The Atacama Cosmology Telescope: Systematic Transient Search of 3-Day Maps

Understand

We conduct a systematic search for transients in three years of data (2017-2019) from the Atacama Cosmology Telescope (ACT).

• ACT covers 40 percent of the sky at three bands spanning from 77 GHz to 277 GHz.
• Analysis of 3-day mean-subtracted sky maps, which were match-filtered for point sources, yielded 29 transients detections.
• Eight of these transients are due to known asteroids, and three others were previously published.