Radio and x-ray signatures of merging neutron stars

By Brad M. S. Hansen, Max Planck Institute for Astrophysics, P. University.. 2000

191 citations recorded by the source corpus.

We describe the possible electromagnetic signals expected from the magnetospheric interactions of a neutron star binary prior to merger. We find that both radio and X-ray signals of detectable strength are possible. We discuss possible links with the phenomenon of gamma-ray bursts (GRBs) and describe the prospects for direct detection of these signals in searches for radio and X-ray transients.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/e67a48e1096d411642bdf88380acc18de3a173c5

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In Astronomy and Astrophysics

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Citations in the corpus

• Short-Duration Gamma-Ray Bursts (2013, background): “In addition, precursors in short GRBs may be produced by other mechanisms, for example magnetospheric interaction between the compact objects (Hansen & Lyutikov 2001) or resonant shattering of the neutron star crusts (Tsang et al. 2012) prior to the merger.”
• SYSTEMATICS OF DYNAMICAL MASS EJECTION, NUCLEOSYNTHESIS, AND RADIOACTIVELY POWERED ELECTROMAGNETIC SIGNALS FROM NEUTRON-STAR MERGERS (2013, background): “…magnetospheric interactions, relativistic matter outflows, or NS crust phenomena (Lipunov & Panchenko 1996; Vietri 1996; Li & Paczyński 1998; Hansen & Lyutikov 2001; Troja et al. 2010; Shibata et al. 2011; Nakar & Piran 2011; Tsang et al. 2012; Kyutoku et al. 2012; Zhang 2013; Gao et al.…”
• Science with ASKAP (2008, background): “Possibilities include the explosions of primordial black holes [213], and emission from merging neutron stars [122] and magnetars [180].”
• THE GALACTIC POSITION DEPENDENCE OF FAST RADIO BURSTS AND THE DISCOVERY OF FRB011025 (2014, background): “Such events have previously been theorized to arise from a number of cataclysmic astrophysical events such as black hole evaporation (Rees 1977) and neutron star coalescence (Li & Paczyński 1998; Hansen & Lyutikov 2001).”
• Fast Radio Bursts from Magnetars Born in Binary Neutron Star Mergers and Accretion Induced Collapse (2019, background): “It was proposed that during the final stages of a BNS merger inspiral the interaction between the NS magnetospheres could give rise to a single (non-repeating) FRB (Hansen & Lyutikov 2001; Totani 2013; Zhang 2014; Metzger & Zivancev 2016; Wang et al. 2016).”
• WHAT IS THE MOST PROMISING ELECTROMAGNETIC COUNTERPART OF A NEUTRON STAR BINARY MERGER? (2011, methodology): “…as in the case of SGRBs. 6 Predicted EM counterparts that may instead precede the GW signal include emission powered by the magnetosphere of the NS (e.g. Hansen & Lyutikov 2001; McWilliams & Levin 2011), or cracking of the NS crust due to tidal interactions (e.g. Troja et al. 2010), during the…”
• On the origin of a highly dispersed coherent radio burst (2012, background): “Hansen & Lyutikov (2001) consider such a binary, on the verge of merging due to the emission of gravitational waves, where the longer period star has a magnetic field of ∼ 1015 G and a period of & 10 s.”
• IDENTIFYING ELUSIVE ELECTROMAGNETIC COUNTERPARTS TO GRAVITATIONAL WAVE MERGERS: AN END-TO-END SIMULATION (2012, background): “…& Frail 2012), ii). we could observe a coherent radio burst emitted from a magnetically-driven, relativistic plasma outflow prior to the NS merger (Hansen & Lyutikov 2001; Pshirkov & Postnov 2010), and iii). recent work suggests incoherent radio signatures from blast waves produced by the…”
• Cosmological Fast Radio Bursts from Binary Neutron Star Mergers (2013, background): “Hansen & Lyutikov (2001) and Lyutikov (2013) considered pre-merger coherent emission from interacting magnetosphere of a binary consisting of a recycled, weak magnetic field neutron star and a slowly rotating, strong field one, before their rotations are synchronized tothe binary period (see also…”
• Science with the Murchison Widefield Array (2012, background): “Models by Hansen & Lyutikov (2001) and Benz & Paesold (1998) also predict detectable emission, depending on the plasma environment and dynamics of the GRB.”
• Five new fast radio bursts from the HTRU high-latitude survey at Parkes: First evidence for two-component bursts (2015, background): “…holes (Rees 1977), hyperflares from soft gamma-ray repeaters (Popov & Postnov 2007), merging white dwarfs (Kashiyama et al. 2013) or neutron stars (Hansen & Lyutikov 2001), collapsing supra-massive stars (Falcke & Rezzolla 2014), supergiant pulses from pulsars (Cordes & Wasserman 2015), Alfvén…”
• FAST RADIO BURSTS FROM THE INSPIRAL OF DOUBLE NEUTRON STARS (2016, methodology): “In addition, our work is different from Hansen & Lyutikov (2001).”
• Probing the cosmic reionization history and local environment of gamma‐ray bursts through radio dispersion (2003, background): “Very different types of emission from a variety of physical processes have been suggested (e.g. Benz & Paesold 1998, Usov & Katz 2000, Hansen & Lyutikov 2001, Sagiv & Waxman 2002).”