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19922026
most citedAstropy: A Community Python Package for Astronomy

14.6k citations

Showing 2011Show all

165 papers · 1 filter

math.SG2011★ 31 cited

On the equivalence of Legendrian and transverse invariants in knot Floer homology

John A. Baldwin, David Shea Vela-Vick, Vera Vertesi

Using the grid diagram formulation of knot Floer homology, Ozsvath, Szabo and Thurston defined an invariant of transverse knots in the tight contact 3-sphere. Shortly afterwards, L…

math.NA2011★ 1 cited

A Diffuse Interface Model for Electrowetting with Moving Contact Lines

Ricardo H. Nochetto, Abner J. Salgado, Shawn W. Walker

We introduce a diffuse interface model for the phenomenon of electrowetting on dielectric and present an analysis of the arising system of equations. Moreover, we study discretizat…

astro-ph.SR2011★ 21 cited

Solid-phase C_60 in the peculiar binary XX Oph?

A. Evans, J. Th. van Loon, C. E. Woodward +8

We present infrared spectra of the binary XX Oph obtained with the Infrared Spectrograph on the Spitzer Space Telescope. The data show some evidence for the presence of solid C_60…

math.GT2011★ 4 cited

A reduced set of moves on one-vertex ribbon graphs coming from links

Susan Abernathy, Cody Armond, Moshe Cohen +5

Every link in R^3 can be represented by a one-vertex ribbon graph. We prove a Markov type theorem on this subset of link diagrams.

astro-ph.IM2011★ 1 cited

Review of the Laguerre-Gauss mode technology research program at Birmingham

Paul Fulda, Charlotte Bond, Daniel Brown +7

Gravitational wave detectors from the advanced generation onwards are expected to be limited in sensitivity by thermal noise of the optics, making the reduction of this noise a key…

astro-ph.HE2011★ 43 cited

A Significant Problem With Using the Amati Relation for Cosmological Purposes

Andrew C. Collazzi, Bradley E. Schaefer, Adam Goldstein +1

We consider the distribution of many samples of Gamma-Ray Bursts (GRBs) when plotted in a diagram with their bolometric fluence (Sbolo) versus the observed photon energy of peak sp…

astro-ph.SR2011

Low resolution spectroscopy of hot post-AGB candidates II. LS, LSS, LSE stars and additional IRAS sources

M. Parthasarathy, J. S. Drilling, J. Vijapurkar +1

Hot (OB) post-AGB stars are immediate progenitors of planetary nebulae (PNe). Very few hot post-AGB stars are known. Detecting new hot post-AGB candidates and follow-up multiwavele…

gr-qc2011★ 98 cited

Curvature invariants, geodesics and the strength of singularities in Bianchi-I loop quantum cosmology

Parampreet Singh

We investigate the effects of the underlying quantum geometry in loop quantum cosmology on spacetime curvature invariants and the extendibility of geodesics in the Bianchi-I model…

gr-qc2011★ 29 cited

Generic effective source for scalar self-force calculations

Barry Wardell, Ian Vega, Jonathan Thornburg +1

A leading approach to the modelling of extreme mass ratio inspirals involves the treatment of the smaller mass as a point particle and the computation of a regularized self-force a…

cond-mat.str-el2011★ 34 cited

Kondo effect in the presence of spin-orbit coupling

L. Isaev, D. F. Agterberg, I. Vekhter

We study the T=0 Kondo physics of a spin-1/2 impurity in a non-centrosymmetric metal with spin-orbit interaction. Within a simple variational approach we compute ground state prope…

gr-qc2011★ 59 cited

Upper limits on a stochastic gravitational-wave background using LIGO and Virgo interferometers at 600-1000 Hz

J. Abadie, B. P. Abbott, R. Abbott +782

A stochastic background of gravitational waves is expected to arise from a superposition of many incoherent sources of gravitational waves, of either cosmological or astrophysical…

gr-qc2011★ 63 cited

Self-consistent orbital evolution of a particle around a Schwarzschild black hole

Peter Diener, Ian Vega, Barry Wardell +1

The motion of a charged particle is influenced by the self-force arising from the particle's interaction with its own field. In a curved spacetime, this self-force depends on the e…

quant-ph2011

Quantum random walks with multiphoton interference and high order correlation functions

