Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR2.6k papers
- University of California, BerkeleyUS2.5k papers
- The Ohio State UniversityUS2.3k papers
- University of ArizonaUS2.1k papers
- Lawrence Berkeley National LaboratoryUS2.1k papers
- SLAC National Accelerator LaboratoryUS2k papers
- University of California, IrvineUS2k papers
- Yale UniversityUS1.9k papers
- University of Wisconsin–MadisonUS1.9k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR1.9k papers
- McGill UniversityCA1.9k papers
- University of ChicagoUS1.9k papers
163 papers · 1 filter
The Era of Reionization
Piero Madau
In popular cold dark matter cosmological scenarios, stars may have first appeared in significant numbers around a redshift of 10 or so, as the gas within protogalactic halos with v…
How Massive Single Stars End their Life
A. Heger, C. L. Fryer, S. E. Woosley +2
How massive stars die -- what sort of explosion and remnant each produces -- depends chiefly on the masses of their helium cores and hydrogen envelopes at death. For single stars,…
Magnetic Vacancy Percolation in Dilute Antiferromagnets
W. C. Barber, F. Ye, D. P. Belanger +1
Neutron scattering experiments at the magnetic vacancy percolation threshold concentration, x_v, using the random-field Ising crystal Fe(0.76)Zn(0.24)F2, show stability of the tran…
An Intrinsic Baldwin Effect in the H-beta Broad Emission Line in the Spectrum of NGC 5548
Karoline M. Gilbert, Bradley M. Peterson
We investigate the possibility of an intrinsic Baldwin Effect (i.e.,nonlinear emission-line response to continuum variations) in the broad H-beta emission line of the active galaxy…
Observation of the strange sea in the proton via inclusive Phi-meson production in neutral current deep inelastic scattering at HERA
ZEUS Collaboration
Inclusive phi-meson production in neutral current deep inelastic e+p scattering has been measured with the ZEUS detector at HERA using an integrated luminosity of 45 pb^{-1}. The p…
Measurement of subjet multiplicities in neutral current deep inelastic scattering at HERA and determination of
ZEUS Collaboration
The subjet multiplicity has been measured in neutral current e+p interactions at Q**2 > 125 GeV**2 with the ZEUS detector at HERA using an integrated luminosity of 38.6 pb-1. Jets…
Simultaneous Measurement of the B0 Meson Lifetime and Mixing Frequency with B0 --> D*- l+ nu Decays
the BABAR Collaboration, B. Aubert
We measure the B0 lifetime τ_{B0} and the B0-B0bar oscillation frequency Δm_d with a sample of approximately 14,000 exclusively reconstructed B0 --> D*- l+ nu signal events, select…
Measurement of the B0 meson lifetime with partial reconstruction of B0 --> D*- pi+ and B0 --> D*- rho+ decays
The BABAR Collaboration, B. Aubert
The neutral meson lifetime is measured with the data collected by the BaBar detector at the PEP-II storage ring during the years 1999 and 2000, with a total integrated luminosi…
A critique of non-extensive q-entropy for thermal statistics
Michael Nauenberg
During the past dozen years there have been numerous articles on a relation between entropy and probability which is non-additive and has a parameter that depends on the nature…
Distribution functions for largest eigenvalues and their applications
Craig A. Tracy, Harold Widom
It is now believed that the limiting distribution function of the largest eigenvalue in the three classic random matrix models GOE, GUE and GSE describe new universal limit laws fo…
The Spatial, Ionization, and Kinematic Conditions of the z=1.39 Damped Ly-alpha Absorber in Q0957+561 A,B
Chris Churchill, Rick Mellon, Jane Charlton +1
We examined the sizes of the absorption clouds in a z=1.3911 damped Ly-alpha absorber (DLA) in the double image lensed quasar Q0957+561 A,B (separation 135 pc at the absorber redsh…
Spectroscopy of Globular Clusters in the Fornax dwarf galaxy
Jay Strader, Jean P. Brodie, Duncan A. Forbes +2
We present low resolution, integrated Keck spectra of the five globular clusters (GCs) of the Fornax dwarf spheroidal galaxy. We find a tentative age spread among the clusters, wit…
Turbulence in Accretion Disks. Vorticity Generation and Angular Momentum Transport via the Global Baroclinic Instability
Hubert Klahr, Peter Bodenheimer
In this paper we present the global baroclinic instability as a source for vigorous turbulence leading to angular momentum transport in Keplerian accretion disks. We show by analyt…
On the Origin of Nitrogen in Damped Ly-alpha Systems
R. B. C. Henry, Jason X. Prochaska
Recent measurements of nitrogen and alpha elements in over 20 damped Ly-alpha systems (DLA) are compared with similar measurements for numerous emission line objects and stars. It…
Evidence for An Intermediate-Age, Metal-rich Population of Globular Clusters in NGC 4365
S. S. Larsen, J. P. Brodie, M. A. Beasley +4
We present spectroscopy for globular clusters (GCs) in the elliptical galaxy NGC 4365, obtained with the LRIS spectrograph on the Keck I telescope. Previous studies have shown that…
Advanced Camera for Surveys Observations of Young Star Clusters in the Interacting Galaxy UGC 10214
Hien D. Tran, M. Sirianni, H. C. Ford +31
We present the first Advanced Camera for Surveys (ACS) observations of young star clusters in the colliding/merging galaxy UGC 10214. The observations were made as part of the Earl…
A Population of Intergalactic Supernovae in Galaxy Clusters
Avishay Gal-Yam, Dan Maoz, Puragra Guhathakurta +1
We have discovered seven type Ia cluster supernovae (SNe) in the course of the Wise Observatory Optical Transients Search in the fields of galaxy clusters with redshifts between z=…
Symplectic homology and periodic orbits near symplectic submanifolds
Kai Cieliebak, Viktor L. Ginzburg, Ely Kerman
We show that a small neighborhood of a closed symplectic submanifold in a geometrically bounded aspherical symplectic manifold has non-vanishing symplectic homology. As a consequen…
Optical Diffuse Light in Nearby Compact Groups
C. Mendes de Oliveira, C. Da Rocha, C. R. Rabaça +2
Analyses of B and R band observations of four compact groups reveal the presence of a considerable amount of diffuse, intergalactic light in two of them (HCG 79 and HCG 95). The di…
Damped Lyman alpha systems and galaxy formation models - II. High ions and Lyman limit systems
Ariyeh H. Maller, Jason X. Prochaska, Rachel S. Somerville +1
We investigate a model for the high-ionization state gas associated with observed damped Lyman-alpha systems, based on a semi-analytic model of galaxy formation set within the para…
Keck Spectroscopy of Globular Clusters in the Elliptical Galaxy NGC 3610
Jay Strader, Jean P. Brodie, Francois Schweizer +2
We present moderate-resolution Keck spectra of nine candidate globular clusters in the possible merger-remnant elliptical galaxy NGC 3610. Eight of the objects appear to be bona fi…
Gamma-Ray Bursts and Jet-Powered Supernovae
S. E. Woosley, W. Zhang, A. Heger
The last five years have seen growing challenges to the traditional paradigm of a core collapse supernova powered by the neutrino emission of a young proto-neutron star. Chief amon…
Massive Star Evolution Through the Ages
A. Heger, S. E. Woosley, C. L. Fryer +1
We review the current basic picture of the evolution of massive stars and how their evolution and structure changes as a function of initial mass. We give an overview of the fate o…
Spectroscopy of a Globular Cluster in the Local Group dIrr NGC 6822
Jay Strader, Jean P. Brodie, John P. Huchra
We present low-resolution Keck spectroscopy for the globular cluster H VIII in the Local Group dIrr galaxy NGC 6822. We find the metallicity of the cluster to be [Fe/H]= -1.58 +/-…