High-Z Supernova Search Team

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The High-Z Supernova Search Team (High-Z SN Search, High-Z SS) was an international collaboration led by Brian P. Schmidt who discovered the accelerated expansion of the universe based on mapping of type I supernovae in 1998 , as well independently a second team, the Supernova Cosmology Project under Saul Perlmutter . The discovery was one of the greatest successes in cosmology and was honored in 2011 with Nobel Prizes in Physics to Schmidt, Adam Riess and Perlmutter and with many other prizes. The high Z alludes to the high redshift when observing distant supernovae.

The team was founded in 1994 by Schmidt, then a post-doctoral student at Harvard University , and the astronomer Nicholas B. Suntzeff at the Cerro Tololo Inter-American Observatory (CTIO) in Chile. Founding members of the team were also R. Chris Smith, Robert Schommer, Mark M. Phillips, Mario Hamuy, Roberto Aviles, Jose Maza, Adam Riess , Robert Kirshner , Jason Spiromilio and Bruno Leibundgut. In 1995 Schmidt was elected to lead the team (then at the Mount Stromlo Observatory of the Australian National University ). A total of around 20 astronomers from the USA, Europe, Australia and Chile were involved. In addition to the Victor M. Blanco telescope at the CTIO for the discovery of supernovae, the telescopes of the Keck Observatory and the European Southern Observatory were mainly used for the spectroscopic determination of the redshift.

The team's original proposal for observation time at Cerro Tolo 1994

In addition to the Nobel Prize, the team or members of the team received the following prizes for the discovery:

The project ESSENCE emerged from Christopher Stubbs (Harvard University) and the Higher-Z team from Adam Riess (Johns Hopkins University, Space Telescope Science Institute).

Members

Fonts

  • Brian Schmidt, Adam Riess, Alexei Filippenko, Robert Kirshner and others (High-Z Supernova Search Team): Observational evidence from supernovae for an accelerating universe and a cosmological constant, Astron. J., Volume 116, 1998, pp. 1009-1038 , Arxiv

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