Quadrupole Moments of Rapidly Rotating Compact Objects in Dilatonic Einstein-Gauss-Bonnet Theory

Burkhard Kleihaus; Jutta Kunz; Sindy Mojica (Oldenburg; U.)

arxiv: 1407.6884 · v1 · pith:2XE6OSVFnew · submitted 2014-07-25 · 🌀 gr-qc

Quadrupole Moments of Rapidly Rotating Compact Objects in Dilatonic Einstein-Gauss-Bonnet Theory

Burkhard Kleihaus , Jutta Kunz , Sindy Mojica (Oldenburg , U.) This is my paper

classification 🌀 gr-qc

keywords quadrupoleegbdmomenttheoryblackdilatoniceinstein-gauss-bonnetholes

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We consider rapidly rotating black holes and neutron stars in dilatonic Einstein-Gauss-Bonnet (EGBd) theory and determine their quadrupole moments, which receive a contribution from the dilaton. The quadrupole moment of EGBd black holes can be considerably larger than the Kerr value. For neutron stars, the universality property of the $\hat I$-$\hat Q$ relation between the scaled moment of inertia and the scaled quadrupole moment appears to extend to EGBd theory.

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