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The NANOGrav 11-Year Data Set: Limits on Gravitational Waves from Individual Supermassive Black Hole Binaries
K. Aggarwal, Z. Arzoumanian, P. T. Baker +60
Observations indicate that nearly all galaxies contain supermassive black holes (SMBHs) at their centers. When galaxies merge, their component black holes form SMBH binaries (SMBHB…
The NANOGrav 11-year Data Set: Pulse Profile Variability
P. R. Brook, A. Karastergiou, M. A. McLaughlin +30
Access to 50 years of data has led to the discovery of pulsar emission and rotation variability on timescales of months and years. Most of this long-term variability has been seen…
Studying the solar system with the International Pulsar Timing Array
R. N. Caballero, Y. J. Guo, K. J. Lee +77
Pulsar-timing analyses are sensitive to errors in the solar-system ephemerides (SSEs) that timing models utilise to estimate the location of the solar-system barycentre, the quasi-…
The NANOGrav 12.5-Year Data Set: The Frequency Dependence of Pulse Jitter in Precision Millisecond Pulsars
M. T. Lam, M. A. McLaughlin, Z. Arzoumanian +25
Low-frequency gravitational-wave experiments require the highest timing precision from an array of the most stable millisecond pulsars. Several known sources of noise on short time…
PSR J2234+0611: A new laboratory for stellar evolution
K. Stovall, P. C. C. Freire, J. Antoniadis +30
We report timing results for PSR J2234+0611, a 3.6-ms pulsar in a 32-day, eccentric (e = 0.13) orbit with a helium white dwarf companion discovered as part of the Arecibo Observato…
The NANOGrav 11-year Data Set: Solar Wind Sounding Through Pulsar Timing
D. R. Madison, J. M. Cordes, Z. Arzoumanian +28
The North American Nanohertz Observatory for Gravitational Waves (NANOGrav) has observed dozens of millisecond pulsars for over a decade. We have accrued a large collection of disp…
On-the-Fly Mapping of New Pulsars
Joseph K. Swiggum, Peter A. Gentile
Current single dish, low-frequency radio pulsar surveys provide efficient sky coverage, but poor localization of new discoveries. Here, we describe a practical technique for rapidl…
The NANOGrav 11-Year Data Set: Arecibo Observatory Polarimetry And Pulse Microcomponents
Peter A. Gentile, Maura A. McLaughlin, Paul B. Demorest +25
We present the polarization pulse profiles for 28 pulsars observed with the Arecibo Observatory by the North American Nanohertz Observatory for Gravitational Waves (NANOGrav) timin…
X-Ray and Optical Properties of Black Widows and Redbacks
Mallory S. E. Roberts, Hind Al Noori, Rodrigo A. Torres +7
Black widows and redbacks are binary systems consisting of a millisecond pulsar in a close binary with a companion having matter driven off of its surface by the pulsar wind. X-ray…
The NANOGrav 11-year Data Set: Pulsar-timing Constraints On The Stochastic Gravitational-wave Background
Z. Arzoumanian, P. T. Baker, A. Brazier +57
We search for an isotropic stochastic gravitational-wave background (GWB) in the newly released -year dataset from the North American Nanohertz Observatory for Gravitational Wa…
The NANOGrav 11-year Data Set: High-precision timing of 45 Millisecond Pulsars
Zaven Arzoumanian, Adam Brazier, Sarah Burke-Spolaor +53
We present high-precision timing data over time spans of up to 11 years for 45 millisecond pulsars observed as part of the North American Nanohertz Observatory for Gravitational Wa…