We examine static spherically symmetric polytropic spheres in Palatini f(R) gravity and show that no regular solutions to the field equations exist for physically relevant cases such as a monatomic isentropic gas or a degenerate electron gas, thus casting doubt on the validity of Palatini f(R) gravity as an alternative to General Relativity.

Polytropic spheres in Palatini f(R) gravity / Barausse, E.; Sotiriou, T. P.; Miller, J. C.. - 30(2008), pp. 189-192. ((Intervento presentato al convegno Spanish relativity meeting = Encuentros relativistas españoles : ERE2007 : Relativistic astrophysics and cosmology : Puerto de la Cruz, Tenerife, Spain, September 10-14, 2007 tenutosi a Inst Astrofis Canarias, Tenerife, SPAIN nel SEP 10-14, 2007 [10.1051/eas:0830023].

Polytropic spheres in Palatini f(R) gravity

Barausse, E.;
2008

Abstract

We examine static spherically symmetric polytropic spheres in Palatini f(R) gravity and show that no regular solutions to the field equations exist for physically relevant cases such as a monatomic isentropic gas or a degenerate electron gas, thus casting doubt on the validity of Palatini f(R) gravity as an alternative to General Relativity.
Spanish relativity meeting, ERE2007: relativistic astrophysics and cosmology
30
189
192
978-2-7598-0062-9
2-7598-0062-8
https://www.eas-journal.org/articles/eas/abs/2008/03/eas0830023/eas0830023.html
https://arxiv.org/abs/0801.4852
EDP Sciences
Barausse, E.; Sotiriou, T. P.; Miller, J. C.
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/20.500.11767/89649
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 25
  • ???jsp.display-item.citation.isi??? 23
social impact