The discovery of a type IA supernova at a redshift of 0.31

Details The discovery of a type IA supernova at a redshift of 0.31 The discovery of a type IA supernova at a redshift of 0.31

Jun 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989natur.339..523n&link_type=abstract

Nature (ISSN 0028-0836), vol. 339, June 15, 1989, p. 523-525.

Physics

89

Galactic Clusters, Red Shift, Supernovae, Light Curve, Spectral Bands, Stellar Spectrophotometry, Telescopes

Scientific paper

A distant supernova event that occurred in a faint member of the distant galaxy cluster AC118, at a redshift of z = 0.31, has been identified and is studied. Extensive photometry and some spectrometry of the event strongly supports the hypothesis that the event was a type Ia supernova whose time-dilated light curve matches that of present-day supernovae of this class. The precision to which its maximum brightness can be ascertained is discussed, and the implications which such deep supernova searches may have for observational cosmology are indicated.

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