Dark Energy Survey Identification of A Low-Mass Active Galactic Nucleus at Redshift 0.823 from Optical Variability

Hengxiao Guo, Colin J. Burke, Xin Liu +56

We report the identification of a low-mass AGN, DES J0218$-$0430, in a redshift $z=0.823$ galaxy in the Dark Energy Survey (DES) Supernova field. We select DES J0218$-$0430 as an…