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Deep Hα Observations of NGC 253: a Very Extended and Possibly Declining Rotation Curve?
J. Hlavacek-Larrondo, C. Carignan, O. Daigle +4
This study presents a deep Hα kinematical analysis of the Sculptor Group galaxy NGC253. The Fabry-Perot data were taken with the 36-cm Marseille Telescope in La Silla, Chile, using…
Hydrodynamics of high-redshift galaxy collisions: From gas-rich disks to dispersion-dominated mergers and compact spheroids
Frederic Bournaud, Damien Chapon, Romain Teyssier +7
Disk galaxies at high redshift (z~2) are characterized by high fractions of cold gas, strong turbulence, and giant star-forming clumps. Major mergers of disk galaxies at high redsh…
An improved method for statistical studies of the internal kinematics of HII regions: the case of M 83
Javier Blasco-Herrera, Kambiz Fathi, John E. Beckman +8
We present the integrated Halpha emission line profile for 157 HII regions in the central 3.4' x 3.4' of the galaxy M 83 (NGC 5236). Using the Fabry-Perot interferometer GHaFaS, on…
Kinematics of galaxies in Compact Groups. Studying the B-band Tully-Fisher relation
S. Torres-Flores, C. Mendes de Oliveira, P. Amram +4
We obtained new Fabry-Perot data cubes and derived velocity fields, monochromatic and velocity dispersion maps for 28 galaxies in the Hickson compact groups 37, 40, 47, 49, 54, 56,…