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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 2.

Configuration of J2043+1711 and Gaia DR3 1811439569904158208. The top panel shows PS1 photometry; the blue circle shows the location of the main-sequence star in Gaia DR3, and the red cross is the location of J2043+1711. The arrows show the directions and relative magnitudes of the proper motions of each object. The bottom panel shows a diagram containing the relative distances to each object, as defined in Equation (6). The golden star is the location of the Sun. Note that the two angles labeled θ are equivalent, since ϕ is small and l ≪ d.

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