Discovery of the most distant supernovae and the quest for Omega

Goldhaber, Gerson; Perlmutter, Saul; Gabi, Silvia; Goobar, Ariel; Kim, Alex; Kim, Mathew; Pain, Reynald; Pennypacker, Carl; Small, Ivan; Boyle, Brian

doi:10.1016/0920-5632(94)00778-T

Discovery of the most distant supernovae and the quest for Omega

Gerson Goldhaber
(
- LBL, Berkeley and
- UC, Berkeley, CfPA
)
,
Saul Perlmutter
(
- LBL, Berkeley and
- UC, Berkeley, CfPA
)
,
Silvia Gabi
(
- LBL, Berkeley
)
,
Ariel Goobar
(
- LBL, Berkeley
)
,
Alex Kim
(
- LBL, Berkeley
)

May, 1994

8 pages

Part of Future physics and accelerators. Proceedings, 1st Arctic Workshop, Saariselka, Finland, August 21-26, 1994

Published in:

Nucl.Phys.B Proc.Suppl. 38 (1995) 435-439

Contribution to:

DOI:

10.1016/0920-5632(94)00778-T

Report number:

LBL-36361

View in:

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Abstract: (Elsevier)

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

supernova
astrophysics: density
photon: cosmic radiation
deceleration
experimental results

References(6)

Figures(0)

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