Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR2.8k papers
- Heidelberg UniversityDE2.1k papers
- University of OxfordGB2k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR2k papers
- European Organization for Nuclear ResearchCH2k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR2k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di BolognaIT1.9k papers
- University of EdinburghGB1.9k papers
- The University of TokyoJP1.9k papers
- Ludwig-Maximilians-Universität MünchenDE1.9k papers
- University of ManchesterGB1.9k papers
- Institute of Nuclear Physics, Polish Academy of SciencesPL1.8k papers
645 papers · 1 filter
A Sensitive Search For [NII] Emission in a z=6.4 Quasar Host Galaxy
F. Walter, A. Weiss, D. A. Riechers +4
We present a sensitive search for the ^3P_1->^3P_0 ground state fine structure line at 205 microns of ionized nitrogen ([NII]) in one of the highest redshift quasars (J1148+5251 at…
Active Galactic Nuclei: Sources for ultra high energy cosmic rays?
P. L. Biermann, J. K. Becker, L. Caramete +11
The origin of ultra high energy cosmic rays promises to lead us to a deeper understanding of the structure of matter. This is possible through the study of particle collisions at c…
New CO detections of lensed submillimeter galaxies in A2218: Probing molecular gas in the LIRG regime at high redshift
K. K. Knudsen, R. Neri, J. -P. Kneib +1
Context: Submillimeter galaxies (SMGs) are distant, dusty galaxies undergoing star formation at prodigious rates. Recently there has been major progress in understanding the nature…
Nucleosynthetic osmium isotope anomalies in acid leachates of the Murchison meteorite
L. Reisberg, N. Dauphas, A. Luguet +3
We present osmium isotopic results obtained by sequential leaching of the Murchison meteorite, which reveal the existence of very large internal anomalies of nucleosynthetic origin…
The ages of Galactic globular clusters in the context of self-enrichment
T. Decressin, H. Baumgardt, P. Kroupa +2
A significant fraction of stars in globular clusters (about 70%-85%) exhibit peculiar chemical patterns with strong abundance variations in light elements along with constant abund…
Sources of contamination to weak lensing tomography: redshift-dependent shear measurement bias
Elisabetta Semboloni, Ismael Tereno, Ludovic van Waerbeke +1
The current methods available to estimate gravitational shear from astronomical images of galaxies introduce systematic errors which can affect the accuracy of weak lensing cosmolo…
Structure of the SMC - Stellar component distribution from 2MASS data
I. Gonidakis, E. Livanou, E. Kontizas +5
The spatial distribution of the SMC stellar component is investigated from 2MASS data. The morphology of the different age populations is presented. The center of the distribution…
New Limits on Sterile Neutrinos from Suzaku Observations of the Ursa Minor Dwarf Spheroidal Galaxy
Michael Loewenstein, Alexander Kusenko, Peter L. Biermann
We present results of our search for X-ray line emission associated with the radiative decay of the sterile neutrino, a well-motivated dark matter candidate, in Suzaku Observatory…
Cosmological Systematics Beyond Nuisance Parameters : Form Filling Functions
T. D. Kitching, A. Amara, F. B. Abdalla +2
In the absence of any compelling physical model, cosmological systematics are often misrepresented as statistical effects and the approach of marginalising over extra nuisance syst…
A New Window of Exploration in the Mass Spectrum: Strong Lensing by Galaxy Groups in the SL2S
M. Limousin, R. Cabanac, R. Gavazzi +21
The existence of strong lensing systems with Einstein radii (Re) covering the full mass spectrum, from ~1-2" (produced by galaxy scale dark matter haloes) to >10" (produced by gala…
Diagnoses to unravel secular hydrodynamical processes in rotating main sequence stars
T. Decressin, S. Mathis, A. Palacios +4
(Abridged) We present a detailed analysis of the main physical processes responsible for the transport of angular momentum and chemical species in the radiative regions of rotating…
