Program: GN-2022A-Q-228

Wide-field, high-cadence surveys like Pan-STARRS, ATLAS, ASAS-SN, PTF/ZTF have shown that the explosive transient Universe is much more diverse than a standard view of core-collapse from massive stars and thermonuclear explosions from Chandrasekhar mass white-dwarfs. These high-cadence transient surveys that scan the visible sky every few nights has led to the discovery of various new classes of transient events. The population and rates of fast-evolving transient classes in rise/decline rate and luminosity is highly uncertain given the small sample of studied events. In order to expand the small sample of various types, rapid spectroscopic classification and follow-up is necessary. We are proposing to continue a rapid spectroscopic classification and follow-up program of 1--2 faint, fast-evolving transients from UH and associated surveys (Pan-STARRS, ATLAS, ASAS-SN) with 10 hours of Gemini-N ToO queue time in 2022A. Initial spectroscopic classification with be done with GMOS and if a fast-evolving transient, then to trigger GNIRS to extend the spectrum into the near-infrared JHK bands. Additional GMOS and GNIRS spectra will be obtained to sample the spectral evolution spanning the optical and near-infrared.