Photometry of SK-69°202, the Progenitor of SN 1987A from 1896 to 1954

Details Photometry of SK-69°202, the Progenitor of SN 1987A from 1896 to 1954 Photometry of SK-69°202, the Progenitor of SN 1987A from 1896 to 1954

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004javso..32...89p&link_type=abstract

The Journal of the American Association of Variable Star Observers, vol. 32, no. 2, p. 89-94

Physics

4

Photometry, Supernova, Sn 1987A

Scientific paper

We investigated possible variability of the B3Ia-type progenitor of SN 1987A on a large sample of blue-sensitive photographic plates at the Harvard College Observatory. The observed plates covered the time period 1896-1954. No variability of the star was found at the 0.3-magnitude level, which is consistent with the results of previous studies on its variability. How these results fit into the context of the present understanding of the evolution of this progenitor is discussed.

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