A strong optical flare before the rising afterglow of GRB 080129
J. Greiner, T. Krühler, S. McBreen +11
We report on GROND observations of a 40 sec duration (rest-frame) optical flare from GRB 080129 at redshift 4.349. The rise- and decay time follow a power law with indices +12 and…
The evolution of two stellar populations in globular clusters I. The dynamical mixing timescale
T. Decressin, H. Baumgardt, P. Kroupa
We investigate the long-term dynamical evolution of two distinct stellar populations of low-mass stars in globular clusters in order to study whether the energy equipartition proce…
The gravitational lens J1131-1231 - How to avoid missing an opportunity
Olaf Wucknitz, Filomena Volino
So far the lens J1131-1231 has been studied only at optical and X-ray wavelengths. A detection in the radio was almost missed as a result of an incorrect position and archive probl…
CARS: the CFHTLS-Archive-Research Survey; I. Five-band multi-colour data from 37 sq. deg. CFHTLS-Wide observations
T. Erben, H. Hildebrandt, M. Lerchster +10
We present the CFHTLS-Archive-Research Survey (CARS). It is a virtual multi-colour survey based on public archive images from the CFHT-Legacy-Survey. Our main scientific interests…
The Spitzer c2d Legacy Results: Star Formation Rates and Efficiencies; Evolution and Lifetimes
Neal J. Evans, Michael M. Dunham, Jes K. Jørgensen +15
(Abridged) The c2d Spitzer Legacy project obtained images and photometry with both IRAC and MIPS instruments for five large, nearby molecular clouds. This paper combines informatio…
The cosmology dependence of weak lensing cluster counts
Laura Marian, Robert E. Smith, Gary M. Bernstein
We present the main results of a numerical study of weak lensing cluster counting. We examine the scaling with cosmology of the projected-density-peak mass function. Our main concl…
Dependence of cosmic shear covariances on cosmology - Impact on parameter estimation
Tim Eifler, Peter Schneider, Jan Hartlap
In cosmic shear likelihood analyses the covariance is most commonly assumed to be constant in parameter space. Therefore, when calculating the covariance matrix (analytically or fr…
The influence of star clusters on galactic disks: new insights on star-formation in galaxies
Pavel Kroupa
Stars form in embedded star clusters which play a key role in determining the properties of a galaxy's stellar population. Physical mechanisms discussed in this paper are runaway s…
An enigmatic HI cloud
L. Dedes, C. Dedes, P. W. M Kalberla
The discovery of an HI cloud with peculiar properties at equatorial coordinates (J2000) ra=07h49m, dec=04d30m is presented. The HI object was detected at 21cm using the 300-m NAIC…
Globular Cluster Systems in Nearby Dwarf Galaxies: I. HST/ACS Observations and Dynamical Properties of Globular Clusters at Low Environmental Density
Iskren Y. Georgiev, Thomas H. Puzia, Michael Hilker +1
We investigate the old globular cluster (GC) population of 68 faint (Mv>-16 mag) dwarf galaxies located in the halo regions of nearby (<12 Mpc) loose galaxy groups and in the field…
Molecular Gas in a Submillimeter Galaxy at z=4.5: Evidence for a Major Merger at 1 Billion Years after the Big Bang
E. Schinnerer, C. L. Carilli, P. Capak +8
We report the detection of CO molecular line emission in the z=4.5 millimeter-detected galaxy COSMOS_J100054+023436 (hereafter: J100+0234) using the IRAM Plateau de Bure interferom…
Kinematic modeling of disk galaxies III. The warped "Spindle" NGC 2685
G. I. G. Jozsa, T. A. Oosterloo, R. Morganti +2
This is the third of a series of papers in which the structure and kinematics of disk galaxies is studied. Employing direct tilted-ring fits to the data cube as introduced in Paper…
Parity Dependence in Strong Lens Systems as a Probe of Dark Matter Substructure
Jacqueline Chen
The amount of mass in small, dark matter clumps within galaxies (substructure) is an important test of cold dark matter. One approach to measuring the substructure mass fraction is…