Rapidly evolving transients in the Dark Energy Survey

Understand

We present the results of a search for rapidly evolving transients in the Dark Energy Survey Supernova Programme.

• These events are characterized by fast light curve evolution (rise to peak in $\lesssim 10$ d and exponential decline in $\lesssim30$ d after peak).
• We discovered 72 events, including 37 transients with a spectroscopic redshift from host galaxy spectral features.
• The 37 events increase the total number of rapid optical transients by more than factor of two.