Bryan T Gard, Robert M Cross, Petr M Anisimov +2

We show a simulation of quantum random walks with multiple photons using a staggered array of 50/50 beam splitters with a bank of detectors at any desired level. We discuss the mul…

gr-qc2011★ 46 cited

Isolated Horizons and Black Hole Entropy in Loop Quantum Gravity

Jacobo Diaz-Polo, Daniele Pranzetti

We review the black hole entropy calculation in the framework of Loop Quantum Gravity based on the quasi-local definition of a black hole encoded in the isolated horizon formalism.…

cond-mat.mtrl-sci2011★ 34 cited

Single crystal growth by self-flux method of the mixed valence gold halides Cs[AuX][AuX] (X=Br,I)

Scott C. Riggs, M. C. Shapiro, F. Corredor +4

High quality single crystals of CsAuX (X=Br,I) were grown using a ternary self-flux method. Structural refinements based on single crystal X-ray diffraction measurement…

astro-ph.IM2011★ 211 cited

Trigger and Aperture of the Surface Detector Array of the Pierre Auger Observatory

J. Abraham, P. Abreu, M. Aglietta +469

The surface detector array of the Pierre Auger Observatory consists of 1600 water-Cherenkov detectors, for the study of extensive air showers (EAS) generated by ultra-high-energy c…

astro-ph.CO2011★ 31 cited

Late-time Light Curves of Type II Supernovae: Physical Properties of SNe and Their Environment

Masaaki Otsuka, Margaret Meixner, Nino Panagia +9

We present BVRIJHK band photometry of 6 core-collapse supernovae, SNe 1999bw, 2002hh, 2003gd, 2004et, 2005cs, and 2006bc measured at late epochs (>2 yrs) based on Hubble Space Tele…

nucl-ex2011★ 8 cited

Unbound states of 32Cl and the 31S(p,γ)32Cl reaction rate

M. Matoš, J. C. Blackmon, L. E. Linhardt +6

The 31S(p,γ)32Cl reaction is expected to provide the dominant break-out path from the SiP cycle in novae and is important for understanding enrichments of sulfur observed in some n…

math.AG2011★ 72 cited

Locally acyclic cluster algebras

Greg Muller

This paper studies cluster algebras locally, by identifying a special class of localizations which are themselves cluster algebras. A `locally acyclic cluster algebra' is a cluster…

math-ph2011

Wave Scattering and Guided Modes in Periodic Pillars

Hairui Tu

We investigate the scattering of scalar harmonic source fields by a periodic pillar, that is, a spatial structure that is periodic in one dimension and of finite extent in the othe…

gr-qc2011★ 587 cited

The Einstein Toolkit: A Community Computational Infrastructure for Relativistic Astrophysics

Frank Löffler, Joshua Faber, Eloisa Bentivegna +10

We describe the Einstein Toolkit, a community-driven, freely accessible computational infrastructure intended for use in numerical relativity, relativistic astrophysics, and other…

physics.ins-det2011★ 115 cited

Measurements of the T2K neutrino beam properties using the INGRID on-axis near detector

K. Abe, N. Abgrall, Y. Ajima +428

Precise measurement of neutrino beam direction and intensity was achieved based on a new concept with modularized neutrino detectors. INGRID (Interactive Neutrino GRID) is an on-ax…

math.RT2011★ 3 cited

Dimension formulas for some modular representations of the symplectic group in the natural characteristic

Patrick M. Gilmer, Gregor Masbaum

We compare the dimensions of the irreducible Sp(2g,K)-modules over a field K of characteristic p constructed by Gow with the dimensions of the irreducible Sp(2g,F_p)-modules that a…

astro-ph.HE2011★ 40 cited

Search for signatures of magnetically-induced alignment in the arrival directions measured by the Pierre Auger Observatory

The Pierre Auger Collaboration, P. Abreu, M. Aglietta +496

We present the results of an analysis of data recorded at the Pierre Auger Observatory in which we search for groups of directionally-aligned events (or `multiplets') which exhibit…