description Peter Garnavich Overview
Peter Garnavich is an American astronomer at the University of Notre Dame and a member of the High-Z Supernova Search Team. His observational work contributed to the 1998 finding that the expansion of the universe is accelerating, based on measurements of distant Type Ia supernovae. These results helped establish the cosmological importance of dark energy and remain part of the evidence base for modern observational cosmology.
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What discovery is Peter Garnavich associated with?
Peter Garnavich was part of the High-Z Supernova Search Team, whose observations contributed to the 1998 finding that cosmic expansion is accelerating. The evidence came from distant Type Ia supernovae.
Why are Type Ia supernovae useful in cosmology?
Type Ia supernovae can serve as distance indicators because their observed brightness can be calibrated. Comparing distance with redshift helps astronomers study the expansion of the universe.
Where does Peter Garnavich work?
He is an American astronomer at the University of Notre Dame. His observational research includes distant supernovae and cosmology.
What does an accelerating universe mean?
It means that the expansion of space is speeding up rather than slowing down under gravity alone. The 1998 supernova result became a major clue in the study of dark energy.
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