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19922026
most citedFirst Results from KamLAND: Evidence for Reactor Anti-Neutrino Disappearance

2.7k citations

Showing 2005 · astro-phShow all

15 papers · 2 filters

astro-ph2005★ 65 cited

Discovery of the X-ray Counterpart to the Rotating Radio Transient J1819--1458

S. P. Reynolds, K. J. Borkowski, B. M. Gaensler +10

We present the discovery of the first X-ray counterpart to a Rotating RAdio Transient (RRAT) source. RRAT J1819--1458 is a relatively highly magnetized (B G)…

astro-ph2005

Supernova Remnant 1987A: High Resolution Images and Spectrum from Chandra Observations

Sangwook Park, Svetozar A. Zhekov, David N. Burrows +3

We report on the morphological and spectral evolution of SNR 1987A from the monitoring observations with the Chandra/ACIS. As of 2005, the X-ray-bright lobes are continuously brigh…

astro-ph2005★ 241 cited

Constraints on the Physics of Type Ia Supernovae from the X-Ray Spectrum of the Tycho Supernova Remnant

Carles Badenes, Kazimierz J. Borkowski, John P. Hughes +2

In this paper we use high quality X-ray observations from XMM-Newton and Chandra to gain new insights into the explosion that originated Tycho's supernova 433 years ago. We perform…

astro-ph2005★ 178 cited

Nucleosynthesis in the Outflow from Gamma Ray Burst Accretion Disks

R. Surman, G. C. McLaughlin, W. R. Hix

We examine the nucleosynthesis products that are produced in the outflow from rapidly accreting disks. We find that the type of element synthesis varies dramatically with the degre…

astro-ph2005★ 66 cited

Discovery of Outlying, High-Velocity Oxygen-Rich Ejecta in Cassiopeia A

R. A. Fesen, M. C. Hammell, J. Morse +7

Hubble Space Telescope images of the young Galactic supernova remnant Cassiopeia A reveal a far larger population of outlying, high-velocity knots of ejecta with a broader range of…

astro-ph2005★ 14 cited

Morphology of synchrotron emission in young supernova remnants

Gamil Cassam-Chenai, Anne Decourchelle, Jean Ballet +1

In the framework of test-particle and cosmic-ray modified hydrodynamics, we calculate synchrotron emission radial profiles in young ejecta-dominated supernova remnants (SNRs) evolv…

astro-ph2005★ 204 cited

The Spherical Accretion Shock Instability in the Linear Regime

John M. Blondin, Anthony Mezzacappa

We use time-dependent, axisymmetric, hydrodynamic simulations to study the linear stability of the stalled, spherical accretion shock that arises in the post-bounce phase of core-c…

astro-ph2005

Test-Particle Diffusive Shock Acceleration in Relativistic Shocks

Donald C. Ellison

We present results from a fully relativistic Monte Carlo simulation of diffusive shock acceleration (DSA) in unmodified (i.e., test-particle) shocks. The computer code uses a singl…

astro-ph2005★ 2 cited

Thermal Particle Injection in Nonlinear Diffusive Shock Acceleration

Donald C. Ellison, Pasquale Blasi, Stefano Gabici

Particle acceleration in collisionless astrophysical shocks, i.e., diffusive shock acceleration (DSA), is the most likely mechanism for producing cosmic rays, at least below 10^{15…

astro-ph2005★ 51 cited

Radio and X-ray Profiles in Supernova Remnants Undergoing Efficient Cosmic Ray Production

Donald C. Ellison, Gamil Cassam-Chenai

The strong shocks in young supernova remnants (SNRs) should accelerate cosmic rays (CRs) and no doubt exists that \rel electrons are produced in SNRs. However, direct and convincin…

astro-ph2005★ 38 cited

Chandra Observations of Shock Kinematics in Supernova Remnant 1987A

S. A. Zhekov, R. McCray, K. J. Borkowski +2

We report the first results from deep X-ray observations of the SNR 1987A with the Chandra LETG. Temperatures inferred from line ratios range from 0.1 - 2 keV and increase with ion…

astro-ph2005★ 200 cited

Chandra HETGS Multi-Phase Spectroscopy of the Young Magnetic O Star theta^1 Orionis C

Marc Gagne, Mary E. Oksala, David H. Cohen +5

We report on four Chandra grating observations of the oblique magnetic rotator theta^1 Ori C (O5.5 V) covering a wide range of viewing angles with respect to the star's 1060 G dipo…

astro-ph2005★ 8 cited

Multiwavelength Spectral Models for SNR G347.3-0.5 from Non-Linear Shock Acceleration

Matthew G. Baring, Donald C. Ellison, Patrick O. Slane

The remnant G347.3-0.5 exhibits strong shell emission in the radio and X-ray bands, and has a purported detection in the TeV gamma-ray band by the CANGAROO-II telescope. The CANGAR…

astro-ph2005★ 65 cited

Thermal X-Ray Emission from Shocked Ejecta in Type Ia Supernova Remnants II: Parameters Affecting the Spectrum

C. Badenes, K. J. Borkowski, E. Bravo

The supernova remnants left behind by Type Ia supernovae provide an excellent opportunity for the study of these enigmatic objects. In a previous work, we showed that it is possibl…

astro-ph2005★ 6 cited

A Model Grid for the Spectral Analysis of X-ray Emission in Young Type Ia Supernova Remnants

C. Badenes, E. Bravo, K. Borkowski

We address a new set of models for the spectral analysis of the X-ray emission from young, ejecta-dominated Type Ia supernova remnants. These models are based on hydrodynamic simul…