Spectroscopic and photometric observations of SN1987A. V - Days 386-616

Details Spectroscopic and photometric observations of SN1987A. V - Days 386-616 Spectroscopic and photometric observations of SN1987A. V - Days 386-616

Mar 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989mnras.237p..55c&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 237, March 1, 1989, p. 55P-68P.

Physics

Optics

44

Astronomical Photometry, Magellanic Clouds, Spectroscopic Analysis, Supernova 1987A, Ubv Spectra, Bolometers, Cassegrain Optics, Energy Sources, X Ray Sources

Scientific paper

Spectroscopic and photometric observations are presented of SN1987A in the Large Magellanic Cloud made between days 386 and 616 after the Kamiokande-II neutrino event. During this period the bolometric flux from the supernova measured over the U to M wavelength range has continued to decline faster than the Co-56 decay rate. By day 560 the flux in this wavelength range accounts for only half of that expected from Co-56 decay. The estimated total flux is consistent with Co-56 remaining the sole energy source of the supernova over the period considered.

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