Prépublication
· 2026 arXiv
EN
We characterize comet P/2026 N2, whose outer Main Belt orbit has $a=3.07$ au, $e=0.21$, and $i=2.25^\circ$, using optical observations, archival imaging, and dynamical integrations. Observations from the Legacy Survey of Space and Time (LSST) at NSF-DOE Vera C...
Bryce Bolin, Leo Alcorn et al.
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Prépublication
· 2026 arXiv
EN
NASA's Kepler mission found more systems with one transiting planet (``singles'') than expected from those with several (``multis''). This excess was first taken as evidence for a Kepler dichotomy -- a second population of intrinsically single or highly inclin...
Daniel A. Yahalomi, David Nesvorny et al.
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Prépublication
· 2026 arXiv
EN
The shape of an exoplanet encodes fundamental information about its internal structure. For close-in giant planets, strong stellar tidal forces induce measurable deformations that can be probed through high-precision photometry. These deformations are quantifi...
Vanesa Ramirez, Yamila Miguel et al.
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Prépublication
· 2026 arXiv
EN
A growing number of transiting exoplanets exhibit spectroscopic evidence that their leading and trailing limbs differ. Interpreting these observations is now the limiting step. The standard approach of fitting limb-resolved transit depths results in highly ant...
Sagnick Mukherjee, Luis Welbanks et al.
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Prépublication
· 2026 arXiv
EN
We present a homogeneous analysis of 268 confirmed and candidate transiting hot-Jupiter host stars with 4800K < Teff < 6200K. We combine high-resolution TRES spectra, Gaia, 2MASS and WISE photometry, and Gaia astrometry to determine these stars' Teff, log g, R...
Victoria DiTomasso, Samuel W. Yee et al.
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Prépublication
· 2026 arXiv
EN
Simulating chaotic planetary system evolution requires resolving small time-scales due to close encounters, scattering, collisions, and more. Simulations typically assign fixed timesteps to all particles, however, which is inefficient and wastes compute resour...
David M. Hernandez, Tenri Jinno et al.
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Prépublication
· 2026 arXiv
EN
Over 4 billion years, Earth's atmosphere has been transformed from a composition devoid of molecular oxygen (O$_2$) to one where O$_2$ is now 21% of our modern atmosphere by volume. With high quantities of O$_2$, an ozone (O$_3$) layer can form and partially s...
Akhil Kumar, Gregory J. Cooke
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Prépublication
· 2026 arXiv
EN
Jupiter's faint ring system contains micron- and submicron-sized dust whose dynamics are influenced by the planet's rapidly rotating magnetic field. Optical observations have established the morphology of the main ring and halo, but tenuous dust close to Jupit...
Wenyu Zhang, Hao Cao et al.
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Prépublication
· 2026 arXiv
EN
ALMA high-resolution surveys have so far focused mainly on large, bright protoplanetary disks, where substructures are routinely detected, leaving compact disks poorly characterized. Yet, the survival of millimeter emission in Class II sources implies that rad...
Pietro Curone, Gijs D. Mulders et al.
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Prépublication
· 2026 arXiv
EN
Aim. We try to understand the interaction of eccentricity tide and convection in icy satellites. Method. We use the numerical calculation of rotating convection with eccentricity tide in a spherical shell. Results. We have the following results. (1) Energy sca...
Jiachen Zheng, Xing Wei
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Prépublication
· 2026 arXiv
EN
Recent exoplanet surveys reveal a systematic trend in the mass ratios of giant planet pairs ($> 30 M_\oplus$). Although the $M_{outer}/M_{inner}$ is broadly centered near unity, it exhibits a dependence on orbital separation. Compact pairs tend to have compara...
Bixuan Zhao, Hui Zhang et al.
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Prépublication
· 2026 arXiv
EN
Artificial warming via engineered aerosols presents a novel pathway to bypass volatile scarcity on modern Mars. Utilizing the Generic Planetary Climate Model, we evaluate the physical feasibility of aerosol-induced terraforming over a full Martian year (669 So...
Tom N. Landefeld, Harald Lesch
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