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82 papers · 1 filter
Cosmic Rays and High-Energy Neutrinos from Gamma-Ray Bursts
C. D. Dermer, A. Atoyan
Several lines of evidence point to a relationship between gamma-ray bursts (GRBs) and the high mass stars that explode as supernovae. Arguments that GRB sources accelerate cosmic r…
Blazar Flaring Rates Measured with GLAST
C. D. Dermer, B. L. Dingus
We derive the minimum observing time scales to detect a blazar at a given flux level with the LAT on GLAST in the scanning and pointing modes. Based upon Phase 1 observations with…
On Collisionless Electron-Ion Temperature Equilibration in the Fast Solar Wind
J. Martin Laming
We explore a mechanism, entirely new to the fast solar wind, of electron heating by lower hybrid waves to explain the shift to higher charge states observed in various elements in…
Second-order transverse magnetic anisotropy induced by disorders in the single-molecule magnet Mn12
Kyungwha Park, Tunna Baruah, Noam Bernstein +1
For the single-molecule magnet Mn12, Cornia et al. recently proposed that solvent molecules may cause the quantum tunneling that requires a lower symmetry than S4. However, magneti…
Detection of Sagittarius A* at 330 MHz with the Very Large Array
Michael E. Nord, T. Joseph W. Lazio, Namir E. Kassim +2
We report the detection of Sagittarius A*, the radio source associated with our Galaxy's central massive black hole, at 330 MHz with the Very Large Array. Implications for the spec…
High-Energy Cosmic Rays from Galactic and Extragalactic Gamma-Ray Bursts
S. D. Wick, C. D. Dermer, A. Atoyan
A model for high-energy (>10^14 eV) cosmic rays (HECRs) from galactic and extragalactic gamma-ray bursts (GRBs) is summarized. Relativistic outflows in GRBs are assumed to inject p…