10 papers · 1 filter
Optical Seeing and Infrared Atmospheric Transparency in the Upper Atacama Desert
Riccardo Giovanelli
With plans to build a large IR/optical telescope in the Atacama Desert, a site survey campaign has been underway since 1998 to characterize the optical seeing and the IR transparen…
A Search for OH Megamasers at z > 0.1: Preliminary Results
J. Darling, R. Giovanelli
We report the discovery of 11 OH megamasers and one OH absorber, along with upper limits on the OH luminosity of 53 other luminous infrared galaxies at z > 0.1. The new megamasers…
The Convergence Depth of the Local Peculiar Velocity Field
Daniel A. Dale, Riccardo Giovanelli
We have obtained Tully-Fisher (TF) measurements for some 3000 late-type galaxies in the field and in 76 clusters distributed throughout the sky between 10 and 200\h Mpc. The cluste…
Near-infrared observations of galaxies in Pisces-Perseus: III. Global scaling relations of disks and bulges
G. Moriondo, R. Giovanelli, M. Haynes
We determine the parameters of scaling relations analogous to the Fundamental Plane of elliptical galaxies for the bulges and disks of a sample of 40 spiral galaxies. To this end w…
Spiral Galaxies and the Peculiar Velocity Field
R. Giovanelli
Monopole and dipole signatures of the peculiar velocity field as derived from the SFI sample of field spirals and the SCI and SC2 samples of cluster spirals are presented. The mono…
Near-infrared observations of galaxies in Pisces-Perseus: II. Extinction effects and disk opacity
G. Moriondo, R. Giovanelli, M. P. Haynes
We study the correlations with inclination of H-band disk and bulge structural parameters and I-H colour profiles for a sample of 154 spiral galaxies, in order to detect possible e…