# SpecTel: A 10-12 meter class Spectroscopic Survey Telescope **Authors:** Richard Ellis, Kyle Dawson, Joss Bland-Hawthorn, Roland Bacon, Adam, Bolton, Malcolm Bremer, Jarle Brinchmann, Kevin Bundy, Charlie Conroy,, Bernard Delabre, Arjun Dey, Alex Drlica-Wagner, Jenny Greene, Luigi Guzzo,, Jennifer Johnson, Alexie Leauthaud, Khee-Gan Lee, Luca Pasquini, Laura, Pentericci, Johan Richard, Hans-Walter Rix, Connie Rockosi, David Schlegel,, An\v{z}e Slosar, Michael Strauss, Masahiro Takada, Eline Tolstoy, Darach, Watson arXiv: 1907.06797 ยท 2019-07-17 ## TL;DR SpecTel is a proposed 11.4-meter class spectroscopic survey telescope designed for massively-multiplexed observations, enabling extensive scientific exploration across Galactic, extragalactic, and cosmological domains by accessing a large fraction of objects from major surveys. ## Contribution This paper presents a conceptual design for a large, multi-object spectroscopic telescope in the southern hemisphere, optimized for high multiplexing and broad wavelength coverage, which is a novel proposal compared to existing facilities. ## Key findings - Design feasibility using current technology - Potential to access more objects than existing facilities - Enables transformational progress in multiple astronomical fields ## Abstract We recommend a conceptual design study for a spectroscopic facility in the southern hemisphere comprising a large diameter telescope, fiber system, and spectrographs collectively optimized for massively-multiplexed spectroscopy. As a baseline, we propose an 11.4-meter aperture, optical spectroscopic survey telescope with a five square degree field of view. Using current technologies, the facility could be equipped with 15,000 robotically-controlled fibers feeding spectrographs over 360