Mathematics – Logic
Scientific paper
Jan 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21547012c&link_type=abstract
American Astronomical Society, AAS Meeting #215, #470.12; Bulletin of the American Astronomical Society, Vol. 42, p.515
Mathematics
Logic
3
Scientific paper
The Australian Square Kilometre Array Pathfinder (ASKAP) is a next-generation radio telescope currently under construction in Western Australia. ASKAP will consist of an array of 36 12-meter antennas, each equipped with a phased-array feed. Its large instantaneous field-of-view will allow ASKAP to survey the whole sky much faster than is possible with existing radio telescopes, and its unique combination of survey speed and sensitivity will open up novel ways of exploring the radio sky. In the first five years of observations (starting in 2013), at least 75% of the time will be devoted to large surveys. After an open international competition, ten major surveys have been selected to proceed to a design-study phase.
Here we present VAST, an ASKAP Survey for Variables and Slow Transients, which is one of the surveys now beginning a design study. VAST proposes to exploit the wide-field, high sensitivity survey capabilities of ASKAP to discover and investigate variable and transient phenomena from the local to the cosmological, including flare stars, intermittent pulsars, X-ray binaries, magnetars, extreme scattering events, intra-day variables, radio supernovae and orphan afterglows of gamma ray bursts. Additionally, VAST will probe unexplored regions of phase space to search for new classes of radio-transient sources. Our proposed program includes a multi-tiered survey strategy (Wide, Deep, and Galactic plane surveys) and multi-wavelength follow-up observations to characterize the dynamic radio sky and ultimately gain a deeper physical understanding of a range of transient phenomena.
Chatterjee Shami
Murphy Tara
VAST Collaboration
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