Results 21 to 30 of about 37,813 (241)

RX-J0852−4622: THE NEAREST HISTORICAL SUPERNOVA REMNANT – AGAIN

open access: yesActa Polytechnica, 2013
RX-J0852−4622, a supernova remnant, is demonstrated to be closer than 500 pc, based on the measurements of the angular radius, the angular expansion rate and the TeV g-ray flux.
Bernd Aschenbach
doaj   +1 more source

Nonthermal Radiation from Supernova Remnant Shocks [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2013
Most of high energy cosmic rays (CRs) are thought to be produced by diffusive shock acceleration (DSA) at supernova remnants (SNRs) within the Galaxy.
Hyesung Kang
doaj   +1 more source

Searching for New Supernova Remnant Candidates from the VTSS Survey

open access: yesCumhuriyet Science Journal, 2022
The Virginia Tech Spectral Line Survey (VTSS) Galactic Plane Hydrogen-Alpha Survey has the strong ability to search and discover many different types of objects that cannot be identified clearly on red plates and by other Multi-Wavelength Sky Surveys ...
Elif Beklen
doaj   +1 more source

Simulations of stripped core-collapse supernovae in close binaries [PDF]

open access: yes, 2015
We perform smoothed-particle hydrodynamical simulations of the explosion of a helium star in a close binary system, and study the effects of the explosion on the companion star as well as the effect of the presence of the companion on the supernova ...
Rimoldi, Alex   +2 more
core   +3 more sources

Multiple-supernova remnants [PDF]

open access: yesInternational Astronomical Union Colloquium, 1989
ABSTRACTThe present observational and theoretical status of multiple-supernova remnants is briefly reviewed, and evolutionary models of the remnants around OB associations are presented. The remnants are followed for up to almost 30 Myr in various galactic environments (Gaussian or composite disks combined with cold or hot halos).
openaire   +1 more source

The Large Magellanic Cloud Supernova Remnant MCSNR J0550-6823

open access: yesThe Astrophysical Journal, 2023
We describe radio, optical, and X-ray observations of this rather faint, old Large Magellanic Cloud (LMC) supernova remnant. The [O iii ] emission forms a distinct shell, the remnant of the outer shock, which encloses the radio and X-ray emission and ...
Frederick D. Seward, Sean D. Points
doaj   +1 more source

Nonthermal X-ray emission from young Supernova Remnants [PDF]

open access: yes, 2000
The cosmic-ray spectrum up to the knee ($E\sim 10^{15}$ eV) is attributed to acceleration processes taking place at the blastwaves which bound supernova remnants. Theoretical predictions give a similar estimate for the maximum energy which can be reached
Achterberg, Abraham   +2 more
core   +3 more sources

Supernova 1987A: a Template to Link Supernovae to their Remnants [PDF]

open access: yes, 2015
The emission of supernova remnants reflects the properties of both the progenitor supernovae and the surrounding environment. The complex morphology of the remnants, however, hampers the disentanglement of the two contributions.
Bocchino, F.   +3 more
core   +2 more sources

Is there a hidden hole in Type Ia supernova remnants? [PDF]

open access: yes, 2011
In this paper we report on the bulk features of the hole carved by the companion star in the material ejected during a Type Ia supernova explosion. In particular we are interested in the long term evolution of the hole as well as in its fingerprint in ...
Badenes   +24 more
core   +3 more sources

Dynamics of a Supernova Envelope in a Cloudy Interstellar Medium [PDF]

open access: yes, 2015
The evolution of a supernova remnant in a cloudy medium as a function of the volume filling factor of the clouds is studied in a three-dimensional axially symmetrical model.
Korolev, V. V.   +3 more
core   +1 more source

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