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

Файлы
W3198668603.pdf(1.27 MB)
Дата
2021
Авторы
Das, S.
Ray, S.
Nandi, K. K.
Parida, B. K.
Khlopov, M.
Journal Title
Journal ISSN
Volume Title
Издатель
Научные группы
Организационные подразделения
OrgUnit Logo
Организационная единица
Институт ядерной физики и технологий
Цель ИЯФиТ и стратегия развития - создание и развитие научно-образовательного центра мирового уровня в области ядерной физики и технологий, радиационного материаловедения, физики элементарных частиц, астрофизики и космофизики.
Выпуск журнала
Аннотация
© 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.
Описание
Ключевые слова
Цитирование
Anisotropic 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
URI
https://www.doi.org/10.1016/j.aop.2021.168597
 https://www.scopus.com/record/display.uri?eid=2-s2.0-85115403572&origin=resultslist
 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000704987700002
 https://openrepository.mephi.ru/handle/123456789/24725
Коллекции
Публикации