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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…
A VLBI distance and transverse velocity for PSR B1913+16
A. T. Deller, J. M. Weisberg, D. J. Nice +1
Using the Very Long Baseline Array, we have made astrometric observations of the binary pulsar B1913+16 spanning an 18 month period in 2014 - 2015. From these observations we make…
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…
The Binary Companion of Young, Relativistic Pulsar J1906+0746
Joeri van Leeuwen, Laura Kasian, Ingrid H. Stairs +13
PSR J1906+0746 is a young pulsar in the relativistic binary with the second-shortest known orbital period, of 3.98 hours. We here present a timing study based on five years of obse…
Arecibo Pulsar Survey Using ALFA. III. Precursor Survey and Population Synthesis
J. K. Swiggum, D. R. Lorimer, M. A. McLaughlin +33
The Pulsar Arecibo L-band Feed Array (PALFA) Survey uses the ALFA 7-beam receiver to search both inner and outer Galactic sectors visible from Arecibo ($32^{\circ}\lesssim \ell \le…
Timing and Interstellar Scattering of Thirty-five Distant Pulsars Discovered in the PALFA Survey
D. J. Nice, E. Altiere, S. Bogdanov +34
We have made extensive observations of 35 distant slow (non-recycled) pulsars discovered in the ongoing Arecibo PALFA pulsar survey. Timing observations of these pulsars over sever…
Four Highly Dispersed Millisecond Pulsars Discovered in the Arecibo PALFA Galactic Plane Survey
F. Crawford, K. Stovall, A. G. Lyne +29
We present the discovery and phase-coherent timing of four highly dispersed millisecond pulsars (MSPs) from the Arecibo PALFA Galactic plane survey: PSRs J1844+0115, J1850+0124, J1…
Two Millisecond Pulsars Discovered by the PALFA Survey and a Shapiro Delay Measurement
J. S. Deneva, P. C. C. Freire, J. M. Cordes +29
We present two millisecond pulsar discoveries from the PALFA survey of the Galactic plane with the Arecibo telescope. PSR J1955+2527 is an isolated pulsar with a period of 4.87 ms,…
A precise mass measurement of the intermediate-mass binary pulsar PSR J1802-2124
Robert D. Ferdman, Ingrid H. Stairs, Michael Kramer +14
PSR J1802-2124 is a 12.6-ms pulsar in a 16.8-hour binary orbit with a relatively massive white dwarf (WD) companion. These properties make it a member of the intermediate-mass clas…
The international pulsar timing array project: using pulsars as a gravitational wave detector
G. Hobbs, A. Archibald, Z. Arzoumanian +55
The International Pulsar Timing Array project combines observations of pulsars from both Northern and Southern hemisphere observatories with the main aim of detecting ultra-low fre…