Results 1 to 10 of about 12,076,896 (214)
Pulse Profile Variability of PSR J1022+1001 in NANOGrav Data
The Astrophysical JournalPulse profile stability is a central assumption of standard pulsar timing methods. Thus, it is important for pulsar timing array experiments such as the North American Nanohertz Observatory for Gravitational Waves (NANOGrav) to account for any pulse ...
William Fiore +48 more
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An Improved Wiener Filtration Method for Constructing the Ensemble Pulsar Timescale
The Astrophysical JournalAn improved Wiener filtration (WF) method for constructing the ensemble pulsar timescale (EPT) is proposed to solve the existing problems in the WF algorithm.
Zhehao Zhang, Minglei Tong, Tinggao Yang
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Noisy Timing Behavior is a Feature of Central Compact Object Pulsars
The Astrophysical JournalWe present a timing study of the three known central compact object (CCO) pulsars, isolated cooling neutron stars in supernova remnants, using observations from Chandra, XMM-Newton, and NICER spanning two decades.
K. I. Perez +2 more
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Pulsar Cyclic Spectroscopy in the Partial-deconvolution Regime: Benefits and Limitations
The Astrophysical JournalWe explore possible advantages of cyclic spectroscopy for observations of pulsars in instances where full cyclic deconvolution is not possible. We compute cyclic merits and full-deconvolution regime boundaries for pulsars observed by NANOGrav and discuss
Jacob E. Turner +7 more
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Stochastic Wave Dark Matter with Fermi-LAT γ-Ray Pulsar Timing Array
The Astrophysical Journal LettersPulsar timing arrays (PTAs) can detect disturbances in the fabric of spacetime on a galactic scale by monitoring the arrival time of pulses from millisecond pulsars (MSPs).
Hoang Nhan Luu +6 more
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The Astrophysical JournalMultiple studies have investigated potential frequency-dependent dispersion measures (DMs) in PSR B0329+54, with sensitivities at levels of 10 ^−3 pc cm ^−3 or higher, using frequencies below 1 GHz. Utilizing the extensive bandwidth of the upgraded Giant
Shyam S. Sharma +4 more
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A Realistic Pulsar–Supermassive Black Hole Timing Model
The Astrophysical Journal Supplement SeriesTiming observations of pulsars orbiting around a supermassive black hole (SMBH) can measure the spacetime around the SMBH to a high precision and thus be a novel probe of the gravity theory.
Zexin Hu, Ziming Wang, Lijing Shao
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γ-Ray Pulsar Emission is Mostly Stable on Timescales from Minutes to Years
The Astrophysical JournalWe present a method for the detection and characterization of random changes in the flux from γ -ray pulsars on sub-hour timescales, much shorter than variations that can be accessed using direct flux measurements.
M. Kerr
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The Astrophysical JournalWe present updated hard X-ray polarization measurements of the Crab pulsar and nebula obtained with the balloon-borne polarimeter XL-Calibur in the ∼19–64 keV energy range.
Matthew G. Baring +28 more
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CHIME-o-Grav: Wideband Timing of Four Millisecond Pulsars from the NANOGrav 15 yr Dataset
The Astrophysical JournalWideband timing of the North American Nanohertz Observatory for Gravitational Waves (NANOGrav) datasets was first done for the 12.5 yr dataset. This method, where a single time of arrival and a single dispersion measure (DM) are measured using the entire
Gabriella Y. Agazie +52 more
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