First-post-Newtonian generation of gravitational waves in Einstein-Cartan theory

Understand

In this paper we investigate the gravitational-wave generation problem at the first post-Newtonian order in the context of Einstein-Cartan theory by exploiting the Blanchet-Damour formalism.

• The quantum intrinsic spin carried by slowly moving, weakly stressed, weakly self-gravitating sources is described geometrically by means of the torsion tensor.
• We obtain the expression of the source multipole moments with the required accuracy.
• The analysis of the physical meaning of the lowest-order non-radiative moments and of the asymptotic gravitational waveform is also performed.