We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Compact stars described by a charged model.
- Authors
Estevez-Delgado, Joaquin; Soto-Espitia, Rafael; Cleary-Balderas, Arthur; Murguía, Aurelio Taméz
- Abstract
A charged stellar model is presented by constructing a solution to the Einstein–Maxwell equations system in a spherically symmetrical static time-space. The rate of compactness for the model depends on two parameters (w , α) , one of them α associated to the charge, which allows a value of compactness u ≤ 0. 5 2 0 7 2 1 7 8 6 higher than the neutral case. The density and pressure are regular functions, positive and monotonically decreasing and the function of charge is positive regular and monotonically increasing, its shown that the model satisfies the condition of causality, the geometry is regular and as such the model is physically acceptable. Although the model can be applicable for a variety of stars, considering a star with mass M = 1 M ⊙ for w = 0. 1 8 0 0 8 2 1 5 the range of compactness is u ∈ [ 0. 2 1 2 5 0 2 6 3 , 0. 2 5 9 2 2 4 0 8 ] and radius R ∈ [ 5. 7 4 0 2 , 6. 9 4 8 0 ] Km , in this case the range of values for the central density is [ 1. 6 6 8 1 9 , 3. 3 0 3 1 7 ] 1 0 1 8 Kg / cm 3 greater than the value of the nuclear density and consistent with that expected for stars with this compactness rate.
- Subjects
COMPACT objects (Astronomy); NUCLEAR density; STELLAR mass; RADIUS (Geometry); STARS; EINSTEIN-Maxwell equations
- Publication
International Journal of Modern Physics D: Gravitation, Astrophysics & Cosmology, 2020, Vol 29, Issue 3, pN.PAG
- ISSN
0218-2718
- Publication type
Article
- DOI
10.1142/S0218271820500224