TY - JOUR

T1 - Impact of Non-linear Boson Self-interaction on Dark Stars Properties

AU - Rahmansyah, A.

AU - Sulaksono, A.

N1 - Funding Information:
We study the properties of dark stars using non-linear boson self-interaction models using |φ|4, cosh-Gordon and Liouville bosonic self-interaction potential models. Bosonic dark particle mass is set to be 300 MeV and 400 MeV.The corresponding potentials have the same stiffness behavior at low densities but relative difference at high densities. Coupling constants on the corresponding self-interaction potentials are determined by the result of numerical simulations CCDM which requires ratio total cross-section to dark particle mass in the range of 0.1gcm2 ≤ Mσ ≤ 1gcm2. We have found that the stiffness difference at high densities are manifested in radii and moment of inertia of large masses dark star, tidal deformation at large masses. While the effect of mass of dark particle appears in maximum mass of dark stars. ACKNOWLEDGMENT We are partially supported by the UI’s PITTA grant No. 2231/UN2.R3.1/HKP.05.00/2018.
Publisher Copyright:
© Published under licence by IOP Publishing Ltd.

PY - 2019/10/30

Y1 - 2019/10/30

N2 - We study the properties of dark stars using non-linear boson self-interaction models. These stars are compact objects formed from bosonic dark matter. We focus on the properties of dark stars such as the mass and radius relation, tidal deformation, and moment of inertia. In this work, bosonic dark particle mass is set to be 300 MeV and 400 MeV. The bosonic self-interaction potential models are |φ|4, cosh-Gordon and Liouville which have the same behavior at low densities but relative difference at high densities. Coupling constants on the corresponding self-interaction potentials are determined by the result of numerical simulations CCDM which requires ratio total cross-section to dark particle mass in the range of .

AB - We study the properties of dark stars using non-linear boson self-interaction models. These stars are compact objects formed from bosonic dark matter. We focus on the properties of dark stars such as the mass and radius relation, tidal deformation, and moment of inertia. In this work, bosonic dark particle mass is set to be 300 MeV and 400 MeV. The bosonic self-interaction potential models are |φ|4, cosh-Gordon and Liouville which have the same behavior at low densities but relative difference at high densities. Coupling constants on the corresponding self-interaction potentials are determined by the result of numerical simulations CCDM which requires ratio total cross-section to dark particle mass in the range of .

UR - http://www.scopus.com/inward/record.url?scp=85076220839&partnerID=8YFLogxK

U2 - 10.1088/1742-6596/1354/1/012009

DO - 10.1088/1742-6596/1354/1/012009

M3 - Conference article

AN - SCOPUS:85076220839

VL - 1354

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

SN - 1742-6588

IS - 1

M1 - 012009

T2 - Conference on Theoretical Physics and Nonlinear Phenomena 2018, CTPNP 2018

Y2 - 2 July 2018 through 3 July 2018

ER -