Showing 2005Show all

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gr-qc2005★ 55 cited

Coupling of Radial and Axial non-Radial Oscillations of Compact Stars: Gravitational Waves from first-order Differential Rotation

A. Passamonti, M. Bruni, L. Gualtieri +2

We investigate the non-linear coupling between radial and non-radial oscillations of static spherically symmetric neutron stars as a possible mechanism for the generation of gravit…

cond-mat.mes-hall2005★ 29 cited

A Tunable Anomalous Hall Effect in a Non-Ferromagnetic System

J. Cumings, L. S. Moore, H. T. Chou +4

We measure the low-field Hall resistivity of a magnetically-doped two-dimensional electron gas as a function of temperature and electrically-gated carrier density. Comparing these…

math.QA2005★ 5 cited

Number theoretic properties of Wronskians of Andrews-Gordon series

Antun Milas, Eric Mortenson, Ken Ono

For positive integers , we consider the arithmetic properties of quotients of Wronskians in certain normalizations of the Andrews-Gordon -series $$ \prod_{1\leq n…

astro-ph2005★ 169 cited

The Giant X-ray Flare of GRB 050502B: Evidence for Late-Time Internal Engine Activity

A. D. Falcone, D. N. Burrows, D. Lazzati +28

Until recently, X-ray flares during the afterglow of gamma ray bursts (GRBs) were a rarely detected phenomenon, thus their nature is unclear. During the afterglow of GRB 050502B, t…

physics.bio-ph2005★ 280 cited

Swimming Efficiency of Bacterium Escherichia Coli

Suddhashil Chattopadhyay, Radu Moldovan, Chuck Yeung +1

We use in vivo measurements of swimming bacteria in an optical trap to determine fundamental properties of bacterial propulsion. In particular, we determine the propulsion matrix,…

math.CA2005★ 1 cited

Nearly Time Optimal Stabilizing Patchy Feedbacks

Fabio Ancona, Alberto Bressan

We consider the time optimal stabilization problem for a nonlinear control system . Let be the minimum time needed to steer the system from the state $y\in\R^…

astro-ph2005★ 12 cited

Detection of orbital and superhump periods in Nova V2574 Ophiuchi (2004)

Tae W. Kang, Alon Retter, Alex Liu +1

We present the results of 37 nights of CCD unfiltered photometry of nova V2574 Oph (2004) from 2004 and 2005. We find two periods of 0.14164 d (~3.40 h) and 0.14773 d (~3.55 h) in…

astro-ph2005★ 116 cited

Radiatively Inefficient Accretion Flow in the Nucleus of NGC 1097

Rodrigo S. Nemmen, Thaisa Storchi-Bergmann, Feng Yuan +3

We present a model for the accretion flow around the supermassive black hole in the LINER nucleus of NGC 1097 which fits the optical to X-ray spectral energy distribution (SED). Th…

quant-ph2005

More on the Asymmetric Infinite Square Well: Energy Eigenstates with Zero Curvature

L. P. Gilbert, M. Belloni, M. A. Doncheski +1

We extend the standard treatment of the asymmetric infinite square well to include solutions that have zero curvature over part of the well. This type of solution, both within the…

gr-qc2005★ 76 cited

Accurate Evolution of Orbiting Binary Black Holes

Peter Diener, Frank Herrmann, Denis Pollney +5

We present a detailed analysis of binary black hole evolutions in the last orbit, and demonstrate consistent and convergent results for the trajectories of the individual bodies. T…

astro-ph2005★ 11 cited

The Origins of the Substellar Companion to GQ Lup

J. H. Debes, S. Sigurdsson

The recently discovered substellar companion to GQ Lup possibly represents a direct test of current planet formation theories. We examine the possible formation scenarios for the c…

astro-ph2005★ 129 cited

The Flare Activity of SgrA*; New Coordinated mm to X-Ray Observations

A. Eckart, F. K. Baganoff, R. Schoedel +17

We report new simultaneous near-infrared/sub-millimeter/X-ray observations of the SgrA* counterpart associated with the massive 3-4x10**6 solar mass black hole at the Galactic Cent…

