2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/186953Zee-type models with Majorons naturally incorporate the 17 keV neutrino but in their minimal version fail to simultaneously solve the solar neutrino puzzle. If there is a sterile neutrino state, we find a particularly simple solution to the solar neutrino problem, which besides $ν_{17}$ predicts a light Zeldovich-Konopinski-Mahmoud neutrino $ν_{light}=ν_e+ν_μ^c$ with a magnetic moment being easily as large as $10^{-11}μ_B$ through the Barr-Freire-Zee mechanism.11 pages, 2 figures (not included but available upon request), LaTex, IC/92/216, SISSA-141/92/EP, LMU-10/92High Energy Physics - Phenomenologytext