Supernova studies. II - The effect of redshift on supernovae IA light curves

Details Supernova studies. II - The effect of redshift on supernovae IA light curves Supernova studies. II - The effect of redshift on supernovae IA light curves

Mar 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26a...229....1l&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 229, no. 1, March 1990, p. 1-6. Research supported by SNSF.

Astronomy and Astrophysics

Astrophysics

22

Cosmology, Light Curve, Red Shift, Supernovae, Astronomical Spectroscopy, Brightness Distribution, Hubble Diagram

Scientific paper

The use of supernovae type Ia for distance determinations at large redshifts will be a main route to measure the cosmological parameters H(0) and q(0). Their property as standard candles (uniform light curves, similar spectral evolutions, small scatter of absolute peak magnitudes) allows the calculation of standard K-corrections and, hence, predictions of expected apparent magnitudes and shapes of light curves at cosmological distances. The further influence of time dilation, if the uiverse is expanding, provides a fundamental test to the nature of cosmological redshifts. In principle, this test is possible already with supernovae at moderate redshifts, like SN 1988U (z = 0.3).

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