New Insights into Radio Transients from the Allen Telescope Array

Details New Insights into Radio Transients from the Allen Telescope Array New Insights into Radio Transients from the Allen Telescope Array

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21931903c&link_type=abstract

American Astronomical Society, AAS Meeting #219, #319.03

Astronomy and Astrophysics

Astronomy

Scientific paper

Much of what we know about radio transients comes from follow-up observations of objects discovered at shorter wavelengths. In the last five years, however, archival studies have begun to discover statistically significant numbers of radio transients. Now a new generation of radio telescopes, as well as upgrades to older instruments, has the potential to find large numbers of these events. A key factor in the design of the Allen Telescope Array (ATA) was its ability to efficiently survey large areas of sky to search for variable and transient radio sources. We present results from the ATA 20-cm Survey (ATATS), a pilot 11-epoch survey of 700 sq. deg of sky at 1.4 GHz, and the Pi GHz Sky Survey (PiGSS), a survey which includes a two-epoch wide field (5000 sq. deg.) component, and also a total of 450 repeated observations of four 10 sq. deg. deep fields. The ATA is opening new areas of rate -- sensitivity parameter space in the search for radio transients, and the lessons learned are valuable for the development of next generation surveys during the lead-up to the Square Kilometer Array.

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