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Anisotropic compact stars: Constraining model parameters to account for physical features of tidal Love numbers

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dc.contributor.authorDas, S.
dc.contributor.authorRay, S.
dc.contributor.authorNandi, K. K.
dc.contributor.authorParida, B. K.
dc.contributor.authorKhlopov, M.
dc.contributor.authorХлопов, Максим Юрьевич
dc.date.accessioned2024-11-29T20:42:23Z
dc.date.available2024-11-29T20:42:23Z
dc.date.issued2021
dc.description.abstract© 2021 Elsevier Inc.In this paper, we develop a new class of models for a compact star with anisotropic stresses inside the matter distribution. By assuming a linear equation of state for the anisotropic matter composition of the star we solve the Einstein field equations. In our approach, for the interior solutions we use a particular form of the an satz for the metric function grr. The exterior solution is assumed as the Schwarzschild metric and is joined with the interior metric obtained across the boundary of the star. These matching of the metrices along with the condition of the vanishing radial pressure at the boundary lead us to determine the model parameters. The physical acceptability of the solutions has verified by making use of the current estimated data available from the pulsar 4U1608−52. Thereafter, assuming anisotropy due to tidal effects we calculate the Love numbers from our model and compare the results with the observed compact stars, viz. KS1731−260, 4U1608−52, 4U1724−207, 4U1820−30, SAXJ1748.9−2021 and EXO1745−268. The overall situation confirms physical viability of the proposed approach, which can shed new light on the interior of the compact relativistic objects.
dc.identifier.citationAnisotropic compact stars: Constraining model parameters to account for physical features of tidal Love numbers / Das, S. [et al.] // Annals of Physics. - 2021. - 433. - 10.1016/j.aop.2021.168597
dc.identifier.doi10.1016/j.aop.2021.168597
dc.identifier.urihttps://www.doi.org/10.1016/j.aop.2021.168597
dc.identifier.urihttps://www.scopus.com/record/display.uri?eid=2-s2.0-85115403572&origin=resultslist
dc.identifier.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000704987700002
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/24725
dc.relation.ispartofAnnals of Physics
dc.titleAnisotropic compact stars: Constraining model parameters to account for physical features of tidal Love numbers
dc.typeArticle
dspace.entity.typePublication
oaire.citation.volume433
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