Program: GN-2017B-Q-51

A major prediction of the AGN Unification model is that the viewing angle with respect to a dusty torus is the primary factor determining whether one observes a Type-1 AGN, with broad emission lines, or a Type-2 AGN, with only narrow lines. Type-2 AGN have been readily identified at low redshift (z<1). However, only handfuls of bonafide Type-2 QSOs are known at redshifts z~2 with bolometric luminosities that are comparable to the typical luminosity of SDSS Type-1 QSOs. The conspicuous lack of luminous Type-2 QSOs at high-redshift constitutes a major unsolved problem. Here we propose to obtain Gemini-GNIRS spectra of 26 bright Type-2 QSO candidates from SDSS Stripe 82, photometrically selected from a new WISE 22um (W4) selection technique in order to identify and investigate the elusive high-z Type-2 QSO population.