output
19922026
Showing 2001 · astro-phShow all

8 papers · 2 filters

astro-ph2001★ 79 cited

Hubble Space Telescope WFPC-2 Imaging of Cassiopeia A

Robert A. Fesen, Jon A. Morse, Roger A. Chevalier +4

The young SNR Cassiopeia A was imaged with WFPC-2 through four filters selected to capture the complete velocity range of the remnant's main shell in several important emission lin…

astro-ph2001★ 304 cited

Pulsar Wind Nebulae in Evolved Supernova Remnants

John M. Blondin, Roger A. Chevalier, Dargan M. Frierson

For pulsars similar to the one in the Crab Nebula, most of the energy input to the surrounding wind nebula occurs on a timescale of less than 1000 years; during this time, the nebu…

astro-ph2001★ 11 cited

Tests of Galactic Cosmic Ray Source Models

L O'C Drury, D C Ellison, F A Aharonian +9

This report discusses the possibilities for observational tests of current models and ideas regarding the origin of the Galactic Cosmic Rays using facilities which are already avai…

astro-ph2001★ 75 cited

Broad-band Observations and Modeling of the Shell-Type Supernova Remnant G347.3-0.5

Donald C. Ellison, Patrick Slane, Bryan M. Gaensler

The supernova remnant G347.3--0.5 emits a featureless power-law in X-rays, thought to indicate shock-acceleration of electrons to high energies. We here produce a broad-band spectr…

astro-ph2001★ 44 cited

Spatially-resolved Thermal Continuum Absorption against the Supernova Remnant W49B

C. K. Lacey, T. Joseph W. Lazio, Namir E. Kassim +3

We present sub-arcminute resolution imaging of the Galactic supernova remnant W49B at 74 MHz (25") and 327 MHz (6"), the former being the lowest frequency at which the source has b…

astro-ph2001★ 159 cited

Rayleigh-Taylor Instabilities in Young Supernova Remnants Undergoing Efficient Particle Acceleration

John M. Blondin, Donald C. Ellison

We employ hydrodynamic simulations to study the effects of high shock compression ratios, as expected for fast shocks with efficient particle acceleration, on the convective instab…

astro-ph2001★ 4 cited

Australia Telescope Compact Array Observations of the OH Star Roberts 22: Resolved Images of OH Emission

Kristy Dyer, W. Miller Goss, Athol Kemball

We have imaged the unusual OH/IR object G 284-0.8 (Roberts 22) in the OH transitions at 1612, 1665 and 1667 MHz using the Australia Telescope Compact Array in Narrabri, NSW, Austra…

astro-ph2001★ 1 cited

Spatially Varying X-ray Synchrotron Emission in SN 1006

Kristy Dyer, Stephen Reynolds, Kazik Borkowski +1

A growing number of both galactic and extragalactic supernova remnants show non-thermal (non-plerionic) emission in the X-ray band. New synchrotron models, realized as SRESC and SR…