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11 papers · 2 filters
Jet or Shock Breakout? The Low-Luminosity GRB 060218
C. M. Irwin, R. A. Chevalier
We consider a model for the low-luminosity gamma-ray burst GRB 060218 that plausibly accounts for multiwavelength observations to day 20. The model components are: (1) a long-lived…
A Deep Search for Prompt Radio Emission from Thermonuclear Supernovae with the Very Large Array
Laura Chomiuk, Alicia M. Soderberg, Roger A. Chevalier +10
Searches for circumstellar material around Type Ia supernovae (SNe Ia) are one of the most powerful tests of the nature of SN Ia progenitors, and radio observations provide a parti…
Disks and Jets - Gravity, Rotation and Magnetic Fields
John F. Hawley, Christian Fendt, Martin Hardcastle +2
Magnetic fields are fundamental to the dynamics of both accretion disks and the jets that they often drive. We review the basic physics of these phenomena, the past and current eff…
X-ray and radio emission from Type IIn supernova SN 2010jl
Poonam Chandra, Roger A. Chevalier, Nikolai Chugai +2
We present all X-ray and radio observations of the Type IIn supernova SN 2010jl. The X-ray observations cover a period up to day 1500 with Chandra, XMM-Newton, NuSTAR and Swift-XRT…
Parkes radio searches of Fermi gamma-ray sources and millisecond pulsar discoveries
F. Camilo, M. Kerr, P. S. Ray +13
In a search with the Parkes radio telescope of 56 unidentified Fermi-LAT gamma-ray sources, we have detected 11 millisecond pulsars (MSPs), 10 of them discoveries, of which five we…
Simultaneous Multi-band Radio & X-ray Observations of the Galactic Center Magnetar SGR 17452900
T. T. Pennucci, A. Possenti, P. Esposito +7
We report on multi-frequency, wideband radio observations of the Galactic Center magnetar (SGR 17452900) with the Green Bank Telescope for 100 days immediately following i…