Search for Neutron Star Binaries in the Local Group Galaxies Using LISA

Abstract

We discuss the prospects of LISA for detecting neutron star binaries (NSBs) in the local group galaxies such as LMC and M31. Using the recently estimated merger rate $1540\mathrm{Gp}{\mathrm{c}}^{-3}\mathrm{y}{\mathrm{r}}^{-1}$ and inversely applying the conventional arguments based on the $B$-band galaxy luminosities, we estimate the frequency distributions of NSBs in the local galaxies. We find that, after 10 year observation with its current design sensitivity, LISA might detect $\sim 5$ NSBs both in LMC and M31 with signal-to-noise ratios larger than 10. Some of the NSBs might be three-dimensionally localized well within LMC. These binaries will be useful for studying various topics including the origin of r-process elements.

7 pages, 3 figures

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• GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
• Multi-messenger Observations of a Binary Neutron Star Merger
• Laser Interferometer Space Antenna
• Formation of Double Neutron Star Systems
• Neutron Star Mergers and Nucleosynthesis of Heavy Elements
• The Electromagnetic Counterpart of the Binary Neutron Star Merger LIGO/VIRGO GW170817. VIII. A Comparison to Cosmological Short-duration Gamma-ray Bursts
• How to detect the shortest-period binary pulsars in the era of LISA

Cited by in corpus (13)

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• Populations of double white dwarfs in Milky Way satellites and their detectability with LISA
• LISA and the Existence of a Fast-Merging Double Neutron Star Formation Channel
• Finding binary black holes in the Milky Way with LISA
• The Large Magellanic Cloud Revealed in Gravitational Waves with LISA
• Measuring the Galactic Binary Fluxes with LISA: Metamorphoses and Disappearances of White Dwarf Binaries
• Ultra-relativistic astrophysics using multi-messenger observations of double neutron stars with LISA and the SKA
• How can LISA probe a population of GW190425-like binary neutron stars in the Milky Way?
• Multi-messenger observations of double neutron stars in Galactic disk with gravitational and radio waves
• Astrophysics with the Laser Interferometer Space Antenna
• The effects of Galactic model uncertainties on LISA observations of double neutron stars
• Probing Formation of Double Neutron Star Binaries around 1mHz with LISA
• Probing the millisecond pulsar origin of the $\gamma$-ray excess in the Galactic centre with LISA