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139 papers · 1 filter
Compensation driven superconductor-insulator transition
Markus Mueller, Boris I. Shklovskii
The superconductor-insulator transition in the presence of strong compensation of dopants was recently realized in La doped YBCO. The compensation of acceptors by donors makes it p…
New Limits on the Ultra-high Energy Cosmic Neutrino Flux from the ANITA Experiment
ANITA collaboration, P. Gorham, P. Allison +40
We report initial results of the first flight of the Antarctic Impulsive Transient Antenna (ANITA-1) 2006-2007 Long Duration Balloon flight, which searched for evidence of a diffus…
Detecting Magnetic Fields in Large-Scale Structure with Radio Polarization
Shea Brown, Lawrence Rudnick, Damon Farnsworth
We present our attempts to detect magnetic fields in filamentary large-scale structure (LSS) by observing polarized synchrotron emission emitted by structure formation shocks. Litt…
Triggered Star Formation and the Creation of the Supergiant HI Shell in IC 2574
Daniel R. Weisz, Evan D. Skillman, John M. Cannon +4
Based on deep imaging from the Advanced Camera for Surveys aboard the Hubble Space Telescope, we present new evidence that stellar feedback created a ~ 1 kpc supergiant HI shell (S…
The Antarctic Impulsive Transient Antenna Ultra-high Energy Neutrino Detector Design, Performance, and Sensitivity for 2006-2007 Balloon Flight
ANITA collaboration, P. Gorham, P. Allison +40
We present a detailed report on the experimental details of the Antarctic Impulsive Transient Antenna (ANITA) long duration balloon payload, including the design philosophy and rea…
Instability of the ACW model, and problems with massive vectors during inflation
Burak Himmetoglu, Carlo R. Contaldi, Marco Peloso
We prove that the anisotropic inflationary background of the Ackerman-Carroll-Wise model, characterized by a fixed-norm vector field, is unstable. We found the instability by expli…