Data challenges for the Gaia Science Alerts System

Burgon, Ross; Wyrzykowski, Lukasz and Hodgkin, Simon (2010). Data challenges for the Gaia Science Alerts System. In: Astronomical Data Analysis Software and Systems XX ASP Conference Series, 7-11 Nov 2010.

URL: http://adass2010.cfa.harvard.edu/

Abstract

Gaia is a European Space Agency (ESA) cornerstone mission due to launch late 2012. Its mission is to precisely survey over one billion sources to create an accurate three-dimensional map of the sky. The Gaia Science Alerts (GSA) System, based in the Institute of Astronomy (IoA) at Cambridge University in the UK, aims to use the daily data stream from Gaia to look for and report on transient events both from within and beyond our galaxy. The data stream will be processed in near real-time in order to provide rapid alerts to facilitate ground-based follow-up. This paper provides an overview of the Gaia Science Alerts System and highlights the data processing and storage challenges from data ingestion and event-detection to event classification and the eventual publication mechanism.

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