Astrophysics · Physics & Astronomy
Instrumentation & Methods for Astrophysics
The newest papers in Instrumentation & Methods for Astrophysics that ReadSearch has read, newest first. Each links to its own page, with its authors, date, where it was published and the original.
202 papers, from 6 September 2026 to 5 November 2026: 202 arXiv preprints.
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Newest papers, page 8
Measuring the Age and Initial Composition of Interstellar Objects
Measuring the age and composition of interstellar objects is necessary to understand their origins.AEGIS: Differentiable Mars Climate Model with Neural Closures
General circulation models (GCMs) are the primary tool for simulating planetary atmospheres.Shared Geometry Is Not Shared Physics: A Layerwise Test of the Platonic Representation Hypothesis in Astronomy
In this paper we investigate whether geometrically aligned astronomical representations are also scientifically interchangeable.FlashSinkhorn 2: Block-Sparse Entropic Optimal Transport
Streaming GPU solvers for entropic optimal transport (EOT), such as FlashSinkhorn, avoid storing the dense kernel but still evaluate all $n\times m$ point pairs in every Sinkhorn iteration.ArxSP: A Python-Based Modular Application for the Reduction of Digitized Archival Spectra
We present a methodology for the reduction of archival spectral data together with the description of a newly developed Python-based software package featuring an interactive graphical interface.MADGRAV: a multilevel anomaly-detection pipeline for gravitational-wave searches applied to LIGO data
We present the results of \textbf{MADGRAV}, a deep-learning-based search for high-mass compact binary coalescences, applied to the data collected by the LIGO interferometers during the third…MAGiDiff: Sampling the Photospheric Vector Field from UV/EUV Filtergrams
Photospheric vector magnetic fields are foundational to modeling, understanding, and forecasting solar activity.Water enhances the formation of refractory sulfur in interstellar ices
Sulfur is the tenth most abundant element in space, yet it is strongly depleted in the gas phase of dense interstellar regions, suggesting sequestration in dust grain components that are difficult…XClass: An Automated Multiwavelength Machine-Learning Pipeline for Classification of Extragalactic X-ray Sources. I. Pipeline Description
Most X-ray sources detected in nearby galaxies by the Chandra X-ray Observatory lack astrophysical classifications.A Missing Latent, Not a Missing Simulator: Radius-Augmented Inference for Real JWST Retrieval
Amortized simulation-based inference (SBI), which is trained on radiative-transfer simulators, recovers exoplanet atmospheres accurately on synthetic James Webb Space Telescope (JWST) spectra but…Everything Everywhere All At Once: A Hierarchical Framework for Mapping Anisotropies in the Local Universe
We present a Bayesian hierarchical forward model for mapping the local luminosity-density field from heterogeneous redshift surveys.A Bayesian Inference Framework for Binary Lens Events Fully Incorporating Higher-Order Effects
Higher-order effects, such as microlensing parallax and lens orbital motion, are essential for characterizing the physical properties of microlensing planetary systems including their masses and…Morphological Identification of Dynamical Regimes in MHD Turbulence with ScaleAware-JEPA
The morphology of turbulent interstellar gas reflects the coupled action of turbulence, magnetic fields, and self-gravity, but density amplitude alone does not uniquely specify dynamical state.LUMA: A CNN for Strong Gravitational Lens Searches in Astronomical Imaging
We present LUMA, a convolutional neural network (CNN) pipeline for the automated detection of strong gravitational lenses in simulated astronomical imaging.Detecting Extragalactic Exoplanets With Fast Radio Burst Nanolensing
Fast Radio Bursts (FRBs) are spatially and temporally compact sources at cosmological distances.A Full-Sky SPHEREx Map of Integrated 3.3 and 3.4 μm PAH Emission
Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous in the interstellar medium and are among its smallest carbonaceous grains.Constraining exoplanet population parameters with Kepler and simulation-based inference
In the context of the rapidly growing field of galactic exoplanet population studies, we present an exoplanet simulator capable of generating synthetic populations for millions of stars in a few…Detecting HI Self-Absorption using Neural Networks
Cold atomic hydrogen plays a crucial role in the life cycle of interstellar gas.Gestalt: a meta-foundation model for astronomy
The Platonic Representation Hypothesis predicts that sufficiently scaled foundation models converge on a shared representation of the world.An X-ray Extremely wide-field Spectroscopic Surveyor (XESS, or "chess")
We propose an X-ray observatory, the X-ray Extremely wide-field Spectroscopic Surveyor (XESS, pronounced "Chess") to bring high energy resolution X-ray spectroscopy into the era of synoptic surveys…