Axions Found in Neutron Stars

This is a Amsterdam news story, published by Phys Org, that relates primarily to Oxford news.

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axion clouds

Phys Org

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Physicists show that neutron stars may be shrouded in clouds of axions

Summary

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86% Informative

A team of physicists from the universities of Amsterdam , Princeton and Oxford have shown that extremely light particles known as axions may occur in large clouds around neutron stars.

These axions could form an explanation for the elusive dark matter that cosmologists search for.

As time goes by, these particles should gradually form a hazy cloud around the neutron star.

If axions exist, axion clouds should form around most, perhaps even all, neutron stars.

They should in general be very dense (forming a density possibly twenty orders of magnitude larger than local dark matter densities) because of this they should lead to powerful observational signatures.

These signatures could be observed and used to probe the interaction between axions and photons beyond current limits.

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