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107 papers · 2 filters
Relative velocity of dark matter and barions in clusters of galaxies and measurements of their peculiar velocities
Klaus Dolag, Rashid Sunyaev
The increasing sensitivity of current experiments, which nowadays routinely measure the thermal SZ effect within galaxy clusters, provide the hope that peculiar velocities of indiv…
Meridional tilt of the stellar velocity ellipsoid during bar buckling instability
Kanak Saha, Daniel Pfenniger, Ronald E. Taam
The structure and evolution of the stellar velocity ellipsoid plays an important role in shaping galaxies undergoing bar driven secular evolution and the eventual formation of a bo…
A precise and accurate determination of the cosmic microwave background temperature at z=0.89
S. Muller, A. Beelen, J. H. Black +6
According to the Big Bang theory and as a consequence of adiabatic expansion of the Universe, the temperature of the cosmic microwave background (CMB) increases linearly with redsh…
Measuring the Dark Matter Halo Mass of X-ray AGN at z~1 using photometric redshifts
G. Mountrichas, A. Georgakakis, A. Finoguenov +6
Data from the AEGIS, COSMOS and ECDFS surveys are combined to infer the bias and dark matter halo mass of moderate luminosity [LX(2-10 keV) = 42.9 erg s-1] X-ray AGN at z~1 via the…
Planck Intermediate Results. XI: The gas content of dark matter halos: the Sunyaev-Zeldovich-stellar mass relation for locally brightest galaxies
Planck Collaboration, P. A. R. Ade, N. Aghanim +194
We present the scaling relation between Sunyaev-Zeldovich (SZ) signal and stellar mass for almost 260,000 locally brightest galaxies (LBGs) selected from the Sloan Digital Sky Surv…
MegaMorph - multi-wavelength measurement of galaxy structure: complete Sérsic profile information from modern surveys
Boris Häußler, Steven P. Bamford, Marina Vika +13
In this paper, we demonstrate a new method for fitting galaxy profiles which makes use of the full multi-wavelength data provided by modern large optical-near-infrared imaging surv…