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“The data that we examined are indeed holding up against these claims of the demise of Type Ia supernovae as a tool for measuring the universe,” said Daniel Scolnic, a postdoctoral scholar at UChicago’s Kavli Institute for Cosmological Physics and co-author of the new research published in Monthly Notices of the Royal Astronomical Society. “We should not be persuaded by these other claims just because they got a lot of attention, though it is important to continue to question and strengthen our fundamental assumptions.”
The new findings are reassuring for researchers who use Type Ia supernovae to gain an increasingly precise understanding of dark energy, said Joshua A. Frieman, senior staff member at the Fermi National Accelerator Laboratory who was not involved in the research. “The impact of this work will be to strengthen our confidence in using Type Ia supernovae as cosmological probes,” he said.