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19912026
Showing 2004 · astro-phShow all

62 papers · 2 filters

astro-ph2004★ 114 cited

Accelerator Measurements of the Askaryan effect in Rock Salt: A Roadmap Toward Teraton Underground Neutrino Detectors

P. W. Gorham, D. Saltzberg, R. C. Field +4

We report on further SLAC measurements of the Askaryan effect: coherent radio emission from charge asymmetry in electromagnetic cascades. We used synthetic rock salt as the dielect…

astro-ph2004★ 73 cited

A Green Bank Telescope Search for Water Masers in Nearby Active Galactic Nuclei

J. A. Braatz, C. Henkel, L. J. Greenhill +2

Using the Green Bank Telescope, we have conducted a survey for 1.3 cm water maser emission toward the nuclei of nearby active galaxies, the most sensitive large survey for H2O mase…

astro-ph2004★ 8 cited

CMB Fluctuation Amplitude from Dark Energy Partitions

James V. Lindesay, H. Pierre Noyes, E. D. Jones

It is assumed that the dark energy observed today is frozen as a result of a phase transition involving the source of that energy. Postulating that the dark energy de-coherence whi…

astro-ph2004★ 59 cited

Radio Flares and the Magnetic Field Structure in GRB Outflows

Jonathan Granot, Gregory B. Taylor

The magnetic field structure in GRB outflows is of great interest as it can provide valuable clues that can help pin down the mechanism responsible for the acceleration and collima…

astro-ph2004★ 93 cited

An Off-Axis Model for GRB 031203

Enrico Ramirez-Ruiz, Jonathan Granot, Chryssa Kouveliotou +3

The low luminosity radio emission of the unusually faint GRB 031203 has been argued to support the idea of a class of intrinsically sub-energetic gamma-ray bursts (GRBs), currently…

astro-ph2004★ 99 cited

The Number of Supernovae from Primordial Stars in the Universe

John H. Wise, Tom Abel

Recent simulations of the formation of the first luminous objects in the universe predict isolated very massive stars to form in dark matter halos with virial temperatures large en…