911 citations
- United States Naval Research LaboratoryUS36 papers
- Goddard Space Flight CenterUS35 papers
- University of Maryland, College ParkUS23 papers
- University of California, Santa CruzUS15 papers
- CEA Paris-SaclayFR13 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR13 papers
- University of WashingtonUS13 papers
- Max Planck Institute for Extraterrestrial PhysicsDE11 papers
- Stanford UniversityUS11 papers
- University of PerugiaIT11 papers
- The Ohio State UniversityUS10 papers
- Istituto di Astrofisica Spaziale e Fisica Cosmica di MilanoIT9 papers
21 papers · 1 filter
Discovery of TeV Gamma-Ray Emission from the Cygnus Region of the Galaxy
A. A. Abdo, B. Allen, D. Berley +36
The diffuse gamma radiation arising from the interaction of cosmic ray particles with matter and radiation in the Galaxy is one of the few probes available to study the origin of t…
Long-Term X-Ray spectral variability of the radio-loud NLS1 galaxy PKS 0558-504
M. Gliozzi, I. E. Papadakis, W. Brinkmann
We present X-ray observations of the Narrow-Line Seyfert 1 galaxy PKS 0558-504 obtained with RXTE during a 1-year monitoring campaign. This source, which is one of the very few rad…
Effects of Downscattering on the Continuum and Line Spectra in Powerful Wind Environment. Monte Carlo Simulations, Analytical Results and Data Analysis
Philippe Laurent, Lev Titarchuk
In Paper by Titarchuk & Shrader the general formulation and results for photon reprocessing (downscattering) that included recoil and Comptonization effects due to divergence of th…
Characterizing multiparticle entanglement in symmetric N-qubit states via negativity of covariance matrices
A. R. Usha Devi, R. Prabhu, A. K. Rajagopal
We show that higher order inter-group covariances involving even number of qubits are necessarily positive semidefinite for N qubit separable states, which are completely symmetric…
Thermal and Bulk Comptonization in Accretion-Powered X-Ray Pulsars
Peter A. Becker, Michael T. Wolff
We develop a new theoretical model for the spectral formation process in accretion-powered X-ray pulsars based on a detailed treatment of the bulk and thermal Comptonization occurr…
Fractional charge revealed in computer simulations of resonant tunneling in the fractional quantum Hall regime
E. V. Tsiper
The concept of fractional charge is central to the theory of the fractional quantum Hall effect (FQHE). Here I use exact diagonalization as well as configuration space renormalizat…