Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/28382
Registo completo
Campo DC | Valor | Idioma |
---|---|---|
dc.contributor.author | Brito, Irene | - |
dc.contributor.author | Silva, M. F. A. da | - |
dc.contributor.author | Mena, Filipe C. | - |
dc.contributor.author | Santos, N. O. | - |
dc.date.accessioned | 2014-03-17T16:16:01Z | - |
dc.date.available | 2014-03-17T16:16:01Z | - |
dc.date.issued | 2014-03 | - |
dc.identifier.issn | 0001-7701 | por |
dc.identifier.uri | https://hdl.handle.net/1822/28382 | - |
dc.description.abstract | We investigate the geodesics' kinematics and dynamics in the Linet-Tian metric with $\Lambda<0$ and compare with the results for the Levi-Civita metric, when $\Lambda=0$. This is used to derive new stability results about the geodesics' dynamics in static vacuum cylindrically symmetric spacetimes with respect to the introduction of $\Lambda<0$. In particular, we find that increasing $|\Lambda|$ always increases the minimum and maximum radial distances to the axis of any spatially confined planar null geodesic. Furthermore, we show that, in some cases, the inclusion of any $\Lambda<0$ breaks the geodesics' orbit confinement of the $\Lambda=0$ metric, for both planar and non-planar null geodesics, which are therefore unstable. Using the full system of geodesics' equations, we provide numerical examples which illustrate our results. | por |
dc.description.sponsorship | IB and FM thank CMAT, Univ. Minho, for support through the FEDER Funds-COMPETE and FCT Project Est-C/MAT/UI0013/2011. FM is also supported by FCT projects PTDC/MAT/108921/2008 and CERN/FP/123609/2011 and thanks the warm hospitality from Instituto de Fisica, UERJ, Rio de Janeiro, where this work was completed. MFAdaSilva acknowledges the financial support from FAPERJ (Nos. E-26/171.754/2000, E-26/171.533.2002, E-26/170.951/2006, E-26/110.432/2009 and E-26/111.714/2010), Conselho Nacional de Desenvolvimento Cientifico e Tecnologico-CNPq-Brazil (Nos. 450572/2009-9, 301973/2009-1 and 477268/2010-2) and Financiadora de Estudos e Projetos-FINEP-Brazil. | por |
dc.language.iso | eng | por |
dc.publisher | Springer | por |
dc.relation | PEst-C/MAT/UI0013/2011 | - |
dc.relation | info:eu-repo/grantAgreement/FCT/5876-PPCDTI/108921/PT | - |
dc.relation | info:eu-repo/grantAgreement/FCT/COMPETE/123609/PT | - |
dc.rights | restrictedAccess | por |
dc.subject | General Relativity | por |
dc.subject | Exact solutions | por |
dc.subject | Cylindrically symmetric spacetimes | por |
dc.subject | Geodesics | por |
dc.subject | Stability | por |
dc.title | Geodesics dynamics in the Linet–Tian spacetime with $\Lambda <0$ | por |
dc.type | article | por |
dc.peerreviewed | yes | por |
dc.relation.publisherversion | The original publication is available at: http://link.springer.com/article/10.1007%2Fs10714-014-1681-7 | por |
sdum.publicationstatus | published | por |
oaire.citationStartPage | 1 | por |
oaire.citationEndPage | 25 | por |
oaire.citationIssue | 3 | por |
oaire.citationTitle | General relativity and gravitation | por |
oaire.citationVolume | 46 | por |
dc.identifier.eissn | 1572-9532 | - |
dc.identifier.doi | 10.1007/s10714-014-1681-7 | por |
dc.subject.wos | Science & Technology | por |
sdum.journal | General relativity and gravitation | por |
Aparece nas coleções: | CMAT - Artigos em revistas com arbitragem / Papers in peer review journals |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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LTgeode-submit-to-GRG-jan-2014.pdf Acesso restrito! | LTgeodesics | 644,98 kB | Adobe PDF | Ver/Abrir |