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Fall 2026

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Showing 2 projects out of 2 found. On page 1 out of 1.
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Measuring Distances to Supernovae to Constrain the Universe’s Present Day Expansion Rate

Taylor Hoyt - Staff Researcher, Physics

Status: Current Term Now Closed     Weekly Hours: to be negotiated     Location: On Campus

Measurements of the speed at which the universe is expanding today, referred to as the Hubble constant, allow us to test the accuracy of contemporary cosmological models. Some recent measurements of the Hubble constant suggest a significant gap in the leading Lambda cold dark matter paradigm, coined the Hubble Tension...

Calibrating Spectroscopy of Type Ia supernovae to measure the Hubble constant.

Taylor Hoyt - Staff Researcher, Physics

Status: Current Term Now Closed     Weekly Hours: to be negotiated     

The Nearby Supernova Factory (SNfactory; Aldering+02,04) at Berkeley Lab has developed a model for inferring the distances between Type Ia supernovae (SNe Ia) that is about twice as accurate as previous ones. The model uses the spectral differences between different SNe to constrain variations in their intrinsic luminosities. The...

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