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Surface temperature distribution is crucial for thermal property-based studies about irregular asteroids in our Solar System. While direct numerical simulations could model surface temperatures with high fidelity, they often take a…

Earth and Planetary Astrophysics · Physics 2024-11-06 Shunjing Zhao , Hanlun Lei , Xian Shi

New generation large-aperture telescopes, multi-object spectrographs, and large format detectors are making it possible to acquire very large samples of stellar spectra rapidly. In this context, traditional star-by-star spectroscopic…

The nature and physical properties of asteroids, in particular those orbiting in the near-Earth space, are of scientific interest and practical importance. Exoplanet surveys can be excellent resources to detect asteroids, both already known…

Earth and Planetary Astrophysics · Physics 2020-01-08 M. Cortés-Contreras , F. M. Jiménez-Esteban , M. Mahlke , E. Solano , J. Ďurech , S. Barceló Forteza , C. Rodrigo , A. Velasco , B. Carry

Upcoming direct-imaging missions like the Habitable Worlds Observatory (HWO) aim to characterize dozens of Earth-like exoplanets by capturing their reflected-light spectra. However, traditional atmospheric retrieval frameworks are too…

Earth and Planetary Astrophysics · Physics 2025-08-04 Sarah G. A. Barbosa , Raissa Estrela , Paulo C. F. da Silva Filho , Daniel B. de Freitas

A deep neural network (DNN) model consisting of two hidden layers was proposed for predicting the immediate environments of specific atoms based on X-ray absorption near-edge spectra (XANES). The output layer of the DNN can be adjusted to…

Computational Physics · Physics 2019-05-13 Liang Li , Mindren Lu , Maria K. Y. Chan

While convolutional neural networks have shown a tremendous impact on various computer vision tasks, they generally demonstrate limitations in explicitly modeling long-range dependencies due to the intrinsic locality of the convolution…

Computer Vision and Pattern Recognition · Computer Science 2021-08-06 Guanglei Yang , Hao Tang , Mingli Ding , Nicu Sebe , Elisa Ricci

This paper presents a novel attention-based neural network for structured reconstruction, which takes a 2D raster image as an input and reconstructs a planar graph depicting an underlying geometric structure. The approach detects corners…

Computer Vision and Pattern Recognition · Computer Science 2022-06-22 Jiacheng Chen , Yiming Qian , Yasutaka Furukawa

Transneptunian objects (TNOs) are a source of invaluable information to access the history and evolution of the outer solar system. However, observing these faint objects is a difficult task. As a consequence, important properties such as…

Automated asteroid detection routines set requirements on the number of detections, signal-to-noise ratio, and the linearity of the expected motion in order to balance completeness, reliability, and time delay after data acquisition when…

Earth and Planetary Astrophysics · Physics 2018-08-08 Joseph R. Masiero , E. Redwing , A. K. Mainzer , J. M. Bauer , R. M. Cutri , T. Grav , E. Kramer , C. R. Nugent , S. Sonnett , E. L. Wright

Recently, the attention-enhanced multi-layer encoder, such as Transformer, has been extensively studied in Machine Reading Comprehension (MRC). To predict the answer, it is common practice to employ a predictor to draw information only from…

Computation and Language · Computer Science 2021-02-03 Nuo Chen , Fenglin Liu , Chenyu You , Peilin Zhou , Yuexian Zou

While proper orbital elements are currently available for more than 1 million asteroids, taxonomical information is still lagging behind. Surveys like SDSS-MOC4 provided preliminary information for more than 100,000 objects, but many…

Earth and Planetary Astrophysics · Physics 2023-11-08 Valerio Carruba , Júlio I. B. Camargo , Safwan Aljbaae , 51 co-authors , DES Collaboration

Precisely classifying earthquake types is crucial for elucidating the relationship between volcanic earthquakes and volcanic activity. However, traditional methods rely on subjective human judgment, which requires considerable time and…

Geophysics · Physics 2025-07-22 Y. Suzuki , Y. Yukutake , T. Ohminato , M. Yamasaki , Ahyi Kim

Supervised classification of temporal sequences of astronomical images into meaningful transient astrophysical phenomena has been considered a hard problem because it requires the intervention of human experts. The classifier uses the…

Instrumentation and Methods for Astrophysics · Physics 2020-10-07 Catalina Gómez , Mauricio Neira , Marcela Hernández Hoyos , Pablo Arbeláez , Jaime E. Forero-Romero

This study introduces a novel approach that integrates the magnetic field data correction from the Tianwen-1 Mars mission with a neural network architecture constrained by physical principles derived from Maxwell's equation equations. By…

Space Physics · Physics 2025-03-13 Beibei Li , Yutian Chi , Yuming Wang

We report 491 new near-infrared spectroscopic measurements of 420 near-Earth objects (NEOs) collected on the NASA InfraRed Telescope Facility (IRTF) as part of the MIT-Hawaii NEO Spectroscopic Survey (MITHNEOS). These measurements were…

Machine learning models in astrophysics are often limited in scope and cannot adapt to data from new instruments or tasks. We introduce SpectraFM, a Transformer-based foundation model architecture that can be pre-trained on stellar spectra…

Instrumentation and Methods for Astrophysics · Physics 2024-11-08 Nolan Koblischke , Jo Bovy

Strain engineering provides a powerful route for tuning the electronic properties of two-dimensional (2D) materials, but exploring the full multidimensional strain space with density functional theory (DFT) is computationally prohibitive…

Materials Science · Physics 2026-03-23 Haoran Ma , Yuchen Zheng , Leining Zhang , Xiaofei Chen , Dan Wang

We present a novel neural network architecture using self-attention, the Wavefunction Transformer (Psiformer), which can be used as an approximation (or Ansatz) for solving the many-electron Schr\"odinger equation, the fundamental equation…

Chemical Physics · Physics 2023-04-20 Ingrid von Glehn , James S. Spencer , David Pfau

We aim to provide a taxonomic classification for asteroids observed by VISTA-VHS survey. We derive a method for assigning a compositional type to an object based on its (Y-J), (J-Ks), and (H-Ks) colors. We present a taxonomic classification…

Earth and Planetary Astrophysics · Physics 2018-09-12 M. Popescu , J. Licandro , J. M. Carvano , R. Stoicescu , J. de Leon , D. Morate , I. L. Boaca , C. P. Cristescu
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