SimpleTimeseries: Towards a Standard Representation of Astronomical Time-Series

Astronomy and Astrophysics – Astrophysics

Scientific paper

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Scientific paper

Centuries of astrophysical data will soon be eclipsed by the unprecedented number of novel events regularly captured by large scale synoptic surveys. In the past, a stately accumulation of data could await inclusion in catalogs. More recently, digital catalogs have been placed on websites, or forwarded in e-mails. Fully exploiting the science opportunities of this new era will require much more rapid and standardized data exchange. With abundant novel sources to choose from, the limited followup resources available will need regularized data formats to help in decision making, whether the ultimate decisions lie with a human or a machine. The Berkeley Transients Classification Pipeline (TCP) has developed an XML based time-series format to exchange data within the context of the Palomar Transients Factory (PTF). The benefit of a standard time-series representation lies in promulgating it beyond just one collaboration and so we are publicly releasing the format, SimpleTimeseries. It is also slated to describe time-series within the the Virtual Observatory's upcoming VOEvent 2.0 specification. An XML based format allows easy processing by both machines and humans. We have put together examples and documentation which show the flexibilty of SimpleTimeseries on dotastro.org, where you can also find the XML schema, and public light curves in the new format.

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