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From Microscopic to Macroscopic: The Effect of Relativistic Mean Field Parameter Sets on Neutron Star Structure

Jurnal Fisika · Vol. 16 No. 2 (2026) · hlm. 128–140

DOI
10.15294/jf.v16i2.47273
ISSN
2684-978X, 2088-1509
Terbit
2026-10-11
Penerbit
Universitas Negeri Semarang
Bahasa
eng

Abstrak

Neutron stars, as extremely compact astrophysical objects, provide a unique natural laboratory for investigating the physics of compact matter. Neutron stars can be described from two complementary perspectives, namely microscopic and macroscopic states. The microscopic state is characterized through the relativistic mean-field (RMF) equation of state, which describes the dynamics of dense matter inside the star. The macroscopic state, on the other hand, is described by the Tolman–Oppenheimer–Volkoff (TOV) equations, which determine the global stellar structure. This study aims to examine how the microscopic properties of neutron stars influence their macroscopic behavior by varying the microscopic coupling constants encoded in different RMF parameter sets. The parameter sets employed in this work are taken from well-established and widely validated RMF models in the literature, including NL3, FSUGold, S271, and Z271. Through numerical modeling, the effects of variations in these parameter sets on the maximum mass, radius, energy density, and pressure of neutron stars are systematically investigated. The results demonstrate that the choice of parameter set has a significant impact on the maximum mass that a neutron star can support. In particular, stiffer parameter sets lead to larger maximum masses, whereas softer parameter sets result in smaller maximum masses.

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  • Universitas Jambi
  • Pusat Vulkanologi dan Mitigasi Bencana Geologi
  • Universitas Airlangga
  • Afiliasi tidak diketahui
  • Organisasi berbeda
  • Organisasi sama
  • Afiliasi tidak diketahui
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Tampilkan sebagai tabel
Rekan penulisOrganisasiArtikel bersama
Muhammad Ficky AfriantoUniversitas Jambi7
Mardian PeslinofUniversitas Jambi6
Benedika Ferdian HutabaratUniversitas Jambi3
Samsidar SamsidarUniversitas Jambi3
Linda HandayaniUniversitas Jambi3
Jesi PebraliaUniversitas Jambi3
Rista Mutia AnggrainiUniversitas Jambi2
RustanAfiliasi tidak diketahui2
Frastica DeswardaniUniversitas Jambi2
Jesi PebraliaUniversitas Jambi2
Alrizal AlrizalUniversitas Jambi2
Nova SusantiUniversitas Jambi1
Rabiah Al AdawiyahUniversitas Jambi1
Febri Berthalita PujaningsihUniversitas Jambi1
Athanasius CiptaPusat Vulkanologi dan Mitigasi Bencana Geologi1
Sherli YurinandaUniversitas Jambi1
. SamsidarAfiliasi tidak diketahui1
NurhidayahAfiliasi tidak diketahui1
Mardian PeslinofAfiliasi tidak diketahui1
Faizar FaridUniversitas Jambi1
samsidarAfiliasi tidak diketahui1
Nurhidayah NurhidayahUniversitas Jambi1
Rustan RustanUniversitas Jambi1
Regita KharismaUniversitas Jambi1
Tika RestianingsihUniversitas Jambi1
Roedearni Ananda Putri PurbaAfiliasi tidak diketahui1
Debby Mustika RaniUniversitas Jambi1
Sri PurwaningsihUniversitas Airlangga1
Amelia NoverantyAfiliasi tidak diketahui1
Surya DharmaAfiliasi tidak diketahui1
Jihan Suci AnandaUniversitas Jambi1
Cindy Nur SyaqilaUniversitas Jambi1
Adelia LatifahUniversitas Jambi1
Maison MaisonUniversitas Jambi1
Ermadani ErmadaniUniversitas Jambi1

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Sumber metadata: OAI-PMH (metadata jurnal) https://journal.unnes.ac.id/journals/jf/oai, pertama di-harvest 6 Nov 2026, terakhir terlihat 8 Nov 2026.
Metadata asli (oai_dc) 
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	<dc:title xml:lang="en">From Microscopic to Macroscopic: The Effect of Relativistic Mean Field Parameter Sets on Neutron Star Structure</dc:title>
	<dc:creator xml:lang="en">Alrizal, Alrizal</dc:creator>
	<dc:creator xml:lang="en">Fendriani, Yoza</dc:creator>
	<dc:creator xml:lang="en">Afrianto, M. Ficky </dc:creator>
	<dc:creator xml:lang="en">Pebralia, Jesi</dc:creator>
	<dc:creator xml:lang="en">Tane, Fairuz Athaya zahran Tane</dc:creator>
	<dc:subject xml:lang="en">Neutron Star</dc:subject>
	<dc:subject xml:lang="en">Equation of State</dc:subject>
	<dc:subject xml:lang="en"> Relativistic Mean Field.</dc:subject>
	<dc:description xml:lang="en">Neutron stars, as extremely compact astrophysical objects, provide a unique natural laboratory for investigating the physics of compact matter. Neutron stars can be described from two complementary perspectives, namely microscopic and macroscopic states. The microscopic state is characterized through the relativistic mean-field (RMF) equation of state, which describes the dynamics of dense matter inside the star. The macroscopic state, on the other hand, is described by the Tolman–Oppenheimer–Volkoff (TOV) equations, which determine the global stellar structure. This study aims to examine how the microscopic properties of neutron stars influence their macroscopic behavior by varying the microscopic coupling constants encoded in different RMF parameter sets. The parameter sets employed in this work are taken from well-established and widely validated RMF models in the literature, including NL3, FSUGold, S271, and Z271. Through numerical modeling, the effects of variations in these parameter sets on the maximum mass, radius, energy density, and pressure of neutron stars are systematically investigated. The results demonstrate that the choice of parameter set has a significant impact on the maximum mass that a neutron star can support. In particular, stiffer parameter sets lead to larger maximum masses, whereas softer parameter sets result in smaller maximum masses.</dc:description>
	<dc:publisher xml:lang="en">Universitas Negeri Semarang</dc:publisher>
	<dc:date>2026-10-11</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:type xml:lang="en">Peer-reviewed Article</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://journal.unnes.ac.id/journals/jf/article/view/47273</dc:identifier>
	<dc:identifier>10.15294/jf.v16i2.47273</dc:identifier>
	<dc:source xml:lang="en">Jurnal Fisika; Vol. 16 No. 2 (2026): Jurnal Fisika 16 (2) 2026; 128-140</dc:source>
	<dc:source>2684-978X</dc:source>
	<dc:source>2088-1509</dc:source>
	<dc:source>10.15294/jf.v16i2</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://journal.unnes.ac.id/journals/jf/article/view/47273/11690</dc:relation>
	<dc:rights xml:lang="en">Copyright (c) 2026 Jurnal Fisika</dc:rights>
</oai_dc:dc>