Multimessenger Approaches to Supermassive Black Hole Binary Detection and Parameter Estimation II: Optimal Strategies for a Pulsar Timing Array

Abstract

Pulsar timing arrays (PTAs) are Galactic-scale gravitational wave (GW) detectors consisting of precisely-timed pulsars distributed across the sky. Within the decade, PTAs are expected to detect the nanohertz GWs emitted by close-separation supermassive black hole binaries (SMBHBs), thereby opening up the low frequency end of the GW spectrum for science. Individual SMBHBs which power active galactic nuclei are also promising multi-messenger sources; they may be identified via theoretically predicted electromagnetic (EM) signatures and be followed up by PTAs for GW observations. In this work, we study the detection and parameter estimation prospects of a PTA which targets EM-selected SMBHBs. Adopting a simulated Galactic millisecond pulsar population, we envisage three different pulsar timing campaigns which observe three mock sources at different sky locations. We find that an all-sky PTA which times the best pulsars is an optimal and feasible approach to observe EM-selected SMBHBs and measure their source parameters to high precision (i.e., comparable to or better than conventional EM measurements). We discuss the implications of our findings in the context of the future PTA experiment with the planned Deep Synoptic Array-2000 and the multi-messenger studies of SMBHBs such as the well-known binary candidate OJ 287.

arXiv comment14 pages, 6 figures, 3 tables; ApJ accepted; data will be available with the ApJ publication

References in corpus (47)

• The Astropy Project: Building an inclusive, open-science project and status of the v2.0 core package
• LSST: from Science Drivers to Reference Design and Anticipated Data Products
• The NANOGrav 12.5-year Data Set: Search For An Isotropic Stochastic Gravitational-Wave Background
• Birth and Evolution of Isolated Radio Pulsars
• The Parkes Multibeam Pulsar Survey: I. Observing and Data Analysis Systems, Discovery and Timing of 100 Pulsars
• Use and Abuse of the Fisher Information Matrix in the Assessment of Gravitational-Wave Parameter-Estimation Prospects
• The NANOGrav 11-year Data Set: High-precision timing of 45 Millisecond Pulsars
• The North American Nanohertz Observatory for Gravitational Waves
• Binary Black Hole Accretion From a Circumbinary Disk: Gas Dynamics Inside the Central Cavity
• A possible close supermassive black-hole binary in a quasar with optical periodicity
• The International Pulsar Timing Array second data release: Search for an isotropic Gravitational Wave Background
• On the evidence for a common-spectrum process in the search for the nanohertz gravitational-wave background with the Parkes Pulsar Timing Array
• A systematic search for close supermassive black hole binaries in the Catalina Real-Time Transient Survey
• Common-red-signal analysis with 24-yr high-precision timing of the European Pulsar Timing Array: Inferences in the stochastic gravitational-wave background search
• Accretion into the Central Cavity of a Circumbinary Disk
• Assessing the Role of Spin Noise in the Precision Timing of Millisecond Pulsars
• A Population of Short-Period Variable Quasars from PTF as Supermassive Black Hole Binary Candidates
• The Parkes Pulsar Timing Array
• Circumbinary MHD Accretion into Inspiraling Binary Black Holes
• Relativistic boost as the cause of periodicity in a massive black-hole binary candidate
• The Gravitational Wave Background from Massive Black Hole Binaries in Illustris: spectral features and time to detection with pulsar timing arrays
• The NANOGrav 12.5 yr Data Set: Observations and Narrowband Timing of 47 Millisecond Pulsars
• The NANOGrav 11-Year Data Set: Limits on Gravitational Waves from Individual Supermassive Black Hole Binaries
• Measuring the parameters of massive black hole binary systems with Pulsar Timing Array observations of gravitational waves
• Authenticating the Presence of a Relativistic Massive Black Hole Binary in OJ 287 Using its General Relativity Centenary Flare: Improved Orbital Parameters
• Astrophysics Milestones For Pulsar Timing Array Gravitational Wave Detection
• Single Sources in the Low-Frequency Gravitational Wave Sky: properties and time to detection by pulsar timing arrays
• Optimal strategies for continuous gravitational wave detection in pulsar timing arrays
• PsrPopPy: An open-source package for pulsar population simulations
• A Periodically Varying Luminous Quasar at z=2 from the Pan-STARRS1 Medium Deep Survey: A Candidate Supermassive Black Hole Binary in the Gravitational Wave-Driven Regime
• Supermassive Black Hole Binary Candidates from the Pan-STARRS1 Medium Deep Survey
• Are we there yet? Time to detection of nanohertz gravitational waves based on pulsar-timing array limits
• Periodic self-lensing from accreting massive black hole binaries
• The NANOGrav Nine-Year Data Set: Excess Noise in Millisecond Pulsar Arrival Times
• Realistic sensitivity curves for pulsar timing arrays
• A Systematic Search for Periodically Varying Quasars in Pan-STARRS1: An Extended Baseline Test in Medium Deep Survey Field MD09
• The NANOGrav 12.5-Year Data Set: The Frequency Dependence of Pulse Jitter in Precision Millisecond Pulsars
• The Mass of Quasars
• Gravitational Self-Lensing in Populations of Massive Black Hole Binaries
• Swift data hint at a binary Super Massive Black Hole candidate at sub-parsec separation
• Optimal Frequency Ranges for Sub-Microsecond Precision Pulsar Timing
• Optimizing Pulsar Timing Arrays to Maximize Gravitational Wave Single Source Detection: a First Cut
• Multi-messenger Approaches to Supermassive Black Hole Binary Detection and Parameter Estimation: Implications for Nanohertz Gravitational Wave Searches with Pulsar Timing Arrays
• Spectral Energy Distributions of Candidate Periodically-Variable Quasars: Testing the Binary Black Hole Hypothesis
• A Multi-wavelength Analysis of Binary-AGN Candidate PSO J334.2028+01.4075
• Optimization of NANOGrav's Time Allocation for Maximum Sensitivity to Single Sources
• Fresnel Models for Gravitational Wave Effects on Pulsar Timing

Cited by in corpus (1)

• The NANOGrav 15-year Data Set: Bayesian Limits on Gravitational Waves from Individual Supermassive Black Hole Binaries