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Proceedings Paper

The 6.5-m MMT's f/5 wide-field optics and instruments
Author(s): Daniel Fabricant; Robert G. Fata; Brian A. McLeod; Andrew H. Szentgyorgyi; J. Barberis; Henry W. Bergner Jr.; Warren R. Brown; Nelson Caldwell; Maureen A. Conroy; Roger Eng; Harland Epps; G. Furesz; Tom M. Gauron; John Geary; Richard E. Goddard; Lee Hartmann; Edward N. Hertz; M. Honsa; Mark Mueller; Timothy J. Norton; Mark P. Ordway; John B. Roll Jr.; G. Grant Williams; Deborah L. Freedman-Woods; Joe M. Zajac
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Paper Abstract

In 2003, the converted MMT’s wide-field f/5 focus was commissioned. A 1.7-m diameter secondary and a large refractive corrector offer a 1° diameter field of view for spectroscopy and a 0.5° diameter field of view for imaging. Stellar images during excellent seeing are smaller than 0.5" FWHM across the spectroscopic field of view, and smaller than 0.4" across the imaging field of view. Three wide-field f/5 instruments are now in routine operation: Hectospec (an R~1000 optical spectrograph fed by 300 robotically-positioned optical fibers), Hectochelle (an R~40,000 optical spectrograph fed by the same fibers), and Megacam (a 340 megapixel, 36 CCD optical imager covering a 25' by 25' format).

Paper Details

Date Published: 30 September 2004
PDF: 12 pages
Proc. SPIE 5492, Ground-based Instrumentation for Astronomy, (30 September 2004); doi: 10.1117/12.551729
Show Author Affiliations
Daniel Fabricant, Harvard-Smithsonian Ctr. