Constraints on astro-unparticle physics from SN 1987A

SN 1987A observations have been used to place constraints on the interactions between standard model particles and unparticles. In this study we calculate the energy loss from the supernovae core through scalar, pseudo-scalar, vector, and pseudo-vector unparticle emission from nuclear bremsstrahlung for degenerate nuclear matter interacting through one pion exchange. In order to examine the constraints on d(u) = 1 we considered the emission of scalars, pseudoscalars, vectors, pseudo-vectors and tensors through the pair annihilation process e(+) e(-)-> U gamma. In addition we have re-examined other pair annihilation processes. The most stringent bounds on the dimensionless coupling constants for d(u) = 1 and Lambda(u) = m(Z) are obtained from the nuclear bremsstrahlung process for the pseudo-scalar and pseudo-vector couplings vertical bar lambda(P)(0,1)vertical bar <= 4 x 10(-11), and for tensor interaction, the best limit on imensionless coupling is obtained from e(+) e(-)-> U gamma. and we get vertical bar lambda T vertical bar <= = 6 x 10(-6).