Discovery, classiffcation, and scientiffc exploration of transient events from the Catalina Real-Time Transient Survey

A. A. Mahabal, S. G. Djorgovski, A. J. Drake, C. Donalek, M. J. Graham, R. D. Williams, Y. Chen, B. Moghaddam, M. Turmon, E. Beshore, S. Larson

Research output: Contribution to journalArticlepeer-review

58 Scopus citations

Abstract

Exploration of the time domain variable and transient objects and phenomena is rapidly becoming a vibrant research frontier, touching on essentially every field of astronomy and astrophysics, from the Solar system to cosmology. Time domain astronomy is being enabled by the advent of the new generation of synoptic sky surveys that cover large areas on the sky repeatedly, and generating massive data streams. Their scientific exploration poses many challenges, driven mainly by the need for a real-time discovery, classification, and follow-up of the interesting events. Here we describe the Catalina Real-Time Transient Survey (CRTS), that discovers and publishes transient events at optical wavelengths in real time, thus benefiting the entire community. We describe some of the scientific results to date, and then focus on the challenges of the automated classification and prioritization of transient events. CRTS represents a scientific and a technological testbed and precursor for the larger surveys in the future, including the Large Synoptic Survey Telescope (LSST) and the Square Kilometer Array (SKA).

Original languageEnglish (US)
Pages (from-to)387-408
Number of pages22
JournalBulletin of the Astronomical Society of India
Volume39
Issue number3
StatePublished - Sep 2011
Externally publishedYes

Keywords

  • Galaxies: active
  • Quasars
  • Stars: variables: other
  • Supernovae
  • Surveys

ASJC Scopus subject areas

  • Astronomy and Astrophysics

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