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Seismic Oscillations Excited by Giant Impacts in Directly Imaged Giant Planets [PDF]
The Astrophysical JournalThe radii and masses of many giant exoplanets imply their interiors each contain more than ∼100 M _⊕ of solids. A large metal content may arise when a giant planet grows by colliding and merging with multiple ∼10 M _⊕ solid cores.
J. J. Zanazzi, Eugene Chiang, Yifan Zhou
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F1000Research, 2023 Resource allocation is essential to the selection and implementation of innovative projects in science and technology. With large stakes involved in concentrating large fundings over a few promising projects, current “winner-take-all” models for grant ...
Marc Santolini +8 more
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Warm giant exoplanet characterisation: current state, challenges and outlook
Frontiers in Astronomy and Space Sciences, 2023 The characterisation of giant exoplanets is crucial to constrain giant planet formation and evolution theory and for putting the solar-system’s giant planets in perspective. Typically, mass-radius (M-R) measurements of moderately irradiated warm Jupiters
Simon Müller, Ravit Helled
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Hot Jupiters Have Giant Companions: Evidence for Coplanar High-eccentricity Migration
The Astrophysical Journal Letters, 2023 This study considers the characteristics of planetary systems with giant planets based on a population-level analysis of the California Legacy Survey planet catalog. We identified three characteristics common to hot Jupiters (HJs).
Jon K. Zink, Andrew W. Howard
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Inner Planetary System Gap Complexity is a Predictor of Outer Giant Planets
The Astronomical Journal, 2023 The connection between inner small planets and outer giant planets is crucial to our understanding of planet formation across a wide range of orbital separations. While Kepler provided a plethora of compact multiplanet systems at short separations (≲1 au)
Matthias Y. He, Lauren M. Weiss
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TOI-4600 b and c: Two Long-period Giant Planets Orbiting an Early K Dwarf
The Astrophysical Journal Letters, 2023 We report the discovery and validation of two long-period giant exoplanets orbiting the early K dwarf TOI-4600 ( V = 12.6, T = 11.9), first detected using observations from the Transiting Exoplanet Survey Satellite (TESS) by the TESS Single Transit ...
Ismael Mireles +33 more
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Saturn's Rings as a Seismograph to Probe Saturn's Internal Structure
AGU Advances, 2020 As it has already done for Earth, the Sun, and the stars, seismology has the potential to radically change the way the interiors of giant planets are studied.
Christopher R. Mankovich
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Evolution of a Water-rich Atmosphere Formed by a Giant Impact on an Earth-sized Planet
The Astrophysical Journal, 2023 The atmosphere of a terrestrial planet that is replenished with secondary gases should have accumulated hydrogen-rich gas from its protoplanetary disk.
Kenji Kurosaki +3 more
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EPJ Web of Conferences, 2011 It has been shown that an Earth-size planet or a super-Earth, in resonance with a transiting Jupiter-like body around an M star, can create detectable TTV signals (Kirste & Haghighipour, 2011).
Rastegar S., Haghighipour N.
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Breaking Degeneracies in Formation Histories by Measuring Refractory Content in Gas Giants
The Astrophysical Journal, 2023 Relating planet formation to atmospheric composition has been a long-standing goal of the planetary science community. So far, most modeling studies have focused on predicting the enrichment of heavy elements and the C/O ratio in giant planet atmospheres.
Yayaati Chachan +3 more
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