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The Transiting Exoplanet Survey Satellite (TESS) will be conducting a nearly all-sky photometric survey over two years, with a core mission goal to discover small transiting exoplanets orbiting nearby bright stars. It will obtain 30-minute…

We present results from a new pipeline custom-designed to search for faint, undiscovered solar system bodies using full-frame image data from the NASA Transiting Exoplanet Survey Satellite (TESS) mission. This pipeline removes the baseline…

Earth and Planetary Astrophysics · Physics 2020-11-25 Malena Rice , Greg Laughlin

In this work, we explore several ways to detect possible exocomet transits in the TESS (The Transiting Exoplanet Survey Satellite) light curves. The first one has been presented in our previous work, a machine learning approach based on the…

Earth and Planetary Astrophysics · Physics 2026-02-04 D. V. Dobrycheva , I. V. Kulyk , D. R. Karakuts , M. Yu. Vasylenko , Ya. V. Pavlenko , O. S. Shubina , I. V. Luk'yanyk

High-quality saliency maps are essential in several machine learning application areas including explainable AI and weakly supervised object detection and segmentation. Many techniques have been developed to generate better saliency using…

Computer Vision and Pattern Recognition · Computer Science 2022-07-06 Osman Tursun , Simon Denman , Sridha Sridharan , Clinton Fookes

Photometric missions such as Kepler and TESS have generated millions of light curves covering almost the entire sky, offering unprecedented opportunities to study stellar variability and advance our understanding of the Universe. In this…

Instrumentation and Methods for Astrophysics · Physics 2026-04-10 Paul F. X. Gregory , Jeroen Audenaert , Mykyta Kliapets , Daniel Muthukrishna , Andrew Tkachenko , Marek Skarka , Marc Hon , George R. Ricker

We present PyWiFeS, a new Python-based data reduction pipeline for the Wide Field Spectrograph (WiFeS). PyWiFeS consists of a series of core data processing routines built on standard scientific Python packages commonly used in astronomical…

Instrumentation and Methods for Astrophysics · Physics 2013-11-13 Michael J. Childress , Frédéric P. A. Vogt , Jon Nielsen , Robert G. Sharp

The last 15 years have seen a surge of new multi-chip optical and near-IR imagers. While some of them are accompanied by specific reduction pipelines, user-friendly and generic reduction tools are uncommon. In this paper I introduce THELI,…

Instrumentation and Methods for Astrophysics · Physics 2013-11-11 Mischa Schirmer

PypeIt is a Python package for semi-automated reduction of astronomical, spectroscopic data. Its algorithms build on decades-long development of previous data reduction pipelines by the developers (Bernstein, Burles, & Prochaska, 2015;…

Instrumentation and Methods for Astrophysics · Physics 2020-05-20 J. Xavier Prochaska , Joseph F. Hennawi , Kyle B. Westfall , Ryan J. Cooke , Feige Wang , Tiffany Hsyu , Frederick B. Davies , Emanuele Paolo Farina

The low surface brightness Universe holds clues to the first formation of galaxies. Specifically, the shape and morphology of local stellar haloes have encoded in them the early formation history of their parent galaxies. Early progenitor…

Instrumentation and Methods for Astrophysics · Physics 2018-06-13 Benne W. Holwerda

Transition-edge sensors (TESs) are capable of highly accurate single particle energy measurement. TESs have been used for a wide range of photon detection applications, particularly in astronomy, but very little consideration has been given…

Instrumentation and Detectors · Physics 2023-05-11 K. M. Patel , S. Withington , C. N. Thomas , A. G. Shard , D. J. Goldie

NASA's Transiting Exoplanet Survey Satellite (TESS) has begun a two-year survey of most of the sky, which will include lightcurves for thousands of solar-like oscillators sampled at a cadence of two minutes. To prepare for this steady…

Solar and Stellar Astrophysics · Physics 2018-12-26 Warrick H. Ball , William J. Chaplin , Mathew Schofield , Andrea Miglio , Diego Bossini , Guy R. Davies , Léo Girardi

relentless is an open-source Python package that enables the optimization of objective functions computed using molecular dynamics simulations. It has a high-level, extensible interface for model parametrization; setting up, running, and…

Soft Condensed Matter · Physics 2024-08-07 Adithya N Sreenivasan , C. Levi Petix , Zachary M. Sherman , Michael P. Howard

The Transiting Exoplanet Survey Satellite (TESS) is surveying a large fraction of the sky, generating a vast database of photometric time series data that requires thorough analysis to identify exoplanetary transit signals. Automated…

Earth and Planetary Astrophysics · Physics 2025-04-15 Helem Salinas , Rafael Brahm , Greg Olmschenk , Richard K. Barry , Karim Pichara , Stela Ishitani Silva , Vladimir Araujo

We present a simple web-based tool, STDWeb, for a quick-look photometry and transient detection in astronomical images. It tries to implement a self-consistent and mostly automatic data analysis workflow that would work on any image…

Instrumentation and Methods for Astrophysics · Physics 2025-03-21 Sergey Karpov

The High Cadence Transient Survey (HiTS) aims to discover and study transient objects with characteristic timescales between hours and days, such as pulsating, eclipsing and exploding stars. This survey represents a unique laboratory to…

As the NASA Transiting Exoplanet Survey Satellite (TESS) fulfills its primary mission it is executing an unprecedented all-sky survey with the potential to discover distant planets in our own solar system, as well as hundreds of…

Earth and Planetary Astrophysics · Physics 2019-10-16 Matthew J. Holman , Matthew J. Payne , András Pál

SHallow REcurrent Decoders (SHRED) provide a deep learning strategy for modeling high-dimensional dynamical systems and/or spatiotemporal data from dynamical system snapshot observations. PySHRED is a Python package that implements SHRED…

Machine Learning · Computer Science 2025-07-29 David Ye , Jan Williams , Mars Gao , Stefano Riva , Matteo Tomasetto , David Zoro , J. Nathan Kutz

In modern-day astronomy, near-infrared, optical, and ultraviolet spectroscopy are indispensable for studying a wide range of phenomena, from measuring black hole masses to analyzing chemical abundances in stellar atmospheres. However,…

Instrumentation and Methods for Astrophysics · Physics 2025-07-21 Raniere de Menezes , Francesco Massaro , Michela Negro , Claudia M. Raiteri , Harold Peña-Herazo , Jose A. Acosta-Pulido

Given its large plate scale of 21" / pixel, analyses of data from the TESS space telescope must be wary of source confusion from blended light curves, which creates the potential to attribute observed photometric variability to the wrong…

Solar and Stellar Astrophysics · Physics 2023-05-24 May G. Pedersen , Keaton J. Bell