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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 5.

Left: 2D 5σ planet effective BB temperature sensitivity map, combined across all epochs by selecting the best sensitivity (“combined minimum,” see Paper II ), in sky coordinates (north up, east left). The central region (<0﹩\mathop{.}\limits^{^{\prime\prime} }﹩75, or <1.5 FWHM, radial separations) is masked (poor detectability). A discrete color map is chosen to highlight the different sensitivity zones across the image. Center: same as the left panel but for an S/N = 5 detection threshold. Right: 5σ and S/N = 5 median planet effective BB temperature curves combined across all epochs.

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