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Time-domain astronomy (TDA) is facing a paradigm shift caused by the exponential growth of the sample size, data complexity and data generation rates of new astronomical sky surveys. For example, the Large Synoptic Survey Telescope (LSST),…

Instrumentation and Methods for Astrophysics · Physics 2015-09-28 Pablo Huijse , Pablo A. Estevez , Pavlos Protopapas , Jose C. Principe , Pablo Zegers

The ngVLA is a new interferometric radio astronomy facility with transformative capabilities, being developed by the National Radio Astronomy Observatory. It combines two orders of magnitude in frequency coverage, over 1.2 - 116 GHz, with…

Instrumentation and Methods for Astrophysics · Physics 2025-04-22 T. K. Sridharan , S. Bhatnagar , P. Jagannathan , K. Golap

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 next-generation astronomy archives will cover most of the universe at fine resolution in many wavelengths. One of the first of these projects, the Sloan Digital Sky Survey (SDSS) will create a 5-wavelength catalog over 10,000 square…

Astrophysics · Physics 2010-04-23 Alexander S. Szalay , Peter Kunszt , Anirudha Thakar , Jim Gray , Don Slutz

Accurate visualization of double star astrometric data is essential for effective analysis and interpretation. This article presents a Python toolkit designed for astronomers who need to plot measurements from diverse sources -- historical,…

Instrumentation and Methods for Astrophysics · Physics 2025-02-21 Xinyue Wang

The Laser Interferometer Space Antenna (LISA), an ESA L-class mission, is designed to detect gravitational waves in the millihertz frequency band, with operations expected to begin in the next decade. LISA will enable studies of…

Instrumentation and Methods for Astrophysics · Physics 2024-12-31 Niklas Houba , Jean-Baptiste Bayle , Michele Vallisneri

Source-free domain adaptation (SFDA) is a challenging problem in object detection, where a pre-trained source model is adapted to a new target domain without using any source domain data for privacy and efficiency reasons. Most…

Computer Vision and Pattern Recognition · Computer Science 2024-09-26 Simon Varailhon , Masih Aminbeidokhti , Marco Pedersoli , Eric Granger

The ambitious scientific goals of SKA require a matching capability for calibration of instrumental and atmospheric propagation contributions as functions of time, frequency and position. The development of novel calibration algorithms to…

Instrumentation and Methods for Astrophysics · Physics 2022-02-01 María J. Rioja , Richard Dodson

In the last decade a new generation of telescopes and sensors has allowed the production of a very large amount of data and astronomy has become a data-rich science. New automatic methods largely based on machine learning are needed to cope…

Instrumentation and Methods for Astrophysics · Physics 2014-06-13 Stefano Cavuoti , Massimo Brescia , Giuseppe Longo

The increasing availability of high-quality optical and near-infrared spectroscopic data, as well as advances in modelling techniques, have greatly expanded the scientific potential of spectroscopic studies. However, the software tools…

Instrumentation and Methods for Astrophysics · Physics 2025-12-23 Daniele Gasparri , Lorenzo Morelli , Umberto Battino , Jairo Méndez Abreu , Adriana de Lorenzo-Cáceres

The Stratospheric Observatory for Infrared Astronomy (SOFIA) is an airborne astronomical observatory comprised of a 2.5-meter telescope mounted in the aft section of a Boeing 747SP aircraft. During routine operations, several instruments…

Instrumentation and Methods for Astrophysics · Physics 2014-12-18 R. Y. Shuping , R. Krzaczek , W. D. Vacca , M. Charcos-Llorens , W. T. Reach , R. Alles , M. Clarke , R. Melchiorri , J. Radomski , S. Shenoy , D. Sandel , E. B. Omelian

This work proposes a robust Partial Domain Adaptation (PDA) framework that mitigates the negative transfer problem by incorporating a robust target-supervision strategy. It leverages ensemble learning and includes diverse, complementary…

Computer Vision and Pattern Recognition · Computer Science 2023-09-11 Sandipan Choudhuri , Suli Adeniye , Arunabha Sen

A revolution in radio receiving technology is underway with the development of densely packed phased arrays for radio astronomy. This technology can provide an exceptionally large field of view, while at the same time sampling the sky with…

Instrumentation and Methods for Astrophysics · Physics 2016-03-03 S. A. Torchinsky , A. O. H. Olofsson , B. Censier , A. Karastergiou , M. Serylak , P. Renaud , C. Taffoureau

As members of the instrument team for the Advanced CCD Imaging Spectrometer (ACIS) on NASA's Chandra X-ray Observatory and as Chandra General Observers, we have developed a wide variety of data analysis methods that we believe are useful to…

High Energy Astrophysical Phenomena · Physics 2015-05-18 Patrick S. Broos , Leisa K. Townsley , Eric D. Feigelson , Konstantin V. Getman , Franz E. Bauer , Gordon P. Garmire

We present a description of the design and usage of a new synoptic pipeline and database model for time series photometry in the VISTA Data Flow System (VDFS). All UKIRT-WFCAM data and most of the VISTA main survey data will be processed…

Instrumentation and Methods for Astrophysics · Physics 2015-05-13 N. J. G. Cross , R. S. Collins , N. C. Hambly , R. P. Blake , M. A. Read , E. T. W. Sutorius , R. G. Mann , P. M. Williams

A digital data acquisition system (DDAS) has been implemented for the Low Energy Neutron Detector Array (LENDA). LENDA is an array of 24 BC-408 plastic-scintillator bars designed to measure low-energy neutrons with kinetic energies in the…

Instrumentation and Detectors · Physics 2016-02-17 S. Lipschutz , R. G. T. Zegers , J. Hill , S. N. Liddick , S. Noji , C. J. Prokop , M. Scott , M. Solt , C. Sullivan , J. Tompkins

We present a science-driven discovery portal for all the ESA Astronomy Missions called ESA Sky that allow users to explore the multi-wavelength sky and to seamlessly retrieve science-ready data in all ESA Astronomy mission archives from a…

The upcoming Square Kilometer Array (SKA) will set a new standard regarding data volume generated by an astronomical instrument, which is likely to challenge widely adopted data-analysis tools that scale inadequately with the data size. The…

Instrumentation and Methods for Astrophysics · Physics 2024-10-09 D. Cornu , P. Salomé , B. Semelin , A. Marchal , J. Freundlich , S. Aicardi , X. Lu , G. Sainton , F. Mertens , F. Combes , C. Tasse

The Boolardy Engineering Test Array is a 6 x 12 m dish interferometer and the prototype of the Australian Square Kilometre Array Pathfinder (ASKAP), equipped with the first generation of ASKAP's phased array feed (PAF) receivers. These…

Space-based gravitational wave (GW) observatories, such as the future Laser Interferometer Space Antenna (LISA), employ synthetic Time Delay Interferometry (TDI) to cancel the otherwise overwhelming laser frequency noise. The phase readouts…

General Relativity and Quantum Cosmology · Physics 2025-06-11 Neil J. Cornish , Tyson Littenberg