215 citations · 1.3k across the 22 of their papers we have counts for
12 papers · 1 filter
LCDM Satellites and HI Companions - The Arecibo ALFA Survey of NGC 2903
J. A. Irwin, G. L. Hoffman, K. Spekkens +11
We have conducted a deep, complete HI survey, using Arecibo/ALFA, of a field centered on the nearby, isolated galaxy, NGC 2903, which is similar to the Milky Way in its properties.…
HI clouds in the proximity of M33
M. Grossi, C. Giovanardi, E. Corbelli +5
Neutral hydrogen clouds are found in the Milky Way and Andromeda halo both as large complexes and smaller isolated clouds. Here we present a search for Hi clouds in the halo of M33…
The HI content of Early-Type Galaxies from the ALFALFA survey I. Catalogued HI sources in the Virgo cluster
S. di Serego Alighieri, G. Gavazzi, C. Giovanardi +8
Aims: We are using the Arecibo Legacy Fast ALFA survey (ALFALFA), which is covering 17% of the sky at 21 cm, to study the HI content of Early-Type galaxies (ETG) in an unbiased way…
Rotational Widths for Use in the Tully-Fisher Relation. II. The Impact of Surface Brightness
Barbara Catinella, Martha P. Haynes, Riccardo Giovanelli
Using a large sample of spiral galaxies for which 21 cm single-dish and/or long-slit optical spectra are available, we make a detailed comparison between various estimates of rotat…
The Arecibo Legacy Fast ALFA Survey: III. HI Source Catalog of the Northern Virgo Cluster Region
R. Giovanelli, M. P. Haynes, B. R. Kent +20
We present the first installment of HI sources extracted from the Arecibo Legacy Fast ALFA (ALFALFA) extragalactic survey, initiated in 2005. Sources have been extracted from 3-D s…
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…
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…
The I-Band Tully-Fisher Relation for Cluster Galaxies: Data Presentation
R. Giovanelli, M. Haynes, T. Herter +5
Observational parameters which can be used for redshift-independent distance determination using the Tully-Fisher (TF) technique are given for 782 spiral galaxies in the fields of…
The Relative Distance between the Clusters of Galaxies A2634 and Coma
Marco Scodeggio, Riccardo Giovanelli, Martha P. Haynes
The Tully-Fisher and Fundamental Plane relations are used to obtain two independent estimates of the relative distance between the clusters A2634 and Coma. Previously published stu…
Two-Stream Instability of Counter-Rotating Galaxies
R. V. E. Lovelace, K. P. Jore, M. P. Haynes
The present study of the two-stream instability in stellar disks with counter-rotating components of stars and/or gas is stimulated by recently discovered counter-rotating spiral a…
Determination of Malmquist Bias and Selection Effects from Monte-Carlo Simulations
Wolfram Freudling, Luiz N. Da Costa, Gary Wegner +3
Maps of the peculiar velocity field derived from distance relations are affected by Malmquist type bias and selection effects. Because of the large number of interdependent effects…
What is the Small-Scale Velocity Dispersion of Galaxy Pairs?
L. Guzzo, K. B. Fisher, M. S. Strauss +2
We present some new results from an ongoing investigation of the anisotropy of the two--point correlation function for optically selected galaxies. We have estimated xi(r_p,pi) fro…