Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Oak Ridge National LaboratoryUS200 papers
- Los Alamos National LaboratoryUS198 papers
- Duke UniversityUS187 papers
- Triangle Universities Nuclear LaboratoryUS171 papers
- University of Tennessee at KnoxvilleUS134 papers
- University of WashingtonUS134 papers
- University of North Carolina at Chapel HillUS130 papers
- Lawrence Berkeley National LaboratoryUS119 papers
- University of California, BerkeleyUS103 papers
- Centre National de la Recherche ScientifiqueFR98 papers
- Indiana University BloomingtonUS94 papers
- Massachusetts Institute of TechnologyUS93 papers
128 papers · 1 filter
Dots, clumps and filaments: the intermittent images of synchrotron emission in random magnetic fields of young supernova remnants
Andrei M. Bykov, Yury A. Uvarov, Donald C. Ellison
Non-thermal X-ray emission in some supernova remnants originates from synchrotron radiation of ultra-relativistic particles in turbulent magnetic fields. We address the effect of a…
High-Resolution X-ray Spectroscopy of SNR 1987A: Chandra LETG and HETG Observations in 2007
Svetozar A. Zhekov, Richard McCray, Daniel Dewey +4
We present an extended analysis of the deep Chandra LETG and HETG observations of the supernova remnant 1987A (SNR 1987A) carried out in 2007. The global fits to the grating spectr…
Turbulence Dissipation and Particle Injection in Non-Linear Diffusive Shock Acceleration with Magnetic Field Amplification
Andrey E. Vladimirov, Andrei M. Bykov, Donald C. Ellison
The highly amplified magnetic fields suggested by observations of some supernova remnant (SNR) shells are most likely an intrinsic part of efficient particle acceleration by shocks…
Ejecta, Dust, and Synchrotron Radiation in B0540-69.3: A More Crab-Like Remnant than the Crab
Brian J. Williams, Kazimierz J. Borkowski, Stephen P. Reynolds +10
We present near and mid-infrared observations of the pulsar-wind nebula (PWN) B0540-69.3 and its associated supernova remnant made with the {\it Spitzer Space Telescope}. We report…
The short GRB070707 afterglow and its very faint host galaxy
S. Piranomonte, P. D'Avanzo, S. Covino +18
We present the results from an ESO/VLT campaign aimed at studying the afterglow properties of the short/hard gamma ray burst GRB 070707. Observations were carried out at ten differ…
3-D Model of Broadband Emission from Supernova Remnants Undergoing Non-linear Diffusive Shock Acceleration
Shiu-Hang Lee, Tsuneyoshi Kamae, Donald C. Ellison
We present a 3-dimensional model of supernova remnants (SNRs) where the hydrodynamical evolution of the remnant is modeled consistently with nonlinear diffusive shock acceleration…
The Youngest Galactic Supernova Remnant: G1.9+0.3
S. P. Reynolds, K. J. Borkowski, D. A. Green +3
Our 50 ks Chandra observation of the small radio supernova remnant (SNR) G1.9+0.3 shows a complete shell structure with strong bilateral symmetry, about in diameter. The ra…
The radio expansion and brightening of the very young supernova remnant G1.9+0.3
D. A. Green, S. P. Reynolds, K. J. Borkowski +3
Recent radio observations of the small Galactic supernova remnant G1.9+0.3 made at 4.86 GHz with the VLA are presented, and compared with earlier observations at 1.49 GHz which hav…
r-Process Nucleosynthesis in Hot Accretion Disk Flows from Black Hole - Neutron Star Mergers
R. Surman, G. C. McLaughlin, M. Ruffert +2
We consider hot accretion disk outflows from black hole - neutron star mergers in the context of the nucleosynthesis they produce. We begin with a three dimensional numerical model…
The Infrared Detection of the Pulsar Wind Nebula in the Galactic Supernova Remnant 3C 58
P. Slane, D. J. Helfand, S. P. Reynolds +3
We present infrared observations of 3C 58 with the Spitzer Space Telescope and the Canada-France-Hawaii Telescope. Using the IRAC camera, we have imaged the entire source resulting…
Magnetic Field Amplification and Rapid Time Variations in SNR RX J1713.7-3946
Donald C. Ellison, Andrey Vladimirov
Evidence is accumulating suggesting that collisionless shocks in supernova remnants (SNRs) can amplify the interstellar magnetic field to hundreds of microgauss or even milli-gauss…
X-Ray Emitting Ejecta of Supernova Remnant N132D
Kazimierz J. Borkowski, Sean P. Hendrick, Stephen P. Reynolds
The brightest supernova remnant in the Magellanic Clouds, N132D, belongs to the rare class of oxygen-rich remnants, about a dozen objects that show optical emission from pure heavy…
Ascertaining the Core Collapse Supernova Mechanism: An Emerging Picture?
