Core-envelope anisotropic star model admitting Karmarkar condition
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Date
2024
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier BV
Abstract
We generate a neutral core-envelope stellar model with anisotropic fluid distribution which admits Karmarkar condition. The core and envelope layers are assumed to compose quark matter and neutron fluid consistent with linear and quadratic equations of state, respectively. The results obtained indicate that the present model conforms with physical and stability tests. In the present model we have generated radii and masses of astrophysical objects consistent with observations such as HerX-1, 4U 1538-52 and SAX J1808.4-3658. It is interesting to note that the study of multilayered stars in Karmarkar condition is missing in the stellar models generated in the past.
Description
Abstract. Full text available at https://doi.org/10.1016/j.newast.2023.102115
Keywords
Core envelope, anisotropic fluid, Karmarkar condition
Citation
Mathias, A. V., Sunzu, J. M., & Mkenyeleye, J. M. (2024). Core-envelope anisotropic star model admitting Karmarkar condition. New Astronomy, 106, 102115.