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Worlds Next Door: A Candidate Giant Planet Imaged in the Habitable Zone of α Centauri A. I. Observations, Orbital and Physical Properties, and Exozodi Upper Limits

Authors: Charles Beichman, Aniket Sanghi, Dimitri Mawet, Pierre Kervella, Kevin Wagner, Billy Quarles, Jack J. Lissauer, Max Sommer, Mark Wyatt, Nicolas Godoy, William O. Balmer, Laurent Pueyo, Jorge Llop-Sayson, Jonathan Aguilar, Rachel Akeson, Ruslan Belikov, Anthony Boccaletti, Elodie Choquet, Edward Fomalont, Thomas Henning, Dean Hines, Renyu Hu, Pierre-Olivier Lagage, Jarron Leisenring, James Mang, Michael Ressler, Eugene Serabyn, Pascal Tremblin, Marie Ygouf, Mantas Zilinskas

Charles Beichman et al 2025 The Astrophysical Journal Letters 989 .

Provider: AAS Journals

Caption: Figure 3.

PSF-subtracted image centered on α Cen A for the 2025 April observations, which provides the longest temporal baseline to test the stationary background source hypothesis. A square marks the location where S1 was detected in the 2024 August epoch. A cross marks the expected location of S1 if it were a fixed background object and showed apparent motion with respect to α Cen A due to the star’s parallactic and proper motion. No source is detected at this location.

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