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Neutron stars aren't dark matterwe figured that out a while ago. But new research is telling us that they may be dark matter factories. They may produce the exotic axion, one of the most popular dark matter candidates.

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Hosted by Matt O'Dowd
Written by Matt Caplan, Anirudh Prabhu, & Matt O'Dowd
Post Production by Leonardo Scholzer, Yago Ballarini & Stephanie Faria
Directed by Andrew Kornhaber
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Executive in Charge for PBS: Maribel Lopez
Director of Programming for PBS: Gabrielle Ewing
Assistant Director of Programming for PBS: John Campbell

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Journal Papers Referenced In Episode:
Axion clouds around neutron stars: https://journals.aps.org/prx/abstract...

Polar cap pair cascades as the source of pulsar radio emission: https://journals.aps.org/prl/abstract...

Axions can be produced above pulsar polar caps: https://journals.aps.org/prd/abstract...

Detailed simulations of polar cap cascades: https://iopscience.iop.org/article/10...

Constraints on axions from nonobservation of radio emission from 27 pulsars: https://journals.aps.org/prl/abstract...

Pulsar nulling from axion clouds: https://journals.aps.org/prl/accepted...

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