2000 character limit reached
The cosmic trimmer: Black-hole hair in scalar-Gauss-Bonnet gravity is altered by cosmology (2403.15537v2)
Published 22 Mar 2024 in gr-qc and astro-ph.CO
Abstract: Static black holes in general relativity modified by a linear scalar coupling to the Gauss-Bonnet invariant always carry hair. We show that the same mechanism that creates the hair makes it incompatible with a cosmological horizon. Other scalar-tensor models do not have this problem when time dependence of the scalar provides a natural matching to cosmology. Scalar-Gauss-Bonnet gravity is particularly rigid, and such a scenario does not help. An extra operator makes the theory behave like the other models, and the cosmological horizon can be accommodated. The hair, however, is drastically altered.
- B. P. Abbott et al. (LIGO Scientific, Virgo), Phys. Rev. Lett. 116, 061102 (2016), arXiv:1602.03837 [gr-qc] .
- B. P. Abbott et al. (LIGO Scientific, Virgo), Phys. Rev. Lett. 119, 161101 (2017), arXiv:1710.05832 [gr-qc] .
- T. Damour and G. Esposito-Farese, Phys. Rev. Lett. 70, 2220 (1993).
- J. D. Bekenstein, Phys. Rev. D 51, R6608 (1995).
- L. Hui and A. Nicolis, Phys. Rev. Lett. 110, 241104 (2013), arXiv:1202.1296 [hep-th] .
- A. Lehébel, Compact astrophysical objects in modified gravity, Ph.D. thesis, Orsay (2018), arXiv:1810.04434 [gr-qc] .
- C. A. R. Herdeiro and E. Radu, Int. J. Mod. Phys. D 24, 1542014 (2015), arXiv:1504.08209 [gr-qc] .
- T. P. Sotiriou and S.-Y. Zhou, Phys. Rev. D 90, 124063 (2014), arXiv:1408.1698 [gr-qc] .
- A. Yale and T. Padmanabhan, Gen. Rel. Grav. 43, 1549 (2011), arXiv:1008.5154 [gr-qc] .
- D. Ayzenberg and N. Yunes, Phys. Rev. D 90, 044066 (2014), [Erratum: Phys.Rev.D 91, 069905 (2015)], arXiv:1405.2133 [gr-qc] .
- E. Babichev and G. Esposito-Farèse, Phys. Rev. D 87, 044032 (2013), arXiv:1212.1394 [gr-qc] .
Sponsor
Paper Prompts
Sign up for free to create and run prompts on this paper using GPT-5.
Top Community Prompts
Collections
Sign up for free to add this paper to one or more collections.