Results 1 to 10 of about 116,553 (164)

Global HI profiles of spiral galaxies [PDF]

open access: yes, 1995
In this paper we present short HI synthesis observations of 57 galaxies without HI information in the RC3. These are a by-product of a large survey with the WSRT of the neutral hydrogen gas in spiral and irregular galaxies.
Kamphuis, J. J.   +2 more
core   +13 more sources

A new chemodynamical tool to study the evolution of galaxies in the local Universe: a quick and accurate numerical technique to compute gas cooling rate for any chemical composition [PDF]

open access: yes, 2007
We have developed a quick and accurate numerical tool to compute gas cooling whichever its chemical composition.Comment: 3 pages, 2 figures, to appear in the Proceedings of "Heating vs.
Champavert, Nicolas, Wozniak, Hervé
core   +2 more sources

Tales within Tales and Cutoffs within Cutoffs: What Sets the Mass Scale for Galaxies? [PDF]

open access: yes, 2001
Please answer ``yes'' or ``no'': 1. Does the mass function for clusters of galaxies cut off exponentially? 2. Does the luminosity function for galaxies cut off exponentially? 3. Is the dependence of virial velocity on galaxy luminosity a power law?
Schechter, Paul L.
core   +3 more sources

Spiral galaxies with large optical warps [PDF]

open access: yes, 1999
As a result of our statistical study of 540 edge-on galaxies, we present here the images and preliminary statistical analysis of a sub-sample of 60 galaxies, that were selected to be S-type warped spirals.
Combes, Francoise, Reshetnikov, Vladimir
core   +1 more source

Photometric and kinematical study of nearby groups of galaxies around IC 65 and NGC 6962 [PDF]

open access: yes, 2006
We discuss the structure, galaxy content and kinematics of a sparse, probably collapsing group around IC 65 and an evolved rich group around NGC 6962Comment: Poster contribution on 2 pages with 2 figures to be published in ESO Astrophysics Symposia ...
Tago, E., Vennik, J.
core   +2 more sources

Observed Properties of Dark Matter on Small Spatial Scales [PDF]

open access: yes, 2007
The nature of dark matter is one of the outstanding questions of astrophysics. The internal motions of member stars reveal that the lowest luminosity galaxies in the Local Group are the most dark-matter dominated.
Benson   +4 more
core   +1 more source

The black hole mass of BL Lacs from stellar velocity dispersion of the host galaxy [PDF]

open access: yes, 2001
We present the first results from our on-going program to estimate black hole masses [M(BH)] of nearby BL Lac objects. The estimates are based on stellar velocity dispersion (sigma) of the BL Lac host galaxies from optical spectroscopy, and the recently ...
Falomo, Renato   +2 more
core   +3 more sources

Optical surface photometry of radio galaxies - II. Observations and data analysis [PDF]

open access: yes, 1999
Optical imaging observations for 50 radio galaxies are presented. For each object isophotal contours, photometric profiles, structural parameters (position angle, ellipticity, Fourier coefficients), and total magnitudes are given.
Falomo, R.   +3 more
core   +1 more source

A Progress Report on the Caltech Faint Galaxy Redshift Survey [PDF]

open access: yes, 2000
I review recent progress on determining the spectral energy distributions and luminosity functions for galaxies in the large magnitude limited sample in the region of the HDF-North of the Caltech Faint Galaxy Redshift Survey.Comment: Invited contribution
Cohen, Judith
core   +2 more sources

The Symmetry, Color and Morphology of Galaxies in the Hubble Deep Field [PDF]

open access: yes, 1998
We present a new method of utilizing the color and asymmetry values for galaxies in the Hubble Deep Field to determine both their morphological features and physical parameters.
Bershady, Matthew A.   +1 more
core   +3 more sources

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