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481 papers · 1 filter
Optical photometric and polarimetric investigation of NGC 1931
A. K. Pandey, C. Eswaraiah, Saurabh Sharma +7
We present optical photometric and polarimetric observations of stars towards NGC 1931 with the aim to derive the cluster parameters such as distance, reddening, age and luminosity…
First observation of the decays and
LHCb collaboration, R. Aaij, C. Abellan Beteta +621
The first observation of the decays and are reported using an integrated luminosity of 1.0 fb recorded by the…
Diffuse light in the young cluster of galaxies CL J1449+0856 at z=2.07
C. Adami, F. Durret, L. Guennou +1
Cluster properties do not seem to be changing significantly during their mature evolution phase, for example they do not seem to show strong dynamical evolution at least up to z~0.…
Multi-channel search for squarks and gluinos in sqrt(s)=7 TeV pp collisions with the ATLAS detector
ATLAS Collaboration
A search for supersymmetric particles in final states with zero, one, and two leptons, with and without jets identified as originating from b-quarks, in 4.7 fb-1 of sqrt(s)=7 TeV p…
The Twitter of Babel: Mapping World Languages through Microblogging Platforms
Delia Mocanu, Andrea Baronchelli, Bruno Gonçalves +2
Large scale analysis and statistics of socio-technical systems that just a few short years ago would have required the use of consistent economic and human resources can nowadays b…
The X-ray-Optical Relations for Nine Clusters at z = 0.7-1.1
Nick Rumbaugh, Dale D. Kocevski, Roy R. Gal +4
We use Chandra observations of nine optically and X-ray selected clusters in five different structures at z ~ 0.7-1.1 from the Observations of Redshift Evolution in Large-Scale Env…
Distant galaxy clusters in the XMM Large Scale Structure survey
J. P. Willis, N. Clerc, M. N. Bremer +12
(Abridged) Distant galaxy clusters provide important tests of the growth of large scale structure in addition to highlighting the process of galaxy evolution in a consistently defi…
Dynamical analysis of strong-lensing galaxy groups at intermediate redshift
R. P. Muñoz, V. Motta, T. Verdugo +8
We present VLT spectroscopic observations of 7 discovered galaxy groups between 0.3<z<0.7. The groups were selected from the Strong Lensing Legacy Survey (SL2S), a survey that cons…
Large time behavior for the heat equation on Carnot groups
Francesco Rossi
We first generalize a decomposition of functions on Carnot groups as linear combinations of the Dirac delta and some of its derivatives, where the weights are the moments of the fu…
An investigation of star formation and dust attenuation in major mergers using ultraviolet and infrared data
F. -T. Yuan, T. T. Takeuchi, Y. Matsuoka +3
Merger processes play an important role in galaxy formation and evolution. To study the influence of merger processes on the evolution of dust properties and cosmic star formation…
Measurement of the combined rapidity and dependence of dijet azimuthal decorrelations in collisions at TeV
D0 Collaboration
We present the first combined measurement of the rapidity and transverse momentum dependence of dijet azimuthal decorrelations, based on the recently proposed quantity . Th…
ARGOS II: The Galactic Bulge Survey
K. Freeman, M. Ness, E. Wylie de Boer +8
We describe the motivation, field locations and stellar selection for the ARGOS spectroscopic survey of 28,000 stars in the bulge and inner disk of the Milky Way galaxy across lati…
ARGOS III: Stellar Populations in the Galactic Bulge of the Milky Way
M. Ness, K. Freeman, E. Athanassoula +7
We present the metallicity results from the ARGOS spectroscopic survey of the Galactic bulge. Our aim is to understand the formation of the Galactic bulge: did it form via mergers,…
Libration-induced mean flow in a spherical shell
Alban Sauret, Stéphane Le Dizès
We investigate the flow in a spherical shell subject to a time harmonic oscillation of its rotation rate, also called longitudinal libration, when the oscillation frequency is larg…
The intriguing life of star-forming galaxies in the redshift range 1 < z < 2 using MASSIV
P. Amram, C. Lopez-Sanjuan, B. Epinat +13
MASSIV (Massiv Assembly Survey with SINFONI in VVDS) is an ESO large program which consists of 84 star-forming galaxies, spanning in a wide range of stellar masses, observed with t…
Forced generation of simple and double emulsions in all-aqueous system
Alban Sauret, Ho Cheung Shum
We report an easy-to-implement method that allows the direct generation of water-in-water (w/w) single emulsions. The method relies on direct perturbation of the pressure that driv…
On two conjectures of Maurer concerning basis graphs of matroids
Jérémie Chalopin, Victor Chepoi, Damian Osajda
We characterize 2-dimensional complexes associated canonically with basis graphs of matroids as simply connected triangle-square complexes satisfying some local conditions. This pr…
Gauge invariant composite fields out of connections, with examples
Cédric Fournel, Jordan François, Serge Lazzarini +1
In this paper we put forward a systematic and unifying approach to construct gauge invariant composite fields out of connections. It relies on the existence in the theory of a grou…
Series expansion of the quantum admittance in mesoscopic systems
A. Crépieux
The quantum admittance of an interacting/coupled mesoscopic system and its series expansion are obtained by using the refermionization method. With the help of these non-perturbati…
A search for prompt lepton-jets in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector
ATLAS Collaboration
We present a search for a light (mass < 2 GeV) boson predicted by Hidden Valley supersymmetric models that decays into a final state consisting of collimated muons or electrons, de…
HeII emitters in the VIMOS VLT Deep Survey: PopIII star formation or peculiar stellar populations in galaxies at 2<z<4.6?
P. Cassata, O. Le Fevre, S. Charlot +15
The aim of this work is to identify HeII emitters at 2<z<4.6 and to constrain the source of the hard ionizing continuum that powers the HeII emission. We have assembled a sample of…
Measurement of CP observables in B0 -> D K*0 with D -> K+ K-
LHCb collaboration, R. Aaij, C. Abellan Beteta +625
The decay B0 -> D K*0 and the charge conjugate mode are studied using 1.0fb-1 of pp collision data collected by the LHCb experiment at sqrt(s) = 7TeV in 2011. The CP asymmetry betw…
Observation of Associated Near-side and Away-side Long-range Correlations in sqrt(s_NN)=5.02 TeV Proton-lead Collisions with the ATLAS Detector
ATLAS Collaboration
Two-particle correlations in relative azimuthal angle (Delta-phi) and pseudorapidity (Delta-eta) are measured in sqrt(s_NN) = 5.02 TeV p+Pb collisions using the ATLAS detector at t…
Aging of asymmetric dynamics on the random energy model
Pierre Mathieu, Jean-Christophe Mourrat
We show aging of Glauber-type dynamics on the random energy model, in the sense that we obtain the scaling limits of the clock process and of the age process. The latter encodes th…