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The Anomalous Acceleration of PSR J2043+1711: Long-Period Orbital Companion or Stellar Flyby?
Thomas Donlon, Sukanya Chakrabarti, Michael T. Lam +53
Based on the rate of change of its orbital period, PSR J2043+1711 has a substantial peculiar acceleration of 3.5 0.8 mm/s/yr, which deviates from the acceleration predicted b…
Bayesian Solar Wind Modeling with Pulsar Timing Arrays
Jeffrey S. Hazboun, Joseph Simon, Dustin R. Madison +27
Using Bayesian analyses we study the solar electron density with the NANOGrav 11-year pulsar timing array (PTA) dataset. Our model of the solar wind is incorporated into a global f…
The NANOGrav 12.5-Year Data Set: Polarimetry and Faraday Rotation Measures from Observations of Millisecond Pulsars with the Green Bank Telescope
Haley M. Wahl, Maura McLaughlin, Peter A. Gentile +28
In this work, we present polarization profiles for 23 millisecond pulsars observed at 820 MHz and 1500 MHz with the Green Bank Telescope as part of the NANOGrav pulsar timing array…
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…
Testing Theories of Gravitation Using 21-Year Timing of Pulsar Binary J1713+0747
W. W. Zhu, I. H. Stairs, P. B. Demorest +17
We report 21-yr timing of one of the most precise pulsars: PSR J1713+0747. Its pulse times of arrival are well modeled by a comprehensive pulsar binary model including its three-di…
A broadband radio study of the average profile and giant pulses from PSR B1821-24A
A. V. Bilous, T. T. Pennucci, P. Demorest +1
We present the results of wide-band (720-2400 MHz) study of PSR B1821-24A (J1824-2452A, M28A), an energetic millisecond pulsar visible in radio, X-rays and gamma-rays. In radio, th…