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Where do cosmic X-rays come from? Every new unidentified X-ray source could potentially revolutionize our understanding of the universe. The international collaborative astronomy project EXTraS aimed at automatically classifying new sources…

Instrumentation and Methods for Astrophysics · Physics 2021-01-11 Annika Kreikenbohm

Modern galaxy cluster science is a multi-wavelength endeavor with cornerstones provided by X-ray, optical/IR, mm, and radio measurements. In combination, these observations enable the construction of large, clean, complete cluster catalogs,…

Whilst astronomy as a science is historically founded on observations at optical wavelengths, studying the Universe in other bands has yielded remarkable discoveries, from pulsars in the radio, signatures of the Big Bang at submm…

For centuries, the rich nocturnal environment of the starry sky could be modelled only by analogue tools such as paper planispheres, atlases, globes and numerical tables. The immersive sky simulator of the twentieth century, the…

Instrumentation and Methods for Astrophysics · Physics 2021-04-05 Georg Zotti , Susanne M Hoffmann , Alexander Wolf , Fabien Chéreau , Guillaume Chéreau

The advent of the digital age has led to a rise in different types of data with every passing day. In fact, it is expected that half of the total data will be on the cloud by 2016. This data is complex and needs to be stored, processed and…

Distributed, Parallel, and Cluster Computing · Computer Science 2015-08-20 Samiya Khan , Kashish Ara Shakil , Mansaf Alam

We describe briefly the Palomar-Quest (PQ) digital synoptic sky survey, including its parameters, data processing, status, and plans. Exploration of the time domain is now the central scientific and technological focus of the survey. To…

Policy Brief on "Global Data in Astronomy: Challenges and Opportunities", distilled from the corresponding panel that was part of the discussions during S20 Policy Webinar on Astroinformatics for Sustainable Development held on 6-7 July…

Instrumentation and Methods for Astrophysics · Physics 2024-02-21 Renee Hložek , Chenzhou Cui , Mark Allen , Patricia Whitelock , Jess McIver , Giuseppe Longo , Christopher Fluke , Ajit Kembhavi , Pranav Sharma , Ashish Mahabal

Combining the results of different search engines in order to improve upon their performance has been the subject of many research papers. This has become known as the "Data Fusion" task, and has great promise in dealing with the vast…

Information Retrieval · Computer Science 2018-02-13 Weinan Huang , Junyi Chen , Lei Meng , David Lillis

New and forthcoming deep-wide surveys, from instruments like the HSC, LSST and EUCLID, are poised to revolutionize our understanding of galaxy evolution, by revealing aspects of galaxies that are largely invisible in past wide-area…

Astrophysics of Galaxies · Physics 2020-01-08 Sugata Kaviraj

This paper outlines some of the possible advancements for the technosignatures searches using the new methods currently rapidly developing in computer science, such as machine learning and deep learning. It also showcases a couple of case…

Instrumentation and Methods for Astrophysics · Physics 2019-03-21 Anamaria Berea , Steve Croft , Daniel Angerhausen

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 presents some unusual challenges: the data are…

Instrumentation and Methods for Astrophysics · Physics 2016-11-17 S. G. Djorgovski , A. A. Mahabal , C. Donalek , M. J. Graham , A. J. Drake , B. Moghaddam , M. Turmon

Upcoming and future astronomy research facilities will systematically generate terabyte-sized data sets moving astronomy into the Petascale data era. While such facilities will provide astronomers with unprecedented levels of accuracy and…

Instrumentation and Methods for Astrophysics · Physics 2011-11-30 A. H. Hassan , C. J. Fluke , D. G. Barnes

We review the relatively new, internet-enabled, and rapidly-evolving field of citizen science, focusing on research projects in stellar, extragalactic and solar system astronomy that have benefited from the participation of members of the…

Instrumentation and Methods for Astrophysics · Physics 2015-09-23 Philip J. Marshall , Chris J. Lintott , Leigh N. Fletcher

I review progress in the past few years in studying the large-scale structure of the universe through redshift surveys of galaxies. Of the many statistical methods used to describe the galaxy distribution, I concentrate here on the power…

Astrophysics · Physics 2007-05-23 Michael A. Strauss

The large-scale surveys such as PTF, CRTS and Pan-STARRS-1 that have emerged within the past 5 years or so employ digital databases and modern analysis tools to accentuate research into Time Domain Astronomy (TDA). Preparations are underway…

Instrumentation and Methods for Astrophysics · Physics 2015-06-12 Jonathan Grindlay , Sumin Tang , Edward Los , Mathieu Servillat

Science is becoming very data intensive1. Today's astronomy datasets with tens of millions of galaxies already present substantial challenges for data mining. In less than 10 years the catalogs are expected to grow to billions of objects,…

Databases · Computer Science 2009-11-07 Alexander S. Szalay , Jim Gray , Jan vandenBerg

After several years of intensive technological development Virtual Observatory resources have reached a level of maturity sufficient for their routine scientific exploitation. The Virtual Observatory is starting to be used by astronomers in…

Instrumentation and Methods for Astrophysics · Physics 2009-03-04 Igor Chilingarian

Since the late 1970's, redshift surveys have been vital for progress in understanding large-scale structure in the Universe. The original CfA redshift survey collected spectra of 20-30 galaxies per clear night on a 1.5 meter telescope; over…

Astrophysics · Physics 2009-11-06 Marc Davis , Jeffrey Newman

The changing heavens have played a central role in the scientific effort of astronomers for centuries. Galileo's synoptic observations of the moons of Jupiter and the phases of Venus starting in 1610, provided strong refutation of Ptolemaic…

Instrumentation and Methods for Astrophysics · Physics 2015-03-19 Joshua S. Bloom , Joseph W. Richards