TY - JOUR
T1 - Slowly rotating dark energy stars
AU - Panotopoulos, Grigoris
AU - Rincón, Ángel
AU - Lopes, Ilídio
N1 - Funding Information:
We thank the anonymous reviewer for useful comments and suggestions. The authors G.P. and I.L. thank the Funda??o para a Ci?ncia e Tecnologia (FCT), Portugal, for the financial support to the Center for Astrophysics and Gravitation-CENTRA, Instituto Superior T?cnico, Universidade de Lisboa, through the Grants No. UID/FIS/00099/2013 and No. PTDC/FIS-AST/28920/2017. The author A.R. acknowledges Universidad de Tarapac? for financial support.
Funding Information:
We thank the anonymous reviewer for useful comments and suggestions. The authors G.P. and I.L. thank the Fundação para a Ciência e Tecnologia (FCT), Portugal , for the financial support to the Center for Astrophysics and Gravitation-CENTRA, Instituto Superior Técnico, Universidade de Lisboa, through the Grants No. UID/FIS/00099/2013 and No. PTDC/FIS-AST/28920/2017 . The author A.R. acknowledges Universidad de Tarapacá for financial support.
Publisher Copyright:
© 2021 Elsevier B.V.
PY - 2021/12
Y1 - 2021/12
N2 - We study isotropic and slowly-rotating stars made of dark energy adopting the extended Chaplygin equation-of-state. We compute the moment of inertia as a function of the mass of the stars, both for rotating and non-rotating objects. The solution for the non-diagonal metric component as a function of the radial coordinate for three different star masses is shown as well. We find that (i) the moment of inertia increases with the mass of the star, (ii) in the case of non-rotating objects the moment of inertia grows faster, and (iii) the curve corresponding to rotation lies below the one corresponding to non-rotating stars.
AB - We study isotropic and slowly-rotating stars made of dark energy adopting the extended Chaplygin equation-of-state. We compute the moment of inertia as a function of the mass of the stars, both for rotating and non-rotating objects. The solution for the non-diagonal metric component as a function of the radial coordinate for three different star masses is shown as well. We find that (i) the moment of inertia increases with the mass of the star, (ii) in the case of non-rotating objects the moment of inertia grows faster, and (iii) the curve corresponding to rotation lies below the one corresponding to non-rotating stars.
KW - Composition of astronomical objects
KW - Dark energy
KW - Relativistic stars
UR - http://www.scopus.com/inward/record.url?scp=85115622700&partnerID=8YFLogxK
U2 - 10.1016/j.dark.2021.100885
DO - 10.1016/j.dark.2021.100885
M3 - Article
AN - SCOPUS:85115622700
VL - 34
JO - Physics of the Dark Universe
JF - Physics of the Dark Universe
SN - 2212-6864
M1 - 100885
ER -