Analysis of Multi-Hour Continuous Observations of Seven Millisecond Pulsars

Abstract

Precision pulsar timing can be used for a variety of astrophysical tests from the detection of gravitational waves to probing the properties of the interstellar medium (ISM). Here we present analyses of the noise contributions to pulsar timing residuals from continuous multi-hour observations of seven millisecond pulsars (MSPs). We present scintillation bandwidth measurements for all MSPs in the sample, some for the first time, and scintillation timescale measurements and lower limits for all MSPs for the first time. In addition, we present upper limits on the contribution of pulse phase jitter to the timing residual error for all MSPs. These long observations also allow us to constrain variations in dispersion measures (DMs) on hour-long timescales for several millisecond pulsars. We find that there are no apparent DM variations in any of the MSPs studied on these timescales as expected. In light of new radio telescopes such as the Canadian Hydrogen Intensity Mapping Experiment (CHIME), which will be able to time many pulsars for a short time each day, we search for differences in timing precisions from continuous TOAs and from equivalent length time-discontinuous TOAs. We find no differences in the precision for any MSP in our sample, as expected. We conclude that the TOA variations are consistent with the expected breakdown into template-fitting, jitter, and scintillation errors.

arXiv comment18 pages, 5 figures, 5 tables, accepted by ApJ

References in corpus (53)

• A Massive Pulsar in a Compact Relativistic Binary
• Relativistic Shapiro delay measurements of an extremely massive millisecond pulsar
• TEMPO2, a new pulsar timing package. I: Overview
• Tests of general relativity from timing the double pulsar
• PSRCHIVE and PSRFITS An Open Approach to Radio Pulsar Data Storage and Analysis
• The NANOGrav 11-year Data Set: High-precision timing of 45 Millisecond Pulsars
• European Pulsar Timing Array Limits On An Isotropic Stochastic Gravitational-Wave Background
• Gravitational waves from binary supermassive black holes missing in pulsar observations
• The International Pulsar Timing Array: First Data Release
• The North American Nanohertz Observatory for Gravitational Waves
• The NANOGrav 11-year Data Set: Pulsar-timing Constraints On The Stochastic Gravitational-wave Background
• Limits on the Stochastic Gravitational Wave Background from the North American Nanohertz Observatory for Gravitational Waves
• The NANOGrav Nine-year Data Set: Limits on the Isotropic Stochastic Gravitational Wave Background
• The characteristics of millisecond pulsar emission: I. Spectra, pulse shapes and the beaming fraction
• Assessing the Role of Spin Noise in the Precision Timing of Millisecond Pulsars
• European Pulsar Timing Array Limits on Continuous Gravitational Waves from Individual Supermassive Black Hole Binaries
• Measurement and correction of variations in interstellar dispersion in high-precision pulsar timing
• The Parkes Pulsar Timing Array
• Spectral properties of 441 radio pulsars
• The NANOGrav Nine-year Data Set: Observations, Arrival Time Measurements, and Analysis of 37 Millisecond Pulsars
• Faint Scattering Around Pulsars: Probing the Interstellar Medium on Solar System Size Scales
• Gravitational-wave Limits from Pulsar Timing Constrain Supermassive Black Hole Evolution
• Testing the universality of free fall by tracking a pulsar in a stellar triple system
• The NANOGrav 11-Year Data Set: Limits on Gravitational Waves from Individual Supermassive Black Hole Binaries
• PALFA Discovery of a Highly Relativistic Double Neutron Star Binary
• An all-sky search for continuous gravitational waves in the Parkes Pulsar Timing Array data set
• Theory of Parabolic Arcs in Interstellar Scintillation Spectra
• Limitations in timing precision due to single-pulse shape variability in millisecond pulsars
• Tests of Gravitational Symmetries with Pulsar Binary J1713+0747
• The NANOGrav Nine-Year Data Set: Measurement and Interpretation of Variations in Dispersion Measures
• Frequency-Dependent Dispersion Measures and Implications for Pulsar Timing
• Elementary Wideband Timing of Radio Pulsars
• Pulsar Observations of Extreme Scattering Events
• The Crab Pulsar at Centimeter Wavelengths II: Single Pulses
• Measuring pulse times of arrival from broadband pulsar observations
• The NANOGrav Nine-year Data Set: Monitoring Interstellar Scattering Delays
• A Second Chromatic Timing Event of Interstellar Origin toward PSR J1713+0747
• Prospects for High-Precision Pulsar Timing
• The NANOGrav Nine-Year Data Set: Noise Budget for Pulsar Arrival Times on Intraday Timescales
• Systematic and Stochastic Variations in Pulsar Dispersion Measures
• Modelling annual and orbital variations in the scintillation of the relativistic binary PSR J1141$-$6545
• Scintillation arcs in low-frequency observations of the timing-array millisecond pulsar J0437-4715
• Interstellar Scintillation of the Double Pulsar J0737$-$3039
• Pulse intensity modulation and the timing stability of millisecond pulsars: A case study of PSR J1713+0747
• A 24-Hour Global Campaign To Assess Precision Timing of the Millisecond Pulsar J1713+0747
• The NANOGrav 12.5-Year Data Set: The Frequency Dependence of Pulse Jitter in Precision Millisecond Pulsars
• Cyclic spectroscopy of The Millisecond Pulsar, B1937+21
• Robust Estimation of Scattering in Pulsar Timing Analysis
• Optimal Frequency Ranges for Sub-Microsecond Precision Pulsar Timing
• The NANOGrav 11-year Data Set: Pulse Profile Variability
• Optimizing Pulsar Timing Arrays Observations for Detection and Characterization of Low-Frequency Gravitational Wave Sources
• The Frequency Dependence of Scintillation Arc Thickness in Pulsar B1133+16
• Single-Source Gravitational Wave Limits from the J1713+0747 24-hr Global Campaign

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• The NANOGrav 15-Year Data Set: Detector Characterization and Noise Budget
• Electron Density Structure of the Local Galactic Disk
• Measuring Interstellar Delays of PSR J0613-0200 over 7 years, using the Large European Array for Pulsars
• The NANOGrav 12.5-Year Data Set: Monitoring Interstellar Scattering Delays
• A Study in Frequency-Dependent Effects on Precision Pulsar Timing Parameters with the Pulsar Signal Simulator
• A Cyclic Spectroscopy Scintillation Study of PSR B1937+21 I. Demonstration of Improved Scintillometry