Discovery of the most distant supernovae and the quest for (Omega)

Details Discovery of the most distant supernovae and the quest for (Omega) Discovery of the most distant supernovae and the quest for (Omega)

May 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994stin...9528197g&link_type=abstract

Presented at the 1st Artic Workshop on Furture Physics and Accelerators, Saariselka, Finland, 21-26 Aug. 1994

Physics

Cosmology, Deceleration, Supernovae, Universe, Density, Expansion

Scientific paper

A search for cosmological supernovae has discovered a number of a type Ia supernovae. In particular, one at z = 0.458 is the most distant supernovae yet observed. There is strong evidence from measurements of nearby type Ia supernovae that they can be considered as 'standard candles'. The authors plan to use these supernovae to measure the deceleration in the general expansion of the universe. The aim of their experiment is to try and observe and measure about 30 such distant supernovae in order to obtain a measurement of the deceleration parameter qo which is related to (Omega). Here (Omega) is the ratio of the density of the universe to the critical density, and they expect a measurement with an accuracy of about 30%.

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