Finding Fast Transients in Real Time Using a Novel Light-curve Analysis Algorithm

Abstract The current data acquisition rate of astronomical transient surveys and the promise for significantly higher rates in next decade necessitate development novel approaches to analyze sets promptly detect objects interest. Deeper, Wider, Faster (DWF) program is a survey focused on identification fast-evolving transients, such as fast radio bursts, gamma-ray supernova shock breakouts. It employs multifrequency simultaneous coverage same part sky over several orders magnitude. Using Dark Energy Camera mounted 4 m Blanco telescope, DWF captures 20 s g -band exposure every minute, at typical seeing ∼1″ an air mass ∼1.5. These optical are collected simultaneously with observations conducted entire electromagnetic spectrum—from γ -rays—as well cosmic-ray observations. In this paper, we present real-time light-curve analysis algorithm, designed transients data; algorithm functions independently from, or conjunction with, image subtraction. We sample detected by our false-positive analysis. Our customizable can be tuned sensitive evolving different timescales flux ranges.