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The DESC stellarator optimization code takes advantage of advanced numerical methods to search the full parameter space much faster than conventional tools. Only a single equilibrium solution is needed at each optimization step thanks to…

Plasma Physics · Physics 2023-04-19 Daniel Dudt , Rory Conlin , Dario Panici , Egemen Kolemen

Aims: We present a new upgraded version of ARES. The new version includes a series of interesting new features such as automatic radial velocity correction, a fully automatic continuum determination, and an estimation of the errors for the…

Instrumentation and Methods for Astrophysics · Physics 2015-05-06 S. G. Sousa , N. C. Santos , V. Adibekyan , E. Delgado-Mena , G. Israelian

We perform high fidelity simulations of a wide-field telescopic survey searching for Near-Earth Objects (NEO) larger than 140\,m, focusing on the observational and detection model, detection efficiency and accuracy. As a test survey we…

Earth and Planetary Astrophysics · Physics 2017-06-30 Peter Vereš , Steven R. Chesley

Code editing is a frequent yet cognitively demanding task in software development. Existing AI-powered tools often disrupt developer flow by requiring explicit natural language instructions and suffer from high latency, limiting real-world…

Software Engineering · Computer Science 2026-04-02 Xinfang Chen , Siyang Xiao , Xianying Zhu , Junhong Xie , Ming Liang , Dajun Chen , Wei Jiang , Yong Li , Peng Di

The Nearby Evolved Stars Survey (NESS) is a volume-complete sample of $\sim$850 Galactic evolved stars within 3\,kpc at (sub-)mm wavelengths, observed in the CO $J = $ (2$-$1) and (3$-$2) rotational lines, and the sub-mm continuum, using…

In this paper, the minimum orbit intersection distances (MOIDs) of near-Earth asteroids (NEAs) over the next 200 years were computed and analyzed in detail. It was shown that the MOID of a NEA relative to the Earth-Moon barycenter (EMB) is…

Earth and Planetary Astrophysics · Physics 2025-05-06 Shoucun Hu , Yuanyuan Chen , Xinran Li , Xiuhai Wang , Xuefeng Wang

We present the results of the first-ever visible spectroscopic survey fully dedicated to the small (absolute magnitude H>20) near-Earth asteroid (NEA) population. Observations have been performed at the New Technology Telescope (NTT) of the…

Gaia DR4 epoch astrometry will enable the detection of thousands of exoplanets through astrometric motion. Here, we present a composite catalog and modeling framework that extracts the maximum information from existing Hipparcos and Gaia…

While Transiting Exoplanet Survey Satellite (TESS) covers a considerable area of the sky during routine observations and the pointing schedule is easy to follow, it is not obvious to retrieve the current and/or predicted visibility of a…

Instrumentation and Methods for Astrophysics · Physics 2020-12-03 András Pál

Hierarchical text classification (HTC) and extreme multi-label classification (XML) tasks face compounded challenges from complex label interdependencies, data sparsity, and extreme output dimensions. These challenges are exemplified in the…

Artificial Intelligence · Computer Science 2026-03-04 Lorenzo Molfetta , Alessio Cocchieri , Stefano Fantazzini , Giacomo Frisoni , Luca Ragazzi , Gianluca Moro

We report follow-up observations of 477 program Near-Earth Asteroids (NEAs) using nine telescopes of the EURONEAR network having apertures between 0.3 and 4.2 m. Adding these NEAs to our previous results we now count 739 program NEAs…

In the context of measuring structure and morphology of intermediate redshift galaxies with recent HST/ACS surveys, we tune, test, and compare two widely used fitting codes (GALFIT and GIM2D) for fitting single-component Sersic models to…

NIMASTEP is a dedicated numerical software developed by us, which allows one to integrate the osculating motion (using cartesian coordinates) in a Newtonian approach of an object considered as a point-mass orbiting a homogeneous central…

Earth and Planetary Astrophysics · Physics 2012-04-09 N. Delsate , A. Compère

We present significantly improved proper motion measurements of the Milky Way's central stellar cluster. These improvements are made possible by refining our astrometric reference frame with a new geometric optical distortion model for the…

Astrophysics of Galaxies · Physics 2015-05-20 Sylvana Yelda , Jessica R. Lu , Andrea M. Ghez , Will Clarkson , Jay Anderson , Tuan Do , Keith Matthews

In the preparation for ESA's Euclid mission and the large amount of data it will produce, we train deep convolutional neural networks on Euclid simulations classify solar system objects from other astronomical sources. Using transfer…

Instrumentation and Methods for Astrophysics · Physics 2019-03-15 Maggie Lieu , Luca Conversi , Bruno Altieri , Benoît Carry

Robust impact monitoring of near-Earth objects is an essential task of planetary defense. Current systems such as NASA's Sentry-II, the University of Pisa's CLOMON2, and ESA's Aegis have been highly successful, but independent approaches…

Earth and Planetary Astrophysics · Physics 2026-03-25 Dmitrii E. Vavilov , Daniel Hestroffer

Known for their efficiency in analyzing large data sets, machine learning classifiers are widely used in wide-field sky surveys. The upcoming Vera C. Rubin Observatory Legacy of Time and Space Survey (LSST) will generate millions of alerts…

Instrumentation and Methods for Astrophysics · Physics 2023-12-11 Xinyue Sheng , Matt Nicholl , Ken W. Smith , David R. Young , Roy D. Williams , Heloise F. Stevance , Stephen J. Smartt , Shubham Srivastav , Thomas Moore

The GSC-II is an all-sky database of objects derived from the uncompressed DSS that the STScI has created from the Palomar and UK Schmidt survey plates and made available to the community. Like its predecessor (GSC-I), the GSC-II was…

The Hubble Space Telescope (HST) NICMOS instrument has been used from 1997 to 2008 to perform coronagraphic observations of about 400 targets. Most of them were part of surveys looking for substellar companions or resolved circumstellar…

Earth and Planetary Astrophysics · Physics 2018-04-25 J. B. Hagan , E. Choquet , R. Soummer , A. Vigan

Earth Observation (EO) has traditionally involved the transmission of a large volume of raw data to map the Earth surface. This results in congestion to the satellite network and delays in the availability of the results, invalidating the…

Networking and Internet Architecture · Computer Science 2024-10-11 Antonio M. Mercado-Martínez , Beatriz Soret , Antonio Jurado-Navas