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The Light Curve of Supernova 1971 I

Journal Article · · Publications of the Astronomical Society of the Pacific
DOI:https://doi.org/10.1086/129462· OSTI ID:4325598
Light and color curves are presented for the 1971 supernova in NGC 5055. The light curves were derived from photoelectric observations, and photographic observations calibrated with a photoelectric sequence. The dates and B, V magnitudes of maximum light are established. The form of the light curve is consistent with previous spectrographic determinations that the supernova was of Type I. Evidence is presented, however, to suggest that the spectroscopic behavior of the supernova was anomalous. The date of maximum in the light curve does not correspond to the date which would be indicated by the appearance of characteristic Type I spectral features. A (13 - V) color curve is presented and is used to derive a reddening of 0.35m for the supernova. Finally, the consequent visual absorption of 1.05m is used to obtain an absolute visual magnitude for the supernova of -18.6.
Research Organization:
Univ. of Illinois, Urbana
Sponsoring Organization:
USDOE
NSA Number:
NSA-29-021746
OSTI ID:
4325598
Journal Information:
Publications of the Astronomical Society of the Pacific, Journal Name: Publications of the Astronomical Society of the Pacific Vol. 85; ISSN 0004-6280
Publisher:
Astronomical Society of the Pacific
Country of Publication:
Country unknown/Code not available
Language:
English

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