Kilonova Emission from Neutron Star Mergers with Different Equations of State

被引：0
|
作者：
WuZimo Qiumu [1 ]
MengHua Chen [2 ]
QiuHong Chen [1 ]
EnWei Liang [1 ]
机构：
[1] Guangxi Key Laboratory for Relativistic Astrophysics,School of Physical Science and Technology,Guangxi University
[2] Kavli Institute for Astronomy and Astrophysics,Peking
来源：
Research in Astronomy and Astrophysics | 2025年 / 25卷 / 03期
关键词：
D O I：
暂无
中图分类号：
P145.6 [脉冲星（中子星）];
学科分类号：
摘要：
A kilonova is an optical-infrared transient powered by the radioactive decay of heavy nuclei from a binary neutron star merger.Its observational characteristics depend on the mass and the nuclide composition of merger ejecta,which are sensitive to the equation of state (EoS) of the neutron star.We use astrophysical conditions derived from different EoSs as nucleosynthesis inputs to explore the impact of various EoS on the r-process nucleosynthesis and the kilonova emission.Our results show that both the abundance patterns of merger ejecta and kilonova light curves are strongly dependent on the neutron star EoSs.Given the mass of two neutron stars,the merger with a softer EoS tends to generate a larger amount of ejected material,and may lead to a brighter kilonova peak luminosity.The relationship between the neutron star EoS and the peak luminosity provides a probe for constraining the properties of EoS in multi-messenger observations of neutron star mergers.
引用
收藏
页码：41 / 47
页数：7
相关论文
共 50 条
  • [1] Kilonova Emission from Neutron Star Mergers with Different Equations of State
    Qiumu, Wu-Zimo
    Chen, Meng-Hua
    Chen, Qiu-Hong
    Liang, En-Wei
    RESEARCH IN ASTRONOMY AND ASTROPHYSICS, 2025, 25 (03)
  • [2] Simulations of Early Kilonova Emission from Neutron Star Mergers
    Banerjee, Smaranika
    Tanaka, Masaomi
    Kawaguchi, Kyohei
    Kato, Daiji
    Gaigalas, Gediminas
    ASTROPHYSICAL JOURNAL, 2020, 901 (01):
  • [3] Impact of jets on kilonova photometric and polarimetric emission from binary neutron star mergers
    Bennani, Hakim
    Chebak, Ahmed
    El Ouafi, Abderrazak
    ENERGIES, 2023, 16 (11)
  • [4] MODELS OF KILONOVA/MACRONOVA EMISSION FROM BLACK HOLE-NEUTRON STAR MERGERS
    Kawaguchi, Kyohei
    Kyutoku, Koutarou
    Shibata, Masaru
    Tanaka, Masaomi
    ASTROPHYSICAL JOURNAL, 2016, 825 (01):
  • [5] Impact of jets on kilonova photometric and polarimetric emission from binary neutron star mergers
    Shrestha, Manisha
    Bulla, Mattia
    Nativi, Lorenzo
    Markin, Ivan
    Rosswog, Stephan
    Dietrich, Tim
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2023, 523 (02) : 2990 - 3000
  • [6] Neutrinos in neutron star mergers: Nucleosynthesis and kilonova
    Perego, A.
    NUOVO CIMENTO C-COLLOQUIA AND COMMUNICATIONS IN PHYSICS, 2019, 42 (04):
  • [7] The impact of isomers on a kilonova associated with neutron star mergers
    Fujimoto, Shin-ichiro
    Hashimoto, Masa-aki
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2020, 493 (01) : L103 - L107
  • [8] Dynamical ejecta of neutron star mergers with nucleonic weak processes II: kilonova emission
    Just, O.
    Kullmann, I
    Goriely, S.
    Bauswein, A.
    Janka, H-T
    Collins, C. E.
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2022, 510 (02) : 2820 - +
  • [9] Kilonova Emission from Black Hole-Neutron Star Mergers: Observational Signatures of Anisotropic Mass Ejection
    Huang, Zhi-Qiu
    Liu, Liang-Duan
    Wang, Xiang-Yu
    Dai, Zi-Gao
    ASTROPHYSICAL JOURNAL, 2018, 867 (01):
  • [10] Kilonova emission from realistic neutron star merger simulations
    Collins, Christine E.
    Bauswein, Andreas
    Sim, Stuart A.
    Vijayan, Vimal
    Martinez-Pinedo, Gabriel
    Just, Oliver
    Shingles, Luke J.
    Kromer, Markus
    FAIR NEXT GENERATION SCIENTISTS - 7TH EDITION WORKSHOP, 2023,
12345