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ScienceQuiet 8d · day 8

Neutrino flavor-switching may explain missing supernovae in universe

A new Physical Review D paper suggests neutrinos' ability to change identity could resolve longstanding discrepancies in supernova observations.

newest coverage 7d agosummary written 6d ago4 pieces18 likes & upvotes NewswiresBlueskyGoogle News

What to know

  • Current supernova models observe far fewer explosions than star formation rates would predict, suggesting the underlying theory is incomplete.
  • A new Physical Review D paper proposes that neutrino flavor-switching—particles changing identity as they escape collapsing cores—may carry away energy in ways existing models don't capture.
  • This mechanism could explain not only the supernova deficit but also the unexplained 'mass gap' in black hole formation observed through gravitational wave data.

“if we compare the rate of star formation in the Universe to the frequency of supernovae, there's a discrepancy; it appears we're forming enough stars to fuel a much higher frequency of supernovae than we actually observe.”

John Timmer, Science writer · Ars Technica ↗

John Timmer Science writer, Ars TechnicaPhysical Review D Academic journal publishing the research

Neutrino flavor-switching may explain missing supernovae in universe
arstechnica.com

How it unfolded 1 development · click the chart to see its coverage articlesposts

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  1. 1

    Physical Review D paper proposes flavor-changing neutrinos as supernova model fix

    Ars Technica reports on a paper being released by Physical Review D that suggests neutrino flavor-switching may explain discrepancies between observed and predicted supernova rates. Current models don't account for neutrinos' ability to change identity, a fundamental feature of these particles.

    “Neutrinos play a key role in our current models of supernovae, and right now, those models don't take into account one of neutrinos' most striking features: their ability to change identity.”
    — John Timmer

Also covered reported alongside — the timeline has no entry for these yet

  1. 2 outlets What happens when neutrinos swap identities inside a supernova?

    first by Ars Technica, 7d ago · also Ars Science