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37 papers · 2 filters
Star Formation History at the Centers of Lenticular Galaxies with Bars and Purely Exponential Outer Disks from SAURON Data
Olga K. Sil'chenko, Igor V. Chilingarian
We have investigated the stellar population properties in the central regions of a sample of lenticular galaxies with bars and single-exponential outer stellar disks using the data…
THINGS about MOND
G. Gentile, B. Famaey, W. J. G. de Blok
We present the analysis of 12 high-resolution galactic rotation curves from The HI Nearby Galaxy Survey (THINGS) in the context of modified Newtonian dynamics (MOND). These rotatio…
The kinematic identification of a thick stellar disc in M31
M. L. M. Collins, S. C. Chapman, R. A. Ibata +6
We present the first characterization of a thick disc component in the Andromeda galaxy (M31) using kinematic data from the DEIMOS multi-object spectrograph instrument on Keck II.…
Sustaining star formation rates in spiral galaxies - Supernova-driven turbulent accretion disk models applied to THINGS galaxies
B. Vollmer, A. Leroy
Gas disks of spiral galaxies can be described as clumpy accretion disks without a coupling of viscosity to the actual thermal state of the gas. The model description of a turbulent…
The photometric properties of a vast stellar substructure in the outskirts of M33
Alan W. McConnachie, Annette M. N. Ferguson, Michael J. Irwin +5
We have surveyed sq.degrees surrounding M33 with CFHT MegaCam in the g and i filters, as part of the Pan-Andromeda Archaeological Survey. Our observations are deep enough t…
N-body simulation of the Stephan's Quintet
Florent Renaud, Philip N. Appleton, C. Kevin Xu
The evolution of compact groups of galaxies may represent one of the few places in the nearby universe in which massive galaxies are being forged through a complex set of processes…