hh.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Discovery of shell-like radio-structure in SN1993J
Departamento de Astronomía, Universitat de València, Valencia, Spain & Harvard-Smithsonian Ctr. Astrophys., Cambridge, United States .
Inst. de Astrofis. de Andalucia, Spain.
Departamento de Astronomía, Universitat de València, Valencia, Spain.
National Radio Astronomy Observatory, Socorro, United States.
Show others and affiliations
1995 (English)In: Nature, ISSN 0028-0836, E-ISSN 1476-4687, Vol. 373, no 6509, 44-45 p.Article in journal (Refereed) Published
Abstract [en]

SUPERNOVA explosions are poorly understood, partly because of difficulties in modelling them theoretically(1), and partly because there have been no supernovae observed in our Galaxy since the invention of the telescope. But the recent discovery(2) of supernova SN1993J in the nearby galaxy M81 offers an opportunity to investigate the evolution of the remnant, and its interaction with the surrounding interstellar medium, at high resolution. Here we present radio observations of SN1993J, made using very-long-baseline interferometry, which show the development of a shell structure. This 8-month-old radio shell is the youngest ever discovered in a supernova. The data suggest that the supernova explosion and the expanding shell of the remnant have nearly spherical symmetry, with small deviations where some parts of the shell are brighter than others. If these deviations arise because of variations in the density of the shell, this may reconcile earlier reports of symmetric radio emission(3) with the observed optical asymmetry(4,5), as the density variations could easily cause the latter. We infer that the radio emission is generated at the interface(6-9), where the surrounding gas is shocked by the ejecta.

Place, publisher, year, edition, pages
London: Nature Publishing Group, 1995. Vol. 373, no 6509, 44-45 p.
National Category
Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:hh:diva-22863DOI: 10.1038/373044a0ISI: A1995QA23900048Scopus ID: 2-s2.0-0028955583OAI: oai:DiVA.org:hh-22863DiVA: diva2:629892
Available from: 2013-06-17 Created: 2013-06-17 Last updated: 2015-06-02Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Bååth, L.B.
In the same journal
Nature
Astronomy, Astrophysics and Cosmology

Search outside of DiVA

GoogleGoogle Scholar

Altmetric score

Total: 83 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf