A Candidate Dual QSO at Cosmic Noon
A Candidate Dual QSO at Cosmic Noon
Abstract We report the discovery of a candidate dual QSO at z = 1.889, a redshift that is in the era known as “cosmic noon” where most of the universe’s black hole and stellar mass growth occurred. The source was identified in Hubble Space Telescope WFC3/IR images of a dust-reddened …