The history of SN 1986J and the emergence of a new compact radio component in its center
The history of SN 1986J and the emergence of a new compact radio component in its center
- Neue Suche nach: Bietenholz, Michael F.
- Neue Suche nach: Bartel, Norbert
- Neue Suche nach: Rupen, Michael P.
- Neue Suche nach: Bietenholz, Michael F.
- Neue Suche nach: Bartel, Norbert
- Neue Suche nach: Rupen, Michael P.
AbstractWe review the history of the unusual Type II supernova 1986J in the nearby spiral galaxy NGC 891. A series of VLBI observations have shown the expanding shell structure and allowed the expansion curve to be determined. The integrated radio spectrum and radio lightcurve have also been monitored. The spectrum was a power-law before 1998, after which an inversion appeared above 5GHz. Our recent high-frequency VLBI observations showed that this inverted-spectrum emission was associated not with the shell emission, but rather with a compact component almost precisely in the center of the expanding shell. The new component is likely radio emission associated with the black-hole or neutron star compact remnant of the explosion, which would mark the first direct observational link between a modern supernova and such a compact remnant.
Dokumentinformationen
The history of SN 1986J and the emergence of a new compact radio component in its center
Advances in Space Research ; 35 , 6 ; 1052-1056
2005-02-18
5 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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