Constraining the Schwarzschild-de Sitter solution in models of modified gravity

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• 作者：Lorenzo Iorio^a ; ^{lorenzo.iorio@libero.it" class="auth_mail" title="E-mail the corresponding author} ; Matteo Luca Ruggiero^b ; ^c ; ^d ; ^{matteo.ruggiero@polito.it" class="auth_mail" title="E-mail the corresponding author} ; Ninfa Radicella^e ; ^f ; ^{ninfa.radicella@sa.infn.it" class="auth_mail" title="E-mail the corresponding author} ; Emmanuel N. Saridakis^g ; ^h ; ^{Emmanuel_Saridakis@baylor.edu" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Experimental studies of gravity ; Modified gravity ; Dark energy ; Lunar ; planetary ; and deep-space probes
• 刊名：Physics of the Dark Universe
• 出版年：2016
• 出版时间：September 2016
• 年：2016
• 卷：13
• 期：Complete
• 页码：111-120
• 全文大小：626 K

文摘

The Schwarzschild–de Sitter (SdS) solution exists in the large majority of modified gravity theories, as expected, and in particular the effective cosmological constant is determined by the specific parameters of the given theory. We explore the possibility to use future extended radio-tracking data from the currently ongoing New Horizons mission in the outskirts peripheries of the Solar System, at about 40 au, in order to constrain this effective cosmological constant, and thus to impose constrain on each scenario’s parameters. We investigate some of the recently most studied modified gravities, namely class="mathmlsrc">class="formulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S2212686416300292&_mathId=si9.gif&_user=111111111&_pii=S2212686416300292&_rdoc=1&_issn=22126864&md5=d588a9b9686c1d1f7da81d26cfd48af0" title="Click to view the MathML source">f(R)class="mathContainer hidden">class="mathCode">$f\left(R\right)$ and class="mathmlsrc">class="formulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S2212686416300292&_mathId=si10.gif&_user=111111111&_pii=S2212686416300292&_rdoc=1&_issn=22126864&md5=bfb628d679cbd29f3ab6dc1d129a4ceb" title="Click to view the MathML source">f(T)class="mathContainer hidden">class="mathCode">$f\left(T\right)$ theories, dRGT massive gravity, and Hořava–Lifshitz gravity, and we show that New Horizons mission may bring an improvement of one-two orders of magnitude with respect to the present bounds from planetary orbital dynamics.