Direct Imaging Discovery of Giant Exoplanet beta Pictoris d: A Decade-Long Game of Hide-and-Seek

arXiv:2606.23801 · astro-ph.EP, astro-ph.IM, astro-ph.SR · Submitted 2026-06-22 · Read on arXiv

Ben J. Sutlieff, Markus J. Bonse, Valentin Christiaens, Clémence Fontanive, Elisabeth C. Matthews, Luke T. Parker, Tim D. Pearce, Jayne L. Birkby, Beth A. Biller, Trent J. Dupuy, Emily O. Garvin, Leyla Iskandarli, Jens Kammerer, Yifan Zhou, Robert J. De Rosa, Aarynn L. Carter, Sasha Hinkley, Matthew A. Kenworthy, William O. Balmer, Iain Hammond, James Mang, Caroline V. Morley, Mark J. Neeser, Olivier Absil, Anthony Boccaletti, Mariangela Bonavita, Brendan P. Bowler, Xueqing Chen, Felix A. Dannert, Julien H. Girard, Markus Kasper, Anne-Marie Lagrange, Pengyu Liu, Gilles Orban de Xivry, Michael Poon, Sascha P. Quanz, Benoît Serra, Johanna M. Vos, Kevin Wagner, Jason Wang, Bernhard Schölkopf, Guido Agapito, Alex Agudo Berbel, Dániel Apai, Andrea Baruffolo, Martin Black, Marco Bonaglia, Runa Briguglio, Yixian Cao, Luca Carbonaro, Lee Chapman, Giovanni Cresci, Yigit Dallilar, Richard Davies, Matthias Deysenroth, Ivan Di Antonio, Amico Di Cianno, Gianluca Di Rico, David Doelman, Mauro Dolci, Frank Eisenhauer, Simone Esposito, Debora Ferruzzi, Helmut Feuchtgruber, Natascha Förster-Schreiber, Kyle Franson, Reinhard Genzel, Stefan Gillessen, Eileen C. Gonzales, Michael Hartl, Jean Hayoz, Heinrich Huber, Christoph Keller, Kateryna Kravchenko, Jarron Leisenring, John Lightfoot, David Lunney, Dieter Lutz, Mike Macintosh, Filippo Mannucci, Stanimir Metchev, Thomas Ott, David Pearson, Alfio Puglisi, Sebastian Rabien, Christian Rau, Armando Riccardi, Bernardo Salasnich, Taro Shimizu, Frans Snik, Eckhard Sturm, Genaro Suárez, Linda Tacconi, Xianyu Tan, William Taylor, Christopher Waring, Marco Xompero

astro-ph.EP, astro-ph.IM, astro-ph.SR

Submitted: 2026-06-22

Comments: 27 pages, 8 figures, accepted for publication in ApJ Letters; very minor changes to match journal version, references updated. Press embargo to be lifted on Wednesday 15th July 2026 at 14:00 CEST

Journal ref: ApJL 1006 L10 (2026)

DOI: 10.3847/2041-8213/ae80a0

Code: https://github.com/TimDPearce/SculptingPlanet

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

Terminology

• Society of Photo-Optical Instrumentation Engineers — 7× in this paper
• Aperture — 5× in this paper · explained in 1 episode
• Objective Function — 5× in this paper · explained in 2 episodes
• Calibration — 4× in this paper · explained in 7 episodes
• Extremely Large Telescope — 4× in this paper
• European Research Council — 3× in this paper
• Consistency — 2× in this paper · explained in 3 episodes
• Regularization — 2× in this paper · explained in 3 episodes
• Very Large Telescope — 2× in this paper
• Accuracy — 1× in this paper · explained in 1 episode
• Alignment — 1× in this paper · explained in 1 episode
• Core — 1× in this paper · explained in 2 episodes
• Degeneracy — 1× in this paper · explained in 3 episodes
• Forward modeling — 1× in this paper · explained in 2 episodes
• Metallicity — 1× in this paper · explained in 3 episodes
• Robustness — 1× in this paper · explained in 5 episodes

Sources

• Direct Imaging and Spectroscopy of Extrasolar Planets
• Gravitational Instabilities in Gaseous Protoplanetary Disks and Implications for Giant Planet Formation
• A SPHEREx Pipeline and Spectral Library for Ultracool Dwarfs
• Discovery of an Exterior Third Planet Orbiting beta Pictoris
• The evolution of exocomets and their source populations

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