NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-05-27 T05:49:25 PDT
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For refcode 2006MNRAS.366..812C:
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NED Abstract

Copyright by Royal Astronomical Society. 2006MNRAS.366..812C A Virgo high-resolution H{alpha} kinematical survey - II. The Atlas Chemin, L.; Balkowski, C.; Cayatte, V.; Carignan, C.; Amram, P.; Garrido, O.; Hernandez, O.; Marcelin, M.; Adami, C.; Boselli, A.; Boulesteix, J. Abstract. A catalogue of ionized gas velocity fields for a sample of 30 spiral and irregular galaxies of the Virgo cluster has been obtained by using 3D optical data. The aim of this survey is to study the influence of high-density environments on the gaseous kinematics of local cluster galaxies. Observations of the H{alpha} line by means of Fabry-Perot interferometry have been performed at the Canada-France-Hawaii Telescope, European Southern Observatory 3.6-m telescope, Observatoire de Haute-Provence 1.93-m telescope and Observatoire du mont Megantic telescope at angular and spectral samplings from 0.4 to 1.6arcsec and 7 to 16kms^-1^. A recently developed, automatic and adaptive spatial binning technique is used to reach a nearly constant signal-to-noise ratio (S/N) over the whole field of view, allowing us to keep a high spatial resolution in high-S/N regions and extend the detection of signal in low-S/N regions. This paper is part of a series and presents the integrated emission-line and velocity maps of the galaxies. Both H{alpha} morphologies and kinematics exhibit signs of perturbations in the form of, for example, external filaments, inner and nuclear spiral- and ring-like structures, inner kinematical twists, kinematical decoupling of a nuclear spiral, streaming motions along spiral arms and misalignment between kinematical and photometric orientation axes. Key words: instrumentation: interferometers, techniques: high angular resolution, galaxies: clusters: individual: Virgo, galaxies: kinematics and dynamics
Retrieve 31 NED objects in this reference.
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