Buscar
Mostrando ítems 51-60 de 119
Star formation in H I tails: HCG 92, HCG 100 and six interacting systems
(WILEY-BLACKWELLHOBOKEN, 2012)
We present new Gemini spectra of 14 new objects found within the H?i tails of Hickson Compact Groups (HCGs) 92 and 100. Nine of them are Galaxy Evolution Explorer (GALEX) far-ultraviolet (FUV) and near-ultraviolet (NUV) ...
Are compact groups hostile towards faint galaxies?
(EDP Sciences, 2014-12)
Aims: The goal of this work is to understand whether the extreme environment of compact groups (CGs) can affect the distribution and abundance of faint galaxies around them. Methods: We performed an analysis of the faint ...
Small deviations from Gaussianity and the galaxy cluster abundance evolution
(Univ Chicago PressChicagoEUA, 2000)
Spiral structure of the third galactic quadrant and the solution to the Canis Major debate
(Wiley Blackwell Publishing, Inc, 2006-05)
With the discoveryofthe Sagittarius dwarf spheroidal, agalaxy caughtinthe processofmerging with the Milky Way, the hunt for other such accretion events has become a very active field of astrophysical research. The ...
Star-forming regions and the metallicity gradients in the tidal tails: the case of NGC 92
(Oxford University PressOxford, 2014)
We present new Gemini/GMOS spectroscopic and archival imaging data of the interacting
galaxy NGC 92, which is part of a compact group and displays an extended tidal tail.We have
studied the physical properties of 20 ...
The star cluster frequency throughout the Large Magellanic Cloud
(Wiley Blackwell Publishing, Inc, 2014-01)
We address the issue of the variation in star cluster frequency (CF) in the Large Magellanic Cloud (LMC) in terms of cluster spatial distribution. We adopt the LMC regions traced by Harris & Zaritsky and use an updated ...
Morphological properties of superclusters of galaxies
(WILEY-BLACKWELL, 2011)
We studied superclusters of galaxies in a volume-limited sample extracted from the Sloan Digital Sky Survey Data Release 7 and from mock catalogues based on a semi-analytical model of galaxy evolution in the Millennium ...
A FOSSIL BULGE GLOBULAR CLUSTER REVEALED BY VERY LARGE TELESCOPE MULTI-CONJUGATE ADAPTIVE OPTICS
(IOP PUBLISHING LTD, 2011)
The globular cluster HP 1 is projected on the bulge, very close to the Galactic center. The Multi-Conjugate Adaptive Optics Demonstrator on the Very Large Telescope allowed us to acquire high-resolution deep images that, ...
Measurement of the epicycle frequency in the Galactic disc and initial velocities of open clusters
(WILEY-BLACKWELL, 2008)
A new method to measure the epicycle frequency kappa in the Galactic disc is presented. We make use of the large data base on open clusters completed by our group to derive the observed velocity vector (amplitude and ...
Mass profile and dynamical status of the z ~ 0.8 galaxy cluster LCDCS 0504
(EDP SciencesLes Ulis, 2014)
Constraints on the mass distribution in high-redshift clusters of galaxies are currently not very strong.
Aims. We aim to constrain the mass profile, M(r), and dynamical status of the z ∼ 0.8 LCDCS 0504 cluster of galaxies ...