astro-ph2005★ 4 cited

Swift and XMM observations of the dark GRB 050326

A. Moretti, A. De Luca, D. Malesani +30

We present Swift and XMM observations of GRB 050326, detected by Swift-BAT. The fluence was 7.7x10^-6 erg cm^-2 (20-150 keV), and its spectrum was hard, with a power law photon ind…

quant-ph2005★ 3 cited

Image method solutions for free-particle wave packets

R. W. Robinett

Using analogs of familiar image methods in electrostatics and optics, we show how to construct closed form wave packet solutions of the two-dimensional free-particle Schrodinger eq…

astro-ph2005★ 30 cited

GRB 050911: a black hole - neutron star merger or a naked GRB

K. L. Page, A. R. King, A. J. Levan +16

GRB 050911, discovered by the Swift Burst Alert Telescope, was not seen 4.6 hr later by the Swift X-ray Telescope, making it one of the very few X-ray non-detections of a Gamma-Ray…

astro-ph2005★ 35 cited

Spectroscopy of GRB 051111 at z=1.54948: Kinematics and Elemental Abundances of the GRB Environment and Host Galaxy

B. E. Penprase, E. Berger, D. B. Fox +8

We present a high-resolution, high signal-to-noise optical spectrum of the afterglow of GRB 051111 obtained with the HIRES spectrograph on the Keck I 10-m telescope. The spectrum e…

math.CA2005★ 2 cited

The complete integrability of a Lie-Poisson system proposed by Bloch and Iserles

Carlos Tomei, Luen-Chau Li

We establish the Liouville integrability of the differential equation recently considered by Bloch and Iserles. Here, is a real, fixed, skew-symmetric…

astro-ph2005★ 35 cited

Spectral Variability of Quasars in the Sloan Digital Sky Survey. II: The C IV Line

B. C. Wilhite, D. E. Vanden Berk, R. J. Brunner +1

We examine the variability of the high-ionizaton C IV line in a sample of 105 quasars observed at multiple epochs by the Sloan Digital Sky Survey. We find a strong correlation betw…

astro-ph2005★ 3 cited

Fine-Structure FeII and SiII Absorption in the Spectrum of GRB 051111: Implications for the Burst Environment

E. Berger, B. E. Penprase, D. B. Fox +4

We present an analysis of fine-structure transitions of FeII and SiII detected in a high-resolution optical spectrum of the afterglow of GRB 051111 (z=1.54948). The fine-structure…

astro-ph2005★ 43 cited

SDSS J0806+2006 and SDSS J1353+1138: Two New Gravitationally Lensed Quasars from the Sloan Digital Sky Survey

Naohisa Inada, Masamune Oguri, Robert H. Becker +18

We report the discoveries of two, two-image gravitationally lensed quasars selected from the Sloan Digital Sky Survey: SDSS J0806+2006 at z_s=1.540 and SDSS J1353+1138 at z_s=1.629…

physics.optics2005★ 14 cited

Positive-, negative-, and orthogonal-phase-velocity propagation of electromagnetic plane waves in a simply moving medium

Tom G. Mackay, Akhlesh Lakhtakia, Sandi Setiawan

Planewave propagation in a simply moving, dielectric-magnetic medium that is isotropic in the co-moving reference frame, is classified into three different categories: positive-, n…

astro-ph2005★ 24 cited

The Nature of Weak MgII Absorbing Structures

Nikola Milutinovic, Jane R. Rigby, Joseph R. Masiero +3

We consider geometries and possible physical models for weak low ionization absorbers based on the relative incidence of low and high ionization absorption systems. We found a tota…

astro-ph2005★ 161 cited

Very Small-Scale Clustering and Merger Rate of Luminous Red Galaxies

Morad Masjedi, David W. Hogg, Richard J. Cool +8

We present the small-scale (0.01<r<8 h^{-1} Mpc) projected correlation function w_p(r_p) and real space correlation function xi(r) of 24520 luminous early-type galaxies from the Sl…

math.NT2005

A New Tower of Rankin-Selberg Integrals

David Ginzburg, Joseph Hundley

This document describes the authors' current research project: the evaluation of a tower of Rankin-Selberg integrals on the group E_6. We recall the notion of a tower, and two know…