Exoplanets & Planetary Science
Research on exoplanets, planetary formation, and habitability.
astro-ph.EP · 210 papersActivity and composition of periodic comets 67P/Churyumov-Gerasimenko and 103P/Hartley 2 at two different perihelion passages
This study compares the activity and chemical composition of comets 67P and 103P across multiple perihelion passages, revealing varied activity trends but stable dust properties and chemical makeup.
Mitigating stellar radial velocity jitter using orthogonal activity indices and a time-aware neural network
A new time-aware neural network (CANSTAR) uses orthogonal activity indices to mitigate stellar radial velocity jitter, improving exoplanet detection.
Beyond the $α$ model: scaling the wind-driven accretion rate in protoplanetary disks using systematic non-ideal magnetohydrodynamical simulations
This paper introduces the SBD scheme for MHD simulations to derive systematic scaling laws for wind-driven accretion rates in protoplanetary disks.
Modeling Volcanic Plume Heights Across Exoplanet Atmospheres: Insights from TRAPPIST-1
This paper models volcanic plume heights on exoplanets, adapting a 1D plume model to predict volatile injection and detectability in diverse atmospheres.
Impact of Climate States and Seasons on Future Exo-Earth Observations
This paper shows how exoplanet climate states and seasonal variations impact the detectability of atmospheric features and biosignatures in future observations.
Orbital motion and dynamical mass of the complex periodic variable binary system 2MASS J05082729-2101444
VLBA and spectroscopic data reveal the orbit and dynamical mass of the M-dwarf binary 2MASS J05082729-2101444.
TOI-159 b: an eccentric hot-Jupiter planet around a young, pulsating $γ$ Doradus star
TOI-159 b is an eccentric hot Jupiter orbiting a young, pulsating star, making it the hottest and most eccentric hot Jupiter found around such a star.
A public dataset of Ariel simulated observations for developing exoplanetary atmosphere data reduction pipelines
Ariel mission's public simulated dataset aids development and benchmarking of exoplanet atmosphere data reduction pipelines.
The ESO SupJup Survey. X. A carbon isotope contrast in the young ROXs 12 system
Young ROXs 12 system shows a measurable carbon isotope contrast between its M0 star and L0 companion, providing clues for substellar formation.
COCONUT: Toward practical time-evolving Sun-to-Earth magnetohydrodynamic modeling
COCONUT is a new, efficient, single time-evolving MHD model that simulates Sun-to-Earth conditions, improving accuracy and simplifying the modeling pipeline.
The ALMA survey to Resolve exoKuiper belt Substructures (ARKS) XI: Gas-dust interactions and radial offsets between micron and millimetre-sized grains
This paper uses ALMA ARKS data and simulations to show gas-dust interactions explain radial offsets between small and large dust grains in debris disks.
Wave interference as the origin of the cyclic magnetorotational dynamo in accretion disks: insights from weakly nonlinear theory and local shearing box simulations
Wave interference between MRI eigenfrequencies is identified as the origin of long-period cyclic magnetic field reversals in accretion disk dynamos.
Characterizing the bolometric-photoevaporative transition in young sub-Neptunes with radiation-hydrodynamic simulations
This paper characterizes the transition between core-powered and photoevaporative atmospheric escape in young sub-Neptunes using radiation-hydrodynamic simulations.
Astrochemical Inheritance of Terrestrial Planets Water from Local Wet Silicates
This paper proposes that terrestrial planets acquired their water from local wet silicates, challenging the need for outer Solar System delivery.
Mean tropical year length at arbitrary ecliptic longitude
This paper calculates mean tropical year lengths at eight specific ecliptic longitudes to help tune calendar leap rules, validating results.
JWST unveils a high mean molecular weight atmosphere for mini-Neptune TOI-1130b: Evidence for formation beyond the water ice line
JWST observations of mini-Neptune TOI-1130b reveal a high mean molecular weight atmosphere, suggesting it formed beyond the water ice line.
On the Dust Substructures Triggered by Two Super-Earths Migrating in Low-viscosity Disks
This paper investigates dust substructures formed by two migrating super-Earths in low-viscosity disks, identifying regions favorable for planetesimal formation.
The Days Drag On on WASP-121 b: Interpreting its NIRISS Spectroscopic Phase Curve with General Circulation Models
This paper interprets JWST/NIRISS data for ultra-hot Jupiter WASP-121 b using 3D models, revealing model-data tension, atmospheric drag, and nightside clouds.
The atmosphere of the warm Neptune GJ 436 b probed with ESPRESSO
ESPRESSO observations of warm Neptune GJ 436 b reveal no strong atmospheric features, consistent with a featureless optical spectrum.
Statistically Significant Linear Alignments Among High-Confidence Transient Candidates on POSS-I Photographic Plates
Statistically significant linear alignments and anomalous clustering of high-confidence transient candidates were found on pre-Sputnik photographic plates.
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