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The Anomalous Acceleration of PSR J2043+1711: Long-period Orbital Companion or Stellar Flyby?

  • Authors: Thomas Donlon, Sukanya Chakrabarti, Michael T. Lam, Daniel Huber, Daniel Hey, Enrico Ramirez-Ruiz, Benjamin Shappee, David L. Kaplan, Gabriella Agazie, Akash Anumarlapudi, Anne M. Archibald, Zaven Arzoumanian, Paul T. Baker, Paul R. Brook, H. Thankful Cromartie, Kathryn Crowter, Megan E. DeCesar, Paul B. Demorest, Timothy Dolch, Elizabeth C. Ferrara, William Fiore, Emmanuel Fonseca, Gabriel E. Freedman, Nate Garver-Daniels, Peter A. Gentile, Joseph Glaser, Deborah C. Good, Jeffrey S. Hazboun, Mark Huber, Ross J. Jennings, Megan L. Jones, Matthew Kerr, Duncan R. Lorimer, Jing Luo, Ryan S. Lynch, Alexander McEwen, Maura A. McLaughlin, Natasha McMann, Bradley W. Meyers, Cherry Ng, David J. Nice, Timothy T. Pennucci, Benetge B. P. Perera, Nihan S. Pol, Henri A. Radovan, Scott M. Ransom, Paul S. Ray, Ann Schmiedekamp, Carl Schmiedekamp, Brent J. Shapiro-Albert, Ingrid H. Stairs, Kevin Stovall, Abhimanyu Susobhanan, Joseph K. Swiggum, Michael A. Tucker, Haley M. Wahl

Thomas Donlon et al 2025 The Astrophysical Journal 983 .

  • Provider: AAS Journals

Caption: Figure 4.

Posterior distributions for orbital parameters of a possible circumbinary companion around J2043+1711. The orbital period and companion mass are well constrained by the model, although the configuration of the orbit can only be constrained to lie within a specific quadrant. The inclination angle of the orbit is not constrained, and is strongly covariant with the orbital period.

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