TL;DR
This review discusses how stellar evolution provides important constraints on low-mass particles like neutrinos and axions, complementing cosmological and laboratory bounds.
Contribution
It offers an updated synthesis of stellar-evolution limits on low-mass particles and compares them with cosmological and experimental constraints.
Findings
Stellar observations set competitive bounds on axion properties.
Neutrino emission impacts stellar cooling rates.
Constraints from stars complement laboratory and cosmological data.
Abstract
Low-mass particles such as neutrinos, axions, other Nambu-Goldstone bosons and gravitons are produced in the hot and dense interior of stars. Therefore, astrophysical arguments constrain the properties of these particles in ways which are often complementary to cosmological arguments and to laboratory experiments. This review provides an update on the most important stellar-evolution limits and discusses them in the context of other information from cosmology and laboratory experiments.
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