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Exploration of time domain is now a vibrant area of research in astronomy, driven by the advent of digital synoptic sky surveys. While panoramic surveys can detect variable or transient events, typically some follow-up observations are…

Lasair is the UK Community Broker for transient alerts from the Legacy Survey of Space and Time (LSST) from the Vera C. Rubin Observatory. We explain the system's capabilities, how users can achieve their scientific goals, and how Lasair is…

Instrumentation and Methods for Astrophysics · Physics 2024-04-15 Roy D. Williams , Gareth P. Francis , Andy Lawrence , Terence M. Sloan , Stephen J. Smartt , Ken W. Smith , David R. Young

Characterizing the host galaxies of astrophysical transients is important to many areas of astrophysics, including constraining the progenitor systems of core-collapse supernovae, correcting Type Ia supernova distances, and…

Astronomy and astrophysics are witnessing dramatic increases in data volume as detectors, telescopes and computers become ever more powerful. During the last decade, sky surveys across the electromagnetic spectrum have collected hundreds of…

Instrumentation and Methods for Astrophysics · Physics 2014-11-20 Jacob T. VanderPlas , Andrew J. Connolly , Zeljko Ivezic , Alex Gray

For both investors and policymakers, forecasting the stock market is essential as it serves as an indicator of economic well-being. To this end, we harness the power of social media data, a rich source of public sentiment, to enhance the…

Machine Learning · Computer Science 2023-10-31 Shengkun Wang , YangXiao Bai , Kaiqun Fu , Linhan Wang , Chang-Tien Lu , Taoran Ji

Context. The ability to automatically select scientifically-important transient events from an alert stream of many such events, and to conduct follow-up observations in response, will become increasingly important in astronomy. With…

An automated, rapid classification of transient events detected in the modern synoptic sky surveys is essential for their scientific utility and effective follow-up using scarce resources. This problem will grow by orders of magnitude with…

Instrumentation and Methods for Astrophysics · Physics 2015-06-03 Ashish A. Mahabal , C. Donalek , S. G. Djorgovski , A. J. Drake , M. J. Graham , R. Williams , Y. Chen , B. Moghaddam , M. Turmon

This paper presents an online system that leverages social media data in real time to identify landslide-related information automatically using state-of-the-art artificial intelligence techniques. The designed system can (i) reduce the…

Computers and Society · Computer Science 2023-06-05 Ferda Ofli , Umair Qazi , Muhammad Imran , Julien Roch , Catherine Pennington , Vanessa Banks , Remy Bossu

We present the first public release of our generic neural network training algorithm, called SkyNet. This efficient and robust machine learning tool is able to train large and deep feed-forward neural networks, including autoencoders, for…

Instrumentation and Methods for Astrophysics · Physics 2015-06-17 Philip Graff , Farhan Feroz , Michael P. Hobson , Anthony N. Lasenby

Just as the astronomical "Time Domain" is a catch-phrase for a diverse group of different science objectives involving time-varying phenomena in all astrophysical regimes from the solar system to cosmological scales, so the "Virtual…

Instrumentation and Methods for Astrophysics · Physics 2015-06-03 Rob Seaman , Roy Williams , Matthew Graham , Tara Murphy

The next generation of telescopes such as the SKA and the Rubin Observatory will produce enormous data sets, requiring automated anomaly detection to enable scientific discovery. Here, we present an overview and friendly user guide to the…

Instrumentation and Methods for Astrophysics · Physics 2022-01-26 Michelle Lochner , Bruce A. Bassett

Machine Learning algorithms are good tools for both classification and prediction purposes. These algorithms can further be used for scientific discoveries from the enormous data being collected in our era. We present ways of discovering…

Instrumentation and Methods for Astrophysics · Physics 2021-02-26 Shraddha Surana , Yogesh Wadadekar , Divya Oberoi

Astrophysics and cosmology are rich with data. The advent of wide-area digital cameras on large aperture telescopes has led to ever more ambitious surveys of the sky. Data volumes of entire surveys a decade ago can now be acquired in a…

Instrumentation and Methods for Astrophysics · Physics 2017-04-18 Jan Kremer , Kristoffer Stensbo-Smidt , Fabian Gieseke , Kim Steenstrup Pedersen , Christian Igel

We present the progress of work to streamline and simplify the process of exoplanet observation by citizen scientists. International collaborations such as ExoClock and Exoplanet Watch enable citizen scientists to use small telescopes to…

Instrumentation and Methods for Astrophysics · Physics 2026-01-21 Oisín Creaner , Anna Preis , Cormac Ryan , Nika Gorchakova

The study of flaring astrophysical events in the multi-messenger approach requires instantaneous follow-up observations to better understand the nature of these events through complementary observational data. We present Astro-COLIBRI as a…

Instrumentation and Methods for Astrophysics · Physics 2023-01-31 P. Reichherzer , F. Schüssler , V. Lefranc , J. Becker Tjus , J. Mourier , A. K. Alkan

Software products nova.astrometry.net, SExtractor and Aladin are shown to be used for searching for transient phenomena in series of photometric images. An algorithm for taking into account atmospheric distortions introduced into images…

Instrumentation and Methods for Astrophysics · Physics 2018-03-26 V. V. Moskvin , A. A. Shlyapnikov

The rapid growth of imaging and spectroscopic surveys has intensified the need for efficient tools that support visual inspection, a practice that remains essential for tasks such as classification, catalog refinement, and validation of…

We present a machine learning based information retrieval system for astronomical observatories that tries to address user defined queries related to an instrument. In the modern instrumentation scenario where heterogeneous systems and…

Instrumentation and Methods for Astrophysics · Physics 2018-03-28 Nikhil Mukund , Saurabh Thakur , Sheelu Abraham , A. K. Aniyan , Sanjit Mitra , Ninan Sajeeth Philip , Kaustubh Vaghmare , D. P. Acharjya

This paper introduces a new mobile sensor scheduling problem, involving a single robot tasked with monitoring several events of interest that occur at different locations. Of particular interest is the monitoring of transient events that…

Robotics · Computer Science 2014-09-16 Jingjin Yu , Sertac Karaman , Daniela Rus

Recording a stellar occultation is one powerful method that gives direct information about the physical properties of the occulting solar system object. In order to obtain reliable and accurate results, simultaneous observations from…