Showing 2009Show all

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astro-ph.GA2009★ 60 cited

Deep Chandra Observations of the Crab-like Pulsar Wind Nebula G54.1+0.3 and Spitzer Spectroscopy of the Associated Infrared Shell

Tea Temim, Patrick Slane, Stephen P. Reynolds +2

G54.1+0.3 is a young pulsar wind nebula (PWN), closely resembling the Crab, for which no thermal shell emission has been detected in X-rays. Recent Spitzer observations revealed an…

cond-mat.mes-hall2009★ 227 cited

First Principles Analysis of Electron-Phonon Interaction in Graphene

K. M. Borysenko, J. T. Mullen, E. A. Barry +5

The electron-phonon interaction in monolayer graphene is investigated by using density functional perturbation theory. The results indicate that the electron-phonon interaction str…

math.CO2009★ 3 cited

Noncrossing partitions, clusters and the Coxeter plane

Nathan Reading

When W is a finite Coxeter group of classical type (A, B, or D), noncrossing partitions associated to W and compatibility of almost positive roots in the associated root system are…

cond-mat.quant-gas2009★ 24 cited

Scaling Flows and Dissipation in the Dilute Fermi Gas at Unitarity

Thomas Schaefer, Clifford Chafin

We describe recent attempts to extract the shear viscosity of the dilute Fermi gas at unitarity from experiments involving scaling flows. A scaling flow is a solution of the hydrod…

nucl-th2009★ 103 cited

Lattice effective field theory calculations for A = 3,4,6,12 nuclei

Evgeny Epelbaum, Hermann Krebs, Dean Lee +1

We present lattice results for the ground state energies of tritium, helium-3, helium-4, lithium-6, and carbon-12 nuclei. Our analysis includes isospin-breaking, Coulomb effects, a…

cond-mat.str-el2009★ 1 cited

Surface Reconstruction of Hexagonal Y-doped HoMnO3 and LuMnO3 studied using low-energy electron diffraction

R. Vasic, J. T. Sadowski, Y. J. Choi +5

We have investigated the (0001) surfaces of several hexagonal manganite perovskites by low-energy electron diffraction (LEED) in order to determine if the surface periodicity is di…

astro-ph.HE2009★ 72 cited

Spatial structure of X-ray filaments in SN 1006

G. Morlino, E. Amato, P. Blasi +1

The theory of Non-Linear Diffusive Shock Acceleration (NLDSA) predicts the formation of a precursor upstream of the shock, where accelerated particles diffuse and induce magnetic f…

cond-mat.soft2009★ 97 cited

Shear-driven size segregation of granular materials: modeling and experiment

Lindsay B. H. May, Laura A. Golick, Katherine C. Phillips +2

Granular materials segregate by size under shear, and the ability to quantitatively predict the time required to achieve complete segregation is a key test of our understanding of…

math.ST2009★ 33 cited

Local quasi-likelihood with a parametric guide

Jianqing Fan, Yichao Wu, Yang Feng

Generalized linear models and the quasi-likelihood method extend the ordinary regression models to accommodate more general conditional distributions of the response. Nonparametric…

nucl-ex2009★ 8 cited

Relaxation of Spin Polarized He in Mixtures of He and He at 330 mK

Q. Ye, H. Gao, W. Zheng +6

We report the measurements of depolarization probabilities of polarized He in a rectangular acrylic cell with a deuterated tetraphenyl butadiene-doped deuterated polystyrene co…

math.ST2009★ 222 cited

Quantile regression in partially linear varying coefficient models

Huixia Judy Wang, Zhongyi Zhu, Jianhui Zhou

Semiparametric models are often considered for analyzing longitudinal data for a good balance between flexibility and parsimony. In this paper, we study a class of marginal partial…

math.CO2009★ 5 cited

Combinatorial interpretations of binomial coefficient analogues related to Lucas sequences

Bruce Sagan, Carla Savage

Let s and t be variables. Define polynomials {n} in s, t by {0}=0, {1}=1, and {n}=s{n-1}+t{n-2} for n >= 2. If s, t are integers then the corresponding sequence of integers is call…

physics.chem-ph2009★ 50 cited

Conformational free energies of methyl--L-iduronic and methyl--D-glucuronic acids in water

Volodymyr Babin, Celeste Sagui

We present a simulation protocol that allows for efficient sampling of the degrees of freedom of a solute in explicit solvent. The protocol involves using a non-equilibrium umbrell…

cond-mat.soft2009★ 57 cited

Fluorescent visualization of a spreading surfactant

David W. Fallest, Adele M. Lichtenberger, Christopher J. Fox +1

The spreading of surfactants on thin films is an industrially and medically important phenomenon, but the dynamics are highly nonlinear and visualization of the surfactant dynamics…

astro-ph.HE2009★ 51 cited

Short-duration gamma-ray bursts from off-axis collapsars

Davide Lazzati, Brian J. Morsony, Mitchell C. Begelman

We present 2D high-resolution hydrodynamic simulations of the relativistic outflows of long-duration gamma-ray burst progenitors. We analyze the properties of the outflows at wide…

math.QA2009★ 11 cited

Zero Action on Perfect Crystals for U_q(G_2^{(1)})

Kailash C. Misra, Mahathir Mohamad, Masato Okado

The actions of 0-Kashiwara operators on the -crystal in [Yamane S., J. Algebra 210 (1998), 440-486] are made explicit by using a similarity technique from th…

physics.data-an2009★ 2.2k cited

Community Structure in Time-Dependent, Multiscale, and Multiplex Networks

Peter J. Mucha, Thomas Richardson, Kevin Macon +2

Network science is an interdisciplinary endeavor, with methods and applications drawn from across the natural, social, and information sciences. A prominent problem in network scie…

nucl-ex2009★ 13 cited

TThe {\sc Majorana} Project

The MAJORANA collaboration

The {\sc Majorana} Project, a neutrinoless double-beta decay experiment is described with an emphasis on the choice of Ge-detector configuration.

cond-mat.soft2009★ 45 cited

Phase diagram and structural properties of a simple model for one-patch particles

Achille Giacometti, Fred Lado, Julio Largo +2

We study the thermodynamic and structural properties of a simple, one-patch fluid model using the reference hypernetted-chain (RHNC) integral equation and specialized Monte Carlo s…

astro-ph.HE2009★ 35 cited

Detecting neutrinos from black hole neutron stars mergers

O. L. Caballero, G. C. McLaughlin, R. Surman

While it is well known that neutrinos are emitted from standard core collapse protoneutron star supernovae, less attention has been focused on neutrinos from accretion disks. These…

nucl-th2009★ 23 cited

Shear viscosity from kaon condensation in color-flavor-locked quark matter

Mark G. Alford, Matt Braby, Simin Mahmoodifar

We calculate the kaonic contribution to the shear viscosity of quark matter in the kaon-condensed color-flavor locked phase (CFL-K0). This contribution comes from a light pseudo-Go…

gr-qc2009★ 3 cited

Binding in charged spherically symmetric objects

Matthew Corne, Arkady Kheyfets, Jennifer Piasio +1

We consider the subject of self--binding in static, spherically symmetric objects consisting of a charged fluid. We have shown previously that in the case of a perfect fluid, only…

math.QA2009

Two-parameter quantum vertex representations via finite groups and the McKay correspondence

Naihuan Jing, Honglian Zhang

We introduce two-parameter quantum toroidal algebras of simply laced types and provide their group theoretic realization using finite subgroups of via McKay corre…

hep-ph2009★ 42 cited

Non-leptonic two-body decays of the Bc meson in light-front quark model and QCD factorization approach

Ho-Meoyng Choi, Chueng-Ryong Ji

We study exclusive non-leptonic two-body decays with (pseudoscalar or vector meson) being factored out in QCD factorization approach. The non-lep…