Radial Oscillations of Quark Stars Admixed with Dark Matter

Author(s)

Jimenez, Jose C. ^[1] ; Fraga, Eduardo S. ^[2]

Affiliation

^[1] Univ Sao Paulo, Inst Fis, BR-05508090 Sao Paulo - Brazil

^[2] Univ Fed Rio de Janeiro, Inst Fis, BR-21941972 Rio De Janeiro - Brazil

• Document type: Journal article
• Source: UNIVERSE; v. 8, n. 1 JAN 2022.
• Web of Science Citations: 0

Abstract

We investigated compact stars consisting of cold quark matter and fermionic dark matter treated as two admixed fluids. We computed the stellar structures and fundamental radial oscillation frequencies of different masses of the dark fermion in the cases of weak and strong self-interacting dark matter. We found that the fundamental frequency can be dramatically modified and, in some cases, stable dark strange planets and dark strangelets with very low masses and radii can be formed. (AU)

• FAPESP's process: 18/24720-6 - Exploring the QCD phase diagram
• Grantee: Frédérique Marie Brigitte Sylvie Grassi
• Support Opportunities: Research Projects - Thematic Grants
• FAPESP's process: 20/07791-7 - Hydrodynamics for the Beam Energy Scan: 3+1 viscous hydrodynamics with baryon diffusion
• Grantee: José Carlos Jiménez Apaza
• Support Opportunities: Scholarships in Brazil - Post-Doctoral