Birth of a radio supernova remnant in supernova 1987A

Details Birth of a radio supernova remnant in supernova 1987A Birth of a radio supernova remnant in supernova 1987A

Jan 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992natur.355..147s&link_type=abstract

Nature (ISSN 0028-0836), vol. 355, Jan. 9, 1992, p. 147-149.

Other

66

Radio Bursts, Supernova Remnants, Supernova 1987A, Extragalactic Radio Sources, Forbidden Transitions, Oxygen Spectra, Synchrotron Radiation

Scientific paper

Recent radio observations of SN 1987A show that the source has increased in strength at all monitored frequencies between 843 MHz and 8.6 GHz, with considerable variations in spectral index. The extended radio emission is centered within 0.5 arcsec of the optical supernova, and probably lies within the forbidden O III ring imaged by the HST. The emission is interpreted as optically thin synchrotron emission from shock-accelerated electrons. This is the first time the birth of a nearby radio SNR has been witnessed, and future observations will permit the structure of the SNR to be compared with the many other known radio SNRs.

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