Toddlers in Resonance I: low masses and eccentricities of the 17 Myr giant planets HIP 67522 bc from transit timing variations

arXiv:2609.35979 · astro-ph.EP · Submitted 2026-09-28 · Read on arXiv

astro-ph.EP

Submitted: 2026-09-28

Updated: 2026-09-28

Terminology

• Aperture — 14× in this paper · explained in 1 episode
• Median Absolute Deviation — 6× in this paper
• Society of Photo-Optical Instrumentation Engineers — 4× in this paper
• Core — 3× in this paper · explained in 2 episodes
• Aperture Photometry — 2× in this paper · explained in 1 episode
• Gaussian Process — 2× in this paper
• Transmission spectroscopy — 2× in this paper · explained in 2 episodes
• Abundance — 1× in this paper · explained in 1 episode
• Adam — 1× in this paper · explained in 2 episodes
• Bayesian Information Criterion — 1× in this paper
• Benchmark — 1× in this paper · explained in 2 episodes
• Calibration — 1× in this paper · explained in 7 episodes
• Consistency — 1× in this paper · explained in 3 episodes
• Degeneracy — 1× in this paper · explained in 3 episodes
• Markov Chain Monte Carlo — 1× in this paper
• Perth Exoplanet Survey Telescope — 1× in this paper

Sources

• Fast Learning Requires Good Memory: A Time-Space Lower Bound for Parity Learning
• Perpendicular laser cooling with a rotating wall potential in a Penning trap
• Chaotic Advection at the Pore Scale: Mechanisms, Upscaling and Implications for Macroscopic Transport
• Transit timing and starspot-induced transit depth variations in the about 17 Myr old HIP 67522 system
• Two-stage disruption of resonant chains
• The Prevalence of Resonance Among Young, Close-in Planets
• Atmospheric characterization of HIP 67522 b with VLT/CRIRES+. VLT/CRIRES+ suggests a heavier planet and hints at deuterium fractionation
• The occurrence of small, short-period planets younger than 200 Myr with TESS

Related papers

• PDS 70 c and SR 12 c: Observational Constraints on Giant-Planet and Satellite Formation
• Two-stage disruption of resonant chains
• Detectability of resolved hydrogen lines from the accretion shock at gas giants and their CPDs
• Binary-lens Microlensing Degeneracy: Impact on Planetary Sensitivity and Mass-ratio Function
• Atmospheric escape fractionates secondary but not primary atmospheres
• The Occurrence Rate of Nearby Planetary Companions to Hot Jupiters