da Costa, M. Bernardi, M. V. Alonso +5
We use the recently completed redshift-distance survey of nearby early-type galaxies (ENEAR) to measure the dipole component of the peculiar velocity field to a depth of cz ~ 6000…
Correlation Analysis of SFI Peculiar Velocities
S. Borgani, L. N. da Costa, I. Zehavi +5
We present results of a statistical analysis of the SFI catalog of peculiar velocities, a recently completed survey of spiral field galaxies with I-band Tully-Fisher distances (Hay…
Large-Scale Power Spectrum and Cosmological Parameters from SFI Peculiar Velocities
Wolfram Freudling, Idit Zehavi, Luiz N. da Costa +7
We estimate the power spectrum of mass density fluctuations from peculiar velocities of galaxies by applying an improved maximum-likelihood technique to the new all-sky SFI catalog…
Cluster vs. Field Elliptical Galaxies and Clues on their Formation
Mariangela Bernardi, Alvio Renzini, Luiz N. da Costa +6
Using new observations for a sample of 931 early-type galaxies we investigate whether the \mg2--\so relation shows any dependence on the local environment. The galaxies have been a…
Southern Sky Redshift Survey: Clustering of Local Galaxies
C. N. A. Willmer, L. Nicolaci da Costa, P. S. Pellegrini
We use the two-point correlation function to calculate the clustering properties of the recently completed SSRS2 survey. The redshift space correlation function for the magnitude-l…
Study od a Slice at +9 to +15 degrees of Declination: I. The Neutral Hydrogen Content of Galaxies in Loose Groups
M. A. G. Maia, C. N. A. Willmer, L. N. da Costa
We examine the H1 content of spiral galaxies in groups by using a catalog of loose groups of galaxies identified in a magnitude limited sample m < 15.7 spanning the range 8 h to 18…
Comparison of the SFI Peculiar Velocities with the IRAS 1.2 Jy Gravity Field
Luiz N. da Costa, Adi Nusser, Wolfram Freudling +4
We present a comparison between the peculiar velocity fields measured from the SFI all-sky Sbc-Sc Tully-Fisher catalog and that derived from the \iras 1.2 Jy redshift survey galaxy…
Peculiar Velocities of Clusters in CDM Models
S. Borgani, L. N. da Costa, W. Freudling +4
Recently, peculiar velocity measurements became available for a new sample of galaxy clusters. From an accurately calibrated Tully-Fisher relation for spiral galaxies, we compute t…
The I-Band Tully-Fisher Relation for Cluster Galaxies: a Template Relation, its Scatter and Bias Corrections
R. Giovanelli, M. Haynes, T. Herter +5
Infrared I band photometry and velocity widths for galaxies in 24 clusters, with radial velocities between 1,000 and 10,000 \kms, are used to construct a template Tully--Fisher (TF…
Clustering of Galaxies in the Hubble Deep Field
Jens V. Villumsen, Wolfram Freudling, Luiz N. da Costa
We compute the two-point angular correlation function for a sample of 1700 galaxies to a magnitude-limit equivalent to using a catalog derived from the…
Testing the Peculiar Velocity Field predicted from Redshift Surveys
Wolfram Freudling, Luiz Nicolaci da Costa, Paulo S. Pellegrini
The reconstruction of the peculiar velocity field from the 1.936~Jy iras selected sample of galaxies is compared to a similar reconstruction from an optically selected sample. A ge…