59 citations · 315 across the 13 of their papers we have counts for
13 papers
Reconciling concentration to virial mass relations
Dominik Leier, Ignacio Ferreras, Andrea Negri +1
The concentration-virial mass (c-M) relation is a fundamental scaling relation within the standard cold dark matter (CDM) framework well established in numerical simulations. Ho…
Observed versus Simulated Halo c-Mvir Relations
Dominik Leier, Ignacio Ferreras, Andrea Negri +1
The concentration - virial mass relation is a well-defined trend that reflects the formation of structure in an expanding Universe. Numerical simulations reveal a marked correlatio…
The lens SW05 J143454.4+522850: a fossil group at redshift 0.6?
Philipp Denzel, Onur Çatmabacak, Jonathan P. Coles +8
Fossil groups are considered the end product of natural galaxy group evolution in which group members sink towards the centre of the gravitational potential due to dynamical fricti…
Strong Gravitational Lensing and the Stellar IMF of Early-type Galaxies
Dominik Leier, Ignacio Ferreras, Prasenjit Saha +3
Systematic variations of the IMF in early-type galaxies, and their connection with possible drivers such as velocity dispersion or metallicity, have been much debated in recent yea…
Light versus dark in strong-lens galaxies: Dark matter haloes that are rounder than their stars
Claudio Bruderer, Justin I. Read, Jonathan P. Coles +4
We measure the projected density profile, shape and alignment of the stellar and dark matter mass distribution in 11 strong-lens galaxies. We find that the projected dark matter de…
Diagnostics of Baryonic Cooling in Lensing Galaxies
Dominik Leier, Ignacio Ferreras, Prasenjit Saha
Theoretical studies of structure formation find an inverse proportionality between the concentration of dark matter haloes and virial mass. This trend has been recently confirmed f…
Resolving the baryon-fraction profile in lensing galaxies
Dominik Leier, Ignacio Ferreras, Prasenjit Saha +1
We show the radial dependence of stellar baryon fraction curves derived for 21 lensing galaxies from the CfA-Arizona Space Telescope LEns Survey by means of stellar population synt…
Constraining the low-mass end of the Initial Mass Function with Gravitational Lensing
Ignacio Ferreras, Prasenjit Saha, Dominik Leier +2
The low-mass end of the stellar Initial Mass Function (IMF) is constrained by focusing on the baryon-dominated central regions of strong lensing galaxies. We study in this letter t…
A Lensing View On The Fundamental Plane
Dominik Leier
For lensing galaxies we introduce a formal velocity dispersion sigma_lens, based on enclosed mass and the virial theorem. This is calculated from an ensemble of pixelated lens mode…
Solar Energetic Particle Spectrum on 13 December 2006 Determined by IceTop
R. Abbasi
On 13 December 2006 the IceTop air shower array at the South Pole detected a major solar particle event. By numerically simulating the response of the IceTop tanks, which are thick…
Search for Point Sources of High Energy Neutrinos with Final Data from AMANDA-II
The IceCube Collaboration
We present a search for point sources of high energy neutrinos using 3.8 years of data recorded by AMANDA-II during 2000-2006. After reconstructing muon tracks and applying selecti…
Search for Ultra High-Energy Neutrinos with AMANDA-II
The IceCube Collaboration, M. Ackermann
A search for diffuse neutrinos with energies in excess of 10^5 GeV is conducted with AMANDA-II data recorded between 2000 and 2002. Above 10^7 GeV, the Earth is essentially opaque…
Search for neutrino-induced cascades from gamma-ray bursts with AMANDA
IceCube Collaboration, A. Achterberg
Using the neutrino telescope AMANDA-II, we have conducted two analyses searching for neutrino-induced cascades from gamma-ray bursts. No evidence of astrophysical neutrinos was fou…