Imminent Design Choices for the Thirty Meter Telescope's Wide Field Optical Spectrograph

The Wide Field Optical Spectrograph (WFOS) will be one of TMT's workhorse, first-light instruments. It is specified as a seeing-limited spectrograph that will enable multi-object spectroscopy over ~25 arcmin^2, and deliver the full optical wavelength range from 3200A to 1 micron at a spectral resolution of R=5000. Over the past year, this ambitious instrument concept has gone through serious design changes. The instrument team has pursued very different design paths in parallel, one using fibers, and one using more traditional slits and slit masks. In April, a "down-select" committee will choose one design to pursue. TMT is the only ELT that will have this kind of instrument at first light, and the right choice will give the TMT community an early advantage. This talk is meant to be an informal presentation to inform the PKU community of the current status of the WFOS project, and to get feedback from the interested users.

Dr. Eric Peng (DoA, KIAA)
KIAA, 1st meeting room
Wed, 2018-03-21 12:00 to 13:00