Concept
Satellite galaxy
Related publications (217)
First galaxy-galaxy lensing measurement of satellite halo mass in the CFHT Stripe-82 Survey
Jean-Paul Richard Kneib, Huanyuan Shan
We select satellite galaxies from the galaxy group catalogue constructed with the Sloan Digital Sky Survey spectroscopic galaxies and measure the tangential shear around these galaxies with the source catalogue extracted from the Canada-France-Hawaii Teles ...
Wiley-Blackwell2014Evidence for major mergers of galaxies at 2 less than or similar to z < 4 in the VVDS and VUDS surveys
Context. The mass assembly of galaxies can proceed through different physical processes. Here we report on the spectroscopic identification of close physical pairs of galaxies at redshifts 2 less than or similar to z < 4 and discuss the impact of major mer ...
EDP Sciences2014Understanding The Unique Assembly History Of Central Group Galaxies
Central galaxies (CGs) in massive halos live in unique environments with formation histories closely linked to that of the host halo. In local clusters, they have larger sizes (R-e) and lower velocity dispersions (sigma) at fixed stellar mass M-*, and much ...
American Astronomical Society2014VLT/FLAMES spectroscopy of red giant branch stars in the Fornax dwarf spheroidal galaxy
Context. Fornax is one of the most massive dwarf spheroidal galaxies in the Local Group. The Fornax field star population is dominated by intermediate age stars but star formation was going on over almost its entire history. It has been proposed that Forna ...
EDP Sciences2014Planck 2013 results. XXX. Cosmic infrared background measurements and implications for star formation
Xin Chen, Julien Lesgourgues, Fabio Finelli
We present new measurements of cosmic infrared background (CIB) anisotropies using Planck. Combining HFI data with IRAS, the angular auto-and cross-frequency power spectrum is measured from 143 to 3000 GHz, and the auto-bispectrum from 217 to 545 GHz. The ...
Edp Sciences S A2014The zCOSMOS redshift survey: evolution of the light in bulges and discs since z similar to 0.8
Jean-Paul Richard Kneib, Yatao Peng, Richard Massey, Angelo Bongiorno
We studied the chronology of galactic bulge and disc formation by analysing the relative contributions of these components to the B-band rest-frame luminosity density at different epochs. We present the first estimate of the evolution of the fraction of re ...
EDP Sciences2014A PCA-based automated finder for galaxy-scale strong lenses
Jean-Paul Richard Kneib, Frédéric Courbin, Georges Meylan, Rémy Elie Joseph
We present an algorithm using principal component analysis (PCA) to subtract galaxies from imaging data and also two algorithms to find strong, galaxy-scale gravitational lenses in the resulting residual image. The combined method is optimised to find full ...
EDP Sciences2014Influence of physical galaxy properties on Ly alpha escape in star-forming galaxies
Jean-Paul Richard Kneib, Hakim Atek
Context. Among the different observational techniques used to select high-redshift galaxies, the hydrogen recombination line Lyman-alpha (Ly alpha) is of particular interest because it gives access to the measurement of cosmological quantities such as the ...
EDP Sciences2014The Lyman Alpha Reference Sample. Ii. Hubble Space Telescope Imaging Results, Integrated Properties, And Trends
We report new results regarding the Ly alpha output of galaxies, derived from the Lyman Alpha Reference Sample, and focused on Hubble Space Telescope imaging. For 14 galaxies we present intensity images in Ly alpha, H alpha, and UV, and maps of H alpha/H b ...
American Astronomical Society2014The Epoch Of Assembly Of Two Galaxy Groups: A Comparative Study
Nearby galaxy groups of comparable mass to the Local Group show global variations that reflect differences in their evolutionary history. Satellite galaxies in groups have higher levels of gas deficiency as the distance to their host decreases. The well es ...
Iop Publishing Ltd2013