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White dwarfs as a probe of exceptionally light QCD axions
- Publication Year :
- 2022
-
Abstract
- We study the effects of exceptionally light QCD axions on the stellar configuration of white dwarfs. At finite baryon density, the non-derivative coupling of the axion to nucleons displaces the axion from its in-vacuum minimum which implies a reduction of the nucleon mass. This dramatically alters the composition of stellar remnants. In particular, the modifications of the mass-radius relationship of white dwarfs allow us to probe large regions of unexplored parameter space without requiring that axions are dark matter.<br />Comment: 13 pages, 12 figures, added appendices, published version
Details
- Database :
- arXiv
- Publication Type :
- Report
- Accession number :
- edsarx.2211.02661
- Document Type :
- Working Paper