Simulations of giant impacts between 0.2-4 Earth-mass planets yield post-impact luminosities of 5e-5 to 0.1 L_sun cooling over 1-2000 days, predicting 0-14 detections in Gaia DR4 and a comparable number in LSST.
Monthly Notices of the Royal Astronomical Society517(3), 3132–3143 (2022)
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Analysis of SPH simulations and collision velocity models predicts that collisionally-produced super-Mercuries have higher densities at low mass and short period, identifying GJ 367b as the strongest observed candidate.
A review of SPH modeling for global-scale impacts, emphasizing material properties across size regimes and links to Solar System observations.
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Can giant impacts be directly detected in other star systems?
Simulations of giant impacts between 0.2-4 Earth-mass planets yield post-impact luminosities of 5e-5 to 0.1 L_sun cooling over 1-2000 days, predicting 0-14 detections in Gaia DR4 and a comparable number in LSST.
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The Maximum Density of a Collisionally-Produced Planet is A Function of its Mass and Orbital Period
Analysis of SPH simulations and collision velocity models predicts that collisionally-produced super-Mercuries have higher densities at low mass and short period, identifying GJ 367b as the strongest observed candidate.
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Recent advances in modelling of global-scale collisions using smoothed particle hydrodynamics
A review of SPH modeling for global-scale impacts, emphasizing material properties across size regimes and links to Solar System observations.