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A. Sulaksono
Departemen Fisika FMIPA UI, Kampus UI Depok, 16424
Electrical & Electronics Engineering Energy Physics Other

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EFEK MESON σ* PADA PERSAMAAN KEADAAN BINTANG NEUTRON Alrizal Alrizal; A. Sulaksono
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 5 (2016): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2016
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1046.526 KB) | DOI: 10.21009/0305020501

Abstract

The existence of hyperon in neutron stars has been studied by relativistic mean field model. By assuming the hyperon in a neutron star will affect the equation of state and properties of neutron star. In this study, we will discuss how meson coupling constant variation affecting the equation of state of neutron stars by using relativistic mean field model and GM1 parameter which later will be compared with BSP parameter. It can be seen that by varying the coupling constants affecting the equation of state of neutron stars. Keywords : Neutron star, Hyperon, meson, Equation of state.
PENGARUH TEKANAN ANISOTROPIK PADA BINTANG NEUTRON A. M. Setiawan; A. Sulaksono
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 5 (2016): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2016
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (622.398 KB) | DOI: 10.21009/0305020503

Abstract

We investigate the anisotropic factor σ of neutron stars based on the Doneva-Yazadjiev (DY), Herrera-Barreto (HB), and Bowers-Liang (BL) anisotropic models. We assume that the neutron stars matter consist of nucleons, leptons, and hyperons. We obtain that the corresponding models predict neutron stars maximum mass consistent with PSR J1614-2230 and PSR J0348+0432. Keywords: Hyperon, Neutron Stars, and Anisotropic Pressure.
Co-Authors A. M. Setiawan Alrizal Alrizal