Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aspc..352..253k&link_type=abstract
New Horizons in Astronomy: Frank N. Bash Symposium ASP Conference Series, Vol. 352, Proceedings of the Conference Held 16-18 Oct
Astronomy and Astrophysics
Astronomy
2
Scientific paper
Axions are theoretical particles that provide an elegant solution to the strong CP problem in the Standard Model of particle physics. In addition, they are potential dark matter candidates. The problem is that the theory of axions does not really constrain their mass, and axions can only account for dark matter if they have the right mass. Several searches are underway that try to find axions and/or constrain their mass. With pulsating white dwarfs, we can place a solid upper limit on the mass of DFSZ axions (a model for axions that interact with electrons, tep{dfsz}). We present how this can be done and how it can be improved. We then try to see if we can draw any conclusion about axions as dark matter candidates by looking at the different cosmological models of their formation in the early universe.
Kim Alex
Montgomery Michael H.
Winget Don E.
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