PT Journal
AU Jimenez, R
   Pena-Garay, C
   Verde, L
TI Is it possible to explore Peccei-Quinn axions from frequency-dependence radiation dimming?
SO Physics Letters B
JI Phys. Lett. B
PY 2011
BP 232
EP 236
VL 703
IS 3
DI 10.1016/j.physletb.2011.08.019
LA English
DE Axion; CF; White dwarf
AB We explore how the Peccei-Quinn (PQ) axion parameter space can be constrained by the frequency-dependence dimming of radiation from astrophysical objects. To do so we perform accurate calculations of photon-axion conversion in the presence of a variable magnetic field. We propose several tests where the PQ axion parameter space can be explored with current and future astronomical surveys: the observed spectra of isolated neutron stars, occultations of background objects by white dwarfs and neutron stars, the light-curves of eclipsing binaries containing a white dwarf. We find that the lack of dimming of the light-curve of a detached eclipsing white dwarf binary recently observed, leads to relevant constraints on the photon-axion conversion. Current surveys designed for Earth-like planet searches are well matched to strengthen and improve the constraints on the PQ axion using astrophysical objects radiation dimming.
ER