Results 41 to 50 of about 5,465 (202)

Hubble Space Telescope Proper Motion Measurements of Supernova Remnant N132D: Center of Expansion and Age

open access: yesThe Astrophysical Journal, 2023
We present proper motion measurements of the oxygen-rich ejecta of the LMC supernova remnant N132D using two epochs of Hubble Space Telescope Advanced Camera for Surveys data spanning 16 years.
John Banovetz   +10 more
doaj   +1 more source

Supernova remnants dynamics

open access: yes, 2017
Supernova remnants are the site of a number of physical processes (shock-heating, non-equilibrium ionization, hydrodynamic instabilities, particle acceleration, magnetic field amplification).
Anne Decourchelle
core   +1 more source

Observations of supernova remnants with the Sardinia Radio Telescope [PDF]

open access: yes, 2016
In the frame of the Astronomical Validation activities for the 64m Sardinia Radio Telescope, we performed 5-22 GHz imaging observations of the complex-morphology supernova remnants (SNRs) W44 and IC443.
PILIA, Maura   +13 more
core  

Simulating supernova feedback in galaxy disks [PDF]

open access: yes, 2012
In this thesis I examine supernova feedback in hydrodynamical simulations of galaxy disks. Understanding this process entails the numerical evaluation of cooling in radiative shocks, and we present a set of simulations using two widely used numerical ...
CREASEY, PETER,EDWARD   +1 more
core  

Searching for Supernova Remnants

open access: yes, 1998
The UKST/AAO Galactic Plane Hα Survey has the potential to discover many new objects not visible on red plates taken in past surveys. Recent radio surveys have identified large numbers of new supernova remnants, very few of which have been optically ...
W. J. Zealey, A. Walker
core   +1 more source

Supernova Remnants [PDF]

open access: yesHighlights of Astronomy, 1974
AbstractThe present structure and recent changes in Cas A are discussed. On the deepest available exposures the optical remnant of this supernova is seen to consist of an almost complete shell. The southern part of this shell is outlined by knots that have developed during the last decade.
openaire   +2 more sources

New Radio Observations of the Supernova Remnant CTA 1

open access: yesThe Astrophysical Journal
We present new radio images of the supernova remnant (SNR) CTA 1 at 1420 and 408 MHz, and in the 21 cm line of H i observed with the Dominion Radio Astrophysical Observatory Synthesis Telescope and at 1420 MHz observed with the Effelsberg 100 m telescope.
Tam Do   +5 more
doaj   +1 more source

Doppler Broadening and Line-of-sight Effects in Core-collapse Supernovae and Young Remnants

open access: yesThe Astrophysical Journal, 2023
The dynamics and spectral characteristics of supernova ejecta reveal details of the supernova energetics, explosive nucleosynthesis, and evolution of the progenitor.
Taylor Jacovich   +6 more
doaj   +1 more source

Modelling high-resolution spatially-resolved Supernova Remnant spectra with the Sardinia Radio Telescope [PDF]

open access: yes, 2016
Supernova Remnants (SNRs) exhibit spectra featured by synchrotron radio emission arising from the relativistic electrons, and high-energy emission from both leptonic (Bremsstrahlung and Inverse Compton) and hadronic processes (π0 mesons decay) which are ...
PILIA, Maura   +14 more
core  

SUPERNOVA 1987A: A TEMPLATE TO LINK SUPERNOVAE TO THEIR REMNANTS [PDF]

open access: yesThe Astrophysical Journal, 2015
16 pages, 11 Figures; accepted for publication on ...
S. Orlando   +3 more
openaire   +3 more sources

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