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Physical Review D 81 (2010) 044009
Spherically symmetric solutions in modified Horava-Lifshitz gravity
E. Kiritsis1, 2
(2010)

We find spherically symmetric solutions in the modified Hořava-Lifshitz gravity proposed recently by Blas, Pujolas and Sibiryakov. The non-linear equations of the two derivative action turn out to be similar to those stemming from the four-derivative action explored recently. We analyze the solutions and derive constraints on the relevant new coupling constant. We also analyze the case where the cosmological constant is non-zero. We derive the large distance expansion of solutions and show that the power of the standard Newton's law is modified in the presence of a cosmological constant.
1 :  Physics Department
2 :  APC - UMR 7164 - AstroParticule et Cosmologie
APC - THEORIE
Physique/Physique des Hautes Energies - Théorie
Lien vers le texte intégral : 
http://fr.arXiv.org/abs/0911.3164