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Giant Magellan Telescope Capabilities
Antonin Bouchez Wavefront Control Group Lead
1 NASA SBAG 16th Mtg. - 12 Jan. 2017
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Founder Institutions
NASA SBAG 16th Mtg. - 12 Jan. 2017
Harvard Carnegie
Texas A&M
ANU
KASI U. Arizona
Las Campanas Observatory
SAO
U. Texas Austin
AAL
U. Chicago
Sao Paulo
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Science Goals
NASA SBAG 16th Mtg. - 12 Jan. 2017
Top-Level Science Areas
• Extra-solar planets
• Stellar Populations and Chemistry
• Galaxy Building
• Black Hole Growth
• Cosmological Physics
• First-Light & Reionization
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M1 – 7 x 8.4 m segments
M2 – 7 x 1.1 m segments
362 square meters of glass
f/0.7 M1 mirror
f/8.2 Gregorian focus (1.0 mm/arcsec)
20 arcmin field of view (1.2 m)
Adaptive M2
Seeing-limited / GLAO / SCAO at any focal station
Telescope Design
NASA SBAG 16th Mtg. - 12 Jan. 2017
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First Generation Instruments
NASA SBAG 16th Mtg. - 12 Jan. 2017
G-CLEF Andrew Szentgyorgyi (Harvard/SAO)
19,000 < R < 108,000 echelle
GMACS Darren DePoy (Texas A&M)
Visible Wide-Field MOS, 1000 < R < 6000
GMTIFS Rob Sharp (ANU)
AO-Fed IFU (5000 < R <10,000) and Imager
GMTNIRS Dan Jaffe (Univ of Texas Austin)
AO-Fed 1-5 micron echelle, 50,000 < R <75,000
5.2m
MANIFEST Jon Lawrence (AAO)
Robotic fiber feed covering 20’ FOV
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Capabilities for Solar System Science
NASA SBAG 16th Mtg. - 12 Jan. 2017
Observing Mode
Image Quality Sky Coverage / Guidestar
Maximum Tracking Rate
Comments
GLAO FWHM~0.4” @ 0.5 µm FWHM~0.2” @ 2 µm
99% sky coverage 6 arcsec/min Faint object spectroscopy
Natural Guidestar AO
Strehl ~50% @ 2 µm Strehl ~10% @ 1 µm
R < 16 on-axis 60 arcsec/min 10-20 mas resolution near-IR imaging & spectroscopy
Laser Tomography AO
Strehl ~50% @ 2 µm Strehl ~10% @ 1 µm
50% sky coverage 6 arcsec/min 10-20 mas resolution near-IR imaging & spectroscopy
Ground-layer AO enables high sensitivity spectroscopy GMACS (R=3000, SNR=5 in 1 hr): B~24.1, R~24.0, I~23.7
GCLEF+GMTNIRS (R=50,000, SNR=100 in 1 hr, 0.35-5.0 µm): B~19.8, R~20, J~15.5, K~15.2, L~11.8
Diffraction-limited IFU spectroscopy (NGAO & LTAO) GMTIFS (R=6000, SNR=5 in 1 hr): J~27.5, H~26.5, K~25.4
Resolution: FWHM=10 mas @ 1.2 µm
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GMT Operations
NASA SBAG 16th Mtg. - 12 Jan. 2017
GMT SAC White Paper on Operations “...Scheduling of observing programs on the telescope should maximize scientific return…” “The operations model should include an interruptible queue-scheduled component to enable a broad range of programs and to optimize the productivity of the facility…” “Broad public access to the GMT should be encouraged through participation in operations funding, large or key projects, and an open data archive.” Data Archive Plan • Developed by scientists at the Chandra Data Center • Proposing an 18 month proprietary period* • Open access following proprietary period
www.gmto.org/Resources/GMT_SAC_Operations_White_Paper.pdf
Summary Schedule (no schedule margin included)
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Segment #4
Segment #3
Segment #2
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GMT Site Current View
NASA SBAG 16th Mtg. - 12 Jan. 2017
Support Site #2 Dorms, dining, recreation
Support Site #1 Labs, workshops
GMT Site Summit office
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GMT Project Office Pasadena, Santiago, and La Serena
NASA SBAG 16th Mtg. - 12 Jan. 2017
85 Full Time Staff
Project Manager: Jim Fanson
Project Scientist: Rebecca Bernstein
Systems Engineer: George Angeli
