VOEventNet: An Open Source of Transient Alerts for Astronomers.

Astronomy and Astrophysics – Astronomy

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Event based astronomy is acquiring an increasingly important role in astronomy as large time-domain surveys such as Palomar Transient Factory (PTF), Pan-STARRs, SkyMapper and Allan Telescope Array (ATA) surveys come online. These surveys are expected to discover thousands of transients each year ranging from near earth asteroids to distant SNe. Although the primary instruments for of these surveys are in place, in order to fully utilize these event discovery streams, automated alerting and follow-up is a necessity.
For the past two years the VOEventNet network has been globally distributing information about transient astronomical events using the VOEvent format, a Virtual Observatory standard. Events messages are openly distributed so that follow-up can utilize the most appropriate resources available in order to characterize the nature of the transients. Since its inception VOEventNet has broadcast more than 3500 SDSSSS Supernova candidates, 3300 GRB alert and follow-up notices from GCN, 700 OGLE microlensing event candidates, and 4300 newly discovered asteroid and optical transient candidates from the Palomar Quest survey. Additional transient event streams are expected this season including optical transients from the Catalina Sky Survey.
VOEventNet astronomical transient events streams are available to all astronomers via traditional HTML tables, RSS news-feeds, real-time publication (via Jabber and TCP), and Google Sky mashups. VOEventNet currently carries out optical transient event follow-up with the Palomar 60 and 200in (Caltech), Faulkes Telescopes North and South (LCOGTN), RAPTOR (LANL), and PARITEL (UCB; CfA).

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