Effects of onset of phase transition on binary neutron star mergers

被引:3
作者
Haque, Shamim [1 ]
Mallick, Ritam [1 ]
Thakur, Shashikesh K. [1 ]
机构
[1] Indian Inst Sci Educ & Res Bhopal, Dept Phys, Bhopal 462066, India
关键词
dense matter; equation of state; gravitational waves; hydrodynamics; methods: numerical; neutron star mergers; EQUATION-OF-STATE; GRAVITATIONAL-WAVE SIGNAL; HYBRID EQUATION; QUARK MATTER; THRESHOLD MASS; HIGH-DENSITIES; BLACK-HOLE; CONSTRAINTS; POSTMERGER; SIGNATURES;
D O I
10.1093/mnras/stad3839
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Quantum Chromodynamics predicts phase transition from hadronic matter to quark matter at high density, which is highly probable in astrophysical systems like binary neutron star mergers. To explore the critical density where such phase transition can occur, we performed numerical relativity simulations of binary neutron star mergers with various masses (equal and unequal binaries). We aim to understand the effect of the onset of phase transition on the merger dynamics and gravitational wave spectra. We generated a set of equations of states by agnostically changing the onset of phase transition, having the hadronic matter part and quark matter part fixed. This particular arrangement of the equation of states explores the scenario of mergers where mixed phases of matter are achieved before or during the merger. Under these circumstances, if the matter properties with hadronic and quark degrees differ significantly, it is reflected in the stability of the final merger product for the intermediate mass binary. We performed a case study on mixed species merger, where one of the binary companions is hybrid star. If quark matter appears at low densities, we observe significant change in post-merger gravitational wave analysis in terms of higher peak frequencies and post-merger frequencies in power spectral density. We report indications expressed as spikes in phase difference plots at merger time for mixed mergers. We found that the expression of phase transition in post-merger gravitational wave signals is more significant for unequal mass binary than for equal mass binary having the same total baryonic mass.
引用
收藏
页码:11575 / 11586
页数:12
相关论文
共 140 条
  • [51] Refined Mass and Geometric Measurements of the High-mass PSR J0740+6620
    Fonseca, E.
    Cromartie, H. T.
    Pennucci, T. T.
    Ray, P. S.
    Kirichenko, A. Yu
    Ransom, S. M.
    Demorest, P. B.
    Stairs, I. H.
    Arzoumanian, Z.
    Guillemot, L.
    Parthasarathy, A.
    Kerr, M.
    Cognard, I
    Baker, P. T.
    Blumer, H.
    Brook, P. R.
    DeCesar, M.
    Dolch, T.
    Dong, F. A.
    Ferrara, E. C.
    Fiore, W.
    Garver-Daniels, N.
    Good, D. C.
    Jennings, R.
    Jones, M. L.
    Kaspi, V. M.
    Lam, M. T.
    Lorimer, D. R.
    Luo, J.
    McEwen, A.
    McKee, J. W.
    McLaughlin, M. A.
    McMann, N.
    Meyers, B. W.
    Naidu, A.
    Ng, C.
    Nice, D. J.
    Pol, N.
    Radovan, H. A.
    Shapiro-Albert, B.
    Tan, C. M.
    Tendulkar, S. P.
    Swiggum, J. K.
    Wahl, H. M.
    Zhu, W. W.
    [J]. ASTROPHYSICAL JOURNAL LETTERS, 2021, 915 (01)
  • [52] Monte-Carlo Neutrino Transport in Neutron Star Merger Simulations
    Foucart, Francois
    Duez, Matthew D.
    Hebert, Francois
    Kidder, Lawrence E.
    Pfeiffer, Harald P.
    Scheel, Mark A.
    [J]. ASTROPHYSICAL JOURNAL LETTERS, 2020, 902 (01)
  • [53] Monte Carlo closure for moment-based transport schemes in general relativistic radiation hydrodynamic simulations
    Foucart, Francois
    [J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2018, 475 (03) : 4186 - 4207
  • [54] Gravitational Wave Signal for Quark Matter with Realistic Phase Transition
    Fujimoto, Yuki
    Fukushima, Kenji
    Hotokezaka, Kenta
    Kyutoku, Koutarou
    [J]. PHYSICAL REVIEW LETTERS, 2023, 130 (09)
  • [55] Accurate evolutions of inspiralling and magnetized neutron stars: Equal-mass binaries
    Giacomazzo, Bruno
    Rezzolla, Luciano
    Baiotti, Luca
    [J]. PHYSICAL REVIEW D, 2011, 83 (04):
  • [56] Simulating Binary Neutron Stars with Hybrid Equation of States: Gravitational Waves, Electromagnetic Signatures and Challenges for Numerical Relativity
    Gieg, Henrique
    Dietrich, Tim
    Ujevic, Maximiliano
    [J]. PARTICLES, 2019, 2 (03) : 365 - 384
  • [57] Glendenning N., 1996, Compact Stars. Nuclear Physics, Particle Physics and General Relativity, DOI [10.1007/978-1-4684-0491-3, DOI 10.1007/978-1-4684-0491-3]
  • [58] 1ST-ORDER PHASE-TRANSITIONS WITH MORE THAN ONE CONSERVED CHARGE - CONSEQUENCES FOR NEUTRON-STARS
    GLENDENNING, NK
    [J]. PHYSICAL REVIEW D, 1992, 46 (04): : 1274 - 1287
  • [59] SPIN-S SPHERICAL HARMONICS AND EDTH
    GOLDBERG, JN
    MACFARLA.AJ
    NEWMAN, ET
    ROHRLICH, F
    SUDARSHA.CG
    [J]. JOURNAL OF MATHEMATICAL PHYSICS, 1967, 8 (11) : 2155 - &
  • [60] Gourgoulhon E, 2001, PHYS REV D, V63, DOI 10.1103/PhysRevD.63.064029