The photon-neutrino interaction in non-commutative gauge field theory and astrophysical bounds

In this letter we propose a mechanism of left- and right-handed neutrino couplings to photons, which arises naturally in non-commutative gauge field theory. We estimate the predicted additional energy-loss in stars induced by space-time non-commutativity. The usual requirement that any new energy-loss mechanism in globular cluster stars must not significantly exceed the standard neutrino losses implies a scale of non-commutative gauge theory above the scale of weak interactions