Astrophysics · Physics & Astronomy
Earth & Planetary Astrophysics
The newest papers in Earth & Planetary Astrophysics that ReadSearch has read, newest first. Each links to its own page, with its authors, date, where it was published and the original.
76 papers, from 9 September 2026 to 5 November 2026: 76 arXiv preprints.
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Newest papers
Mitigating scanning-induced systematics in Hipparcos and implications for Gaia astrometry
Space-based astrometric missions such as Hipparcos and Gaia rely on one-dimensional scanning strategies that couple the measured signals with both observation times and scanning geometry.The cold substellar frontier in JWST Extragalactic surveys: a robust parallax measurement yields the most distant known ultra-cold Y dwarf
We present an analysis of JADES-GS-BD-5, an extremely cold Y dwarf identified in the JADES/GOODS-South field.On the Detectability of Compact Multi-Planet Systems via Gravitational Microlensing
Compact multi-planet systems orbiting ultracool dwarfs, such as TRAPPIST-1, may be a major population of terrestrial worlds with poorly constrained demographics.Harmonic Angular Mapping Method for Binary Microlensing Grid Search
Searching for binary-lens microlensing solutions is computationally demanding because of the complex parameter space and the large number of trial models required.Galactic-Scale Distribution of 10Be and Its Implications for the Early Solar System 10Be/9Be
Meteoritic inclusions indicate that the early Solar System contained a substantial abundance of the short-lived radionuclide 10Be.Tracking the evolution of sub-Neptunes. I. Gyrochronology of planet hosting stars
Stellar age is fundamental for reconstructing planetary-system evolution but remains difficult to determine for unevolved main-sequence stars.Formation of Micron-sized Presolar Graphite Grains in Low-energy Supernova Ejecta
Presolar graphite grains with supernova isotopic signatures provide direct evidence that large graphite grains formed in supernova ejecta.A VLT/CRIRES+ study of helium 1.083$μ$m absorption features towards the inner Orion Nebula
JWST NIRCam F115W observations towards the inner Orion Nebula revealed a diverse array of previously unknown dark features.The Korean Space Telescope (KST): A Dedicated Space Observatory for the Dark Universe
The Korean Space Telescope (KST) is a next-generation 1.4-meter wide-field space observatory, a dedicated probe of the dark sector.PyMsOfa 2.0: A Pure-Python Implementation of the IAU Standards of Fundamental Astronomy Service
Astrometric calculations require authoritative algorithms so that every result is correct and reproducible.Nongravitational Motion of 3I/ATLAS Far from the Sun: Robust Detection, Weak Constraints on the Activity Law
3I/ATLAS provides an unprecedented astrometric data set for studying nongravitational (NG) effects in an interstellar object, but existing orbital solutions depend strongly on assumptions regarding…JWST/MIRI Observations of Amorphous Silicates in Interstellar Comet 3I/ATLAS
We present JWST/MIRI Low Resolution Spectroscopy (LRS) of 3I/ATLAS obtained post-perihelion at a heliocentric distance of 2.21 au.Distilling neural networks into equations to predict planetary instability
The problem of predicting when a multi-planet system will become dynamically unstable has defied analytical progress over the past three hundred years.Post-fragmentation Morphological and Broadband Color Evolution of C/2025 K1 (ATLAS)
Comet C/2025 K1 (ATLAS) underwent major fragmentation after its 2025 October 8 perihelion passage at q ~ 0.33 au.Partial Fragmentation of Comet C/2025 K1 (ATLAS)
We present time-series observations of the long period comet C/2025 K1 (ATLAS) obtained in 2025-2026, bracketing the comet's fragmentation in early November 2025.On the Evolution of Circumstellar Disks Modified by the Presence of a Binary
Stars form within circumstellar disks, and some binary stars develop circumbinary disks surrounding the pair.Comprehensive Visible and Near-infrared Keck and Gemini Monitoring and Characterization of Interstellar Comet 3I/ATLAS during its Encounter with the Solar System
We present 14 optical imaging and eight optical spectroscopic epochs of interstellar comet 3I/ATLAS from Keck/LRIS and Gemini/GMOS, two near-infrared (NIR) imaging epochs from Keck/MOSFIRE, and four…Phakoseismology: Asteroseismology of gravitationally microlensed stars
Asteroseismology relies on disk-integrated photometry or radial velocities, in which geometric cancellation suppresses modes of high spherical degree ($l\geq4$).Coevolution of Dust Growth and Gravitational Instability in Massive Protostellar Disks
Massive protostellar disks are expected to sustain high accretion rates through gravitational instability, while dust growth may modify their opacity, cooling efficiency, and stability.Solar System Surface Technosignatures: Searching for Signs of Artificial Design on Extraterrestrial Terrain
Artificial radio emissions have historically been a major focus of technosignature searches.