Goodman High Throughput Spectrograph

Updated Nov 11, 2019 (César Briceño)
Instrument Scientist: Sean Points
CTIO Support Scientists: Sean Points, Regis Cartier, Alfredo Zenteno, César Briceño
CTIO/Chile Goodman Support: Goodman Support
SOAR/Brazil Support: 
GOODMAN Update - Nov 2019: Because of the poor optical quality of the replacement round GG 385 filter, we have gone back to using the COSMOS  GG395 square 4x4 inch filter, until we get a quality replacement for the round GG385. Therefore note that because the COSMOS square filter needs to be mounted on filter wheel 1, users needing this filter have to explicitly request it in their Instrument Setup form.

The Goodman High Throughput Spectrograph (GTHS) was built in the Goodman Laboratory at the University of North Carolina under the leadership of Prof. J. Christopher Clemens. It is an imaging spectrograph, capable of producing excellent image quality across a 7.2 arcmin diameter FOV (with a 0.15 arcsec/pixel scale), and spectra at various resolutions from the atmospheric UV cutoff all the way out to 850nm. It employs all transmissive optics, and Volume Phase Holographic (VPH) Gratings to achieve the highest possible throughput for low resolution spectroscopy over the 320-850 nm wavelength range. The paper describing the instrument is Clemens et al. (2004)