Multipole solutions in metric--affine gravity
  Above Planck energies, the spacetime might become non--Riemannian, as it is known fron string theory and inflation. Then geometries arise in which nonmetricity and torsion appear as field strengths, side by side with curvature. By gauging the affine group, a metric affine gauge theory emerges as dynamical framework. Here, by using the harmonic map ansatz, a new class of multipole like solutions in the metric affine gravity theory (MAG) is obtained. 
Jos\'e Socorro, Claus L\"ammerzahl, Alfredo Mac\'ias and Eckehard W.   Mielke