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- Centre National de la Recherche ScientifiqueFR357 papers
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20 papers · 2 filters
A Correlation Between CO Linewidth and Starburst Age in Barred Spiral Galaxies
T. Contini, H. Wozniak, S. Considere +1
New CO(1-0) and CO(2-1) profiles complemented by data from the literature are used to obtain CO linewidths for 29 barred spiral galaxies with young nuclear starbursts. The ages of…
The morphological segregation of galaxies in clusters. III. The distant cluster Cl0939+4713 (Abell 851)
S. Andreon, E. Davoust, T. Heim
We have performed an isophotal analysis of galaxies in the distant (z=0.4) cluster Cl0939+4713 (Abell 851), using post-refurbished Hubble Space Telescope images. Morphological type…
Two-fluid model for VLBI jets. I. Homogeneous and stationary synchrotron emission simulations
V. Despringre, D. Fraix-Burnet
In this series of papers, we develop a two-fluid model for VLBI jets. The idea is that the jet itself is non- or mildly-relativistic (electrons and protons), while the radiating bl…
Structural classification of galaxies in clusters
Stefano Andreon, Emmanuel Davoust
The traditional method of morphological classification, by visual inspection of images of uniform quality and by reference to standards for each type, is critically examined. The r…
Recent Advances in Gravitational Lensing
Y. Mellier, L. van Waerbeke, F. Bernardeau +1
The gravitational lensing effect is one of the most promising tools for cosmology. Indeed it probes directly the total mass distribution in large-scale structures and can as well p…
Wide-field CCD imaging at CFHT: the MOCAM example
J. -C. Cuillandre, Y. Mellier, J. -P. Dupin +5
We describe a new 4096x4096 pixel CCD mosaic camera (MOCAM) available at the prime focus of the Canada-France-Hawaii Telescope (CFHT). The camera is a mosaic of four 2048x2048$ Lor…