Mitigating the Timing Impact of Anomalous Pulse Profile Shape Variability in PSR J1713+0747 with Gaussian Component Modeling

arXiv:2607.12038 · astro-ph.HE, astro-ph.IM · Submitted 2026-07-13 · Read on arXiv

Shania A. Nichols, Michael T. Lam, Gabriella Agazie, Anjana Ashok, Jeremy G. Baier, H. Thankful Cromartie, Kathryn Crowter, Megan E. DeCesar, Paul B. Demorest, Lankeswar Dey, William Fiore, Emmanuel Fonseca, Joseph Glaser, Deborah C. Good, Jeffrey S. Hazboun, Ross J. Jennings, David L. Kaplan, Bjorn Larsen, Georgia A. Lowes, Ryan S. Lynch, Ashley Martsen, Bradley W. Meyers, Patrick M. Meyers, Mason Ng, Daniel J. Oliver, Benetge B. P. Perera, Henri A. Radovan, Scott M. Ransom, Alexander Saffer, Ingrid H. Stairs, Mercedes S. Thompson, Amir Tresnjic, Joris P. W. Verbiest, David Wright

astro-ph.HE, astro-ph.IM

Submitted: 2026-07-13

Comments: 17 pages, 10 figures

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Frequency Dependence — 8× in this paper · explained in 2 episodes
• Alignment — 3× in this paper · explained in 1 episode
• Accuracy — 2× in this paper · explained in 1 episode
• Arecibo Observatory — 2× in this paper
• Calibration — 2× in this paper · explained in 7 episodes
• Green Bank Telescope — 2× in this paper
• NSF Astronomy and Astrophysics Grant — 2× in this paper
• Systematic Bias — 2× in this paper · explained in 3 episodes
• Fidelity — 1× in this paper · explained in 2 episodes
• International Pulsar Timing Array — 1× in this paper
• Modified Julian Date — 1× in this paper
• Robustness — 1× in this paper · explained in 5 episodes
• Very Large Array — 1× in this paper
• pulsar timing arrays — 1× in this paper · explained in 2 episodes

Sources

• A Measurement Model for Precision Pulsar Timing
• The NANOGrav 15 yr and 20 yr Datasets: Timing Events and Pulse Shape Changes
• Characterizing the effects of pulse shape changes on pulsar timing precision

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