A preliminary design for the GMT-Consortium Large Earth Finder (G-CLEF)

Andrew Szentgyorgyi; Stuart Barnes; Jacob Bean; Bruce Bigelow; Antonin Bouchez; Moo-Young Chun; Jeffrey D. Crane; Harland Epps; Ian Evans; Janet Evans; Anna Frebel; Gabor Furesz; Alex Glenday; Dani Guzman; Tyson Hare; Bi-Ho Jang; Jeong-Gyun Jang; Ueejong Jeong; Andres Jordan; Kang-Min Kim; Jihun Kim; Chih-Hao Li; Mercedes Lopez-Morales; Kenneth McCracken; Brian McLeod; Mark Mueller; Jakyung Nah; Timothy Norton; Heeyoung Oh; Jae Sok Oh; Mark Ordway; Byeong-Gon Park; Chan Park; Sung-Joon Park; David Phillips; David Plummer; William Podgorski; Florian Rodler; Andreas Seifahrt; Kyung-Mo Tak; Alan Uomoto; Marcos A. Van Dam; Ronald Walsworth; Young Sam Yu; In-Soo Yuk

doi:10.1117/12.2056741

28 July 2014 A preliminary design for the GMT-Consortium Large Earth Finder (G-CLEF)

Andrew Szentgyorgyi, Stuart Barnes, Jacob Bean, Bruce Bigelow, Antonin Bouchez, Moo-Young Chun, Jeffrey D. Crane, Harland Epps, Ian Evans, Janet Evans, Anna Frebel, Gabor Furesz, Alex Glenday, Dani Guzman, Tyson Hare, Bi-Ho Jang, Jeong-Gyun Jang, Ueejong Jeong, Andres Jordan, Kang-Min Kim, Jihun Kim, Chih-Hao Li, Mercedes Lopez-Morales, Kenneth McCracken, Brian McLeod, Mark Mueller, Jakyung Nah, Timothy Norton, Heeyoung Oh, Jae Sok Oh, Mark Ordway, Byeong-Gon Park, Chan Park, Sung-Joon Park, David Phillips, David Plummer, William Podgorski, Florian Rodler, Andreas Seifahrt, Kyung-Mo Tak, Alan Uomoto, Marcos A. Van Dam, Ronald Walsworth, Young Sam Yu, In-Soo Yuk

Author Affiliations +

Proceedings Volume 9147, Ground-based and Airborne Instrumentation for Astronomy V; 914726 (2014) https://doi.org/10.1117/12.2056741
Event: SPIE Astronomical Telescopes + Instrumentation, 2014, Montréal, Quebec, Canada

Abstract

The GMT-Consortium Large Earth Finder (G-CLEF) is an optical-band echelle spectrograph that has been selected as the first light instrument for the Giant Magellan Telescope (GMT). G-CLEF is a general-purpose, high dispersion spectrograph that is fiber fed and capable of extremely precise radial velocity measurements. The G-CLEF Concept Design (CoD) was selected in Spring 2013. Since then, G-CLEF has undergone science requirements and instrument requirements reviews and will be the subject of a preliminary design review (PDR) in March 2015. Since CoD review (CoDR), the overall G-CLEF design has evolved significantly as we have optimized the constituent designs of the major subsystems, i.e. the fiber system, the telescope interface, the calibration system and the spectrograph itself. These modifications have been made to enhance G-CLEF’s capability to address frontier science problems, as well as to respond to the evolution of the GMT itself and developments in the technical landscape. G-CLEF has been designed by applying rigorous systems engineering methodology to flow Level 1 Scientific Objectives to Level 2 Observational Requirements and thence to Level 3 and Level 4. The rigorous systems approach applied to G-CLEF establishes a well defined science requirements framework for the engineering design. By adopting this formalism, we may flexibly update and analyze the capability of G-CLEF to respond to new scientific discoveries as we move toward first light. G-CLEF will exploit numerous technological advances and features of the GMT itself to deliver an efficient, high performance instrument, e.g. exploiting the adaptive optics secondary system to increase both throughput and radial velocity measurement precision.

Citation Download Citation

Andrew Szentgyorgyi, Stuart Barnes, Jacob Bean, Bruce Bigelow, Antonin Bouchez, Moo-Young Chun, Jeffrey D. Crane, Harland Epps, Ian Evans, Janet Evans, Anna Frebel, Gabor Furesz, Alex Glenday, Dani Guzman, Tyson Hare, Bi-Ho Jang, Jeong-Gyun Jang, Ueejong Jeong, Andres Jordan, Kang-Min Kim, Jihun Kim, Chih-Hao Li, Mercedes Lopez-Morales, Kenneth McCracken, Brian McLeod, Mark Mueller, Jakyung Nah, Timothy Norton, Heeyoung Oh, Jae Sok Oh, Mark Ordway, Byeong-Gon Park, Chan Park, Sung-Joon Park, David Phillips, David Plummer, William Podgorski, Florian Rodler, Andreas Seifahrt, Kyung-Mo Tak, Alan Uomoto, Marcos A. Van Dam, Ronald Walsworth, Young Sam Yu, and In-Soo Yuk "A preliminary design for the GMT-Consortium Large Earth Finder (G-CLEF)", Proc. SPIE 9147, Ground-based and Airborne Instrumentation for Astronomy V, 914726 (28 July 2014); https://doi.org/10.1117/12.2056741

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available