Where binary neutron stars merge: predictions from IllustrisTNG

Abstract

The rate and location of Binary Neutron Star (BNS) mergers are determined by a combination of the star formation history and the Delay Time Distribution (DTD) function. In this paper, we couple the star formation rate histories (SFRHs) from the IllustrisTNG model to a series of varied assumptions for the BNS DTD to make predictions for the BNS merger host galaxy mass function. These predictions offer two outcomes: (i) in the near term: influence BNS merger event follow-up strategy by scrutinizing where most BNS merger events are expected to occur and (ii) in the long term: constrain the DTD for BNS merger events once the host galaxy mass function is observationally well determined. From our fiducial model analysis, we predict that 50% of BNS mergers will occur in host galaxies with stellar mass between $10^{10}-10^{11}$ $M_{\odot }$, 68% between $4\times 10^9-3\times 10^{11}$ $M_{\odot }$, and 95% between $4\times 10^8-2\times 10^{12}$ $M_{\odot }$. We find that the details of the DTD employed does not have a strong effect on the peak of the host mass function. However, varying the DTD provides enough spread that the true DTD can be determined from enough electromagnetic observations of BNS mergers. Knowing the true DTD can help us determine the prevalence of BNS systems formed through highly eccentric and short separation fast-merging channels and can constrain the dominant source of r-process material.

arXiv comment11 Pages, 3 figures

References in corpus (64)

• GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
• Advanced Virgo: a 2nd generation interferometric gravitational wave detector
• Multi-messenger Observations of a Binary Neutron Star Merger
• Simulating Galaxy Formation with the IllustrisTNG Model
• First results from the IllustrisTNG simulations: matter and galaxy clustering
• First results from the IllustrisTNG simulations: the stellar mass content of groups and clusters of galaxies
• GW190425: Observation of a Compact Binary Coalescence with Total Mass $\sim 3.4M_{\odot }$
• First results from the IllustrisTNG simulations: the galaxy color bimodality
• A statistical study of 233 pulsar proper motions
• First results from the IllustrisTNG simulations: A tale of two elements -- chemical evolution of magnesium and europium
• Characterization of the LIGO detectors during their sixth science run
• Simulating galaxy formation with black hole driven thermal and kinetic feedback
• Swope Supernova Survey 2017a (SSS17a), the Optical Counterpart to a Gravitational Wave Source
• First results from the IllustrisTNG simulations: radio haloes and magnetic fields
• A model for cosmological simulations of galaxy formation physics
• A kilonova as the electromagnetic counterpart to a gravitational-wave source
• Double Compact Objects I: The Significance Of The Common Envelope On Merger Rates
• Formation of Double Neutron Star Systems
• A new route towards merging massive black holes
• The Electromagnetic Counterpart of the Binary Neutron Star Merger LIGO/Virgo GW170817. I. Dark Energy Camera Discovery of the Optical Counterpart
• KAGRA: 2.5 Generation Interferometric Gravitational Wave Detector
• What is the Most Promising Electromagnetic Counterpart of a Neutron Star Binary Merger?
• The effect of massive binaries on stellar populations and supernova progenitors
• The progenitors of compact-object binaries: impact of metallicity, common envelope and natal kicks
• A physical model for cosmological simulations of galaxy formation: multi-epoch validation
• The death of massive stars - II. Observational constraints on the progenitors of type Ibc supernovae
• The delay-time distribution of type-Ia supernovae from Sloan II
• BPASS predictions for Binary Black-Hole Mergers
• Runaway stars as progenitors of supernovae and gamma-ray bursts
• Going the Distance: Mapping Host Galaxies of LIGO and Virgo Sources in Three Dimensions Using Local Cosmography and Targeted Follow-up
• Neutron Star Mergers as sites of r-process Nucleosynthesis and Short Gamma-Ray Bursts
• Galaxy Strategy for LIGO-Virgo Gravitational Wave Counterpart Searches
• The Electromagnetic Counterpart of the Binary Neutron Star Merger LIGO/VIRGO GW170817. VII. Properties of the Host Galaxy and Constraints on the Merger Timescale
• The properties of merging black holes and neutron stars across cosmic time
• How Gravitational-wave Observations Can Shape the Gamma-ray Burst Paradigm
• Accuracy of inference on the physics of binary evolution from gravitational-wave observations
• The cosmic merger rate density evolution of compact binaries formed in young star clusters and in isolated binaries
• The impact of electron-capture supernovae on merging double neutron stars
• Possible binary progenitors for the type Ib supernova iPTF13bvn
• Optical Follow-up of Gravitational-wave Events with Las Cumbres Observatory
• Predicting the binary black hole population of the Milky Way with cosmological simulations
• Binary Neutron Star Mergers and Third Generation Detectors: Localization and Early Warning
• Host galaxies of merging compact objects: mass, star formation rate, metallicity and colours
• Advanced LIGO Constraints on Neutron Star Mergers and R-Process Sites
• The first six months of the Advanced LIGO's and Advanced Virgo's third observing run with GRANDMA
• A new delay time distribution for merging neutron stars tested against Galactic and cosmic data
• Host galaxy properties of mergers of stellar binary black holes and their implications for advanced LIGO gravitational wave sources
• r-process enrichment of ultra-faint dwarf galaxies by fast merging double neutron stars
• The host galaxies of double compact objects merging in the local Universe
• Optimising gravitational waves follow-up using galaxies stellar mass
• The host galaxies of double compact objects across cosmic time
• Cherenkov Telescope Array is Well Suited to Follow Up Gravitational Wave Transients
• The binary-host connection: astrophysics of gravitational wave binaries from their host galaxy properties
• Galaxy Survey On The Fly: Prospects of Rapid Galaxy Cataloging to Aid the Electromagnetic Follow-up of Gravitational-wave Observations
• Measuring the delay time distribution of binary neutron stars. I. Through Scaling Relations of the Host Galaxies of Gravitational Wave Events
• Binary neutron star formation and the origin of GW170817
• Evolution of dwarf galaxies hosting GW150914-like events
• Constraining Delay Time Distribution of Binary Neutron Star Mergers from Host Galaxy Properties
• Strategies for the Follow-up of Gravitational Wave Transients with the Cherenkov Telescope Array
• Gravitational-wave follow-up with CTA after the detection of GRBs in the TeV energy domain
• Measuring the delay time distribution of binary neutron stars. III. Using the individual star formation histories of gravitational wave event host galaxies in the local universe
• Radio Forensics Could Unmask Nearby Off-axis Gamma-ray Bursts
• Search for radio remnants of nearby off-axis Gamma-Ray Bursts in a sample of Swift/BAT events
• FIRST J1419+3940 as the First Observed Radio Flare from a Neutron Star Merger

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• The Spatially Resolved Properties of the GW170817 Host Galaxy
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