A. Mezzacappa, S. W. Bruenn, J. M. Blondin +2
Here we present the results from two sets of simulations, in two and three spatial dimensions. In two dimensions, the simulations include multifrequency flux-limited diffusion neut…
Modeling core collapse supernovae in 2 and 3 dimensions with spectral neutrino transport
S. W. Bruenn, C. J. Dirk, A. Mezzacappa +4
The overwhelming evidence that the core collapse supernova mechanism is inherently multidimensional, the complexity of the physical processes involved, and the increasing evidence…
A Deep Chandra Observation of Kepler's Supernova Remnant: A Type Ia Event with Circumstellar Interaction
S. P. Reynolds, K. J. Borkowski, U. Hwang +4
We present initial results of a 750 ks Chandra observation of the remnant of Kepler's supernova of AD 1604. The strength and prominence of iron emission, together with the absence…
Fission Cycling in a Supernova r-process
J. Beun, G. C. McLaughlin, R. Surman +1
Recent halo star abundance observations exhibit an important feature of consequence to the r-process: the presence of a main r-process between the second and third peaks which is c…
Observations of X-rays and Thermal Dust Emission from the Supernova Remnant Kes 75
T. D. Morton, P. Slane, K. J. Borkowski +4
We present Spitzer Space Telescope and Chandra X-ray Observatory observations of the composite Galactic supernova remnant Kes 75 (G29.7-0.3). We use the detected flux at 24 microns…
Oscillation Effects and Time Variation of the Supernova Neutrino Signal
James P. Kneller, Gail C. McLaughlin, Justin Brockman
The neutrinos detected from the next Galactic core-collapse supernova will contain valuable information on the internal dynamics of the explosion. One mechanism leading to a tempor…
Spitzer Space Telescope Observations of Kepler's Supernova Remnant: A Detailed Look at the Circumstellar Dust Component
William P. Blair, Parviz Ghavamian, Knox S. Long +4
We present 3.6 - 160 micron infrared images of Kepler's supernova remnant (SN1604) obtained with the IRAC and MIPS instruments on the Spitzer Space Telescope. We also present MIPS…
Particle Acceleration in Supernova Remnants and the Production of Thermal and Nonthermal Radiation
Donald C. Ellison, Daniel J. Patnaude, Patrick Slane +2
If highly efficient, cosmic ray production can have a significant effect on the X-ray emission from SNRs as well as their dynamical evolution. Using hydrodynamical simulations incl…
Linear growth of spiral SASI modes in core-collapse supernovae
John M. Blondin, Samantha Shaw
Two-dimensional axisymmetric simulations have shown that the post-bounce accretion shock in core collapse supernovae is subject to the Spherical Accretion Shock Instability, or SAS…
Pulsar spins from an instability in the accretion shock of supernovae
John M. Blondin, Anthony Mezzacappa
Rotation-powered radio pulsars are born with inferred initial rotation periods of order 300 ms (some as short as 20 ms) in core-collapse supernovae. In the traditional picture, thi…
X-Ray Emission from Planetary Nebulae Calculated by 1D Spherical Numerical Simulations
Muhammad Akashi, Noam Soker, Ehud Behar +1
We calculate the X-ray emission from both constant and time evolving shocked fast winds blown by the central stars of planetary nebulae (PNs) and compare with observations. Using s…
A New Young Galactic Supernova Remnant Containing a Compact Object: G15.9+0.2
S. P. Reynolds, K. J. Borkowski, U. Hwang +3
We identify the radio-emitting shell-type supernova remnant G15.9+0.2 as a relatively young remnant containing an X-ray point source that may be its associated neutron star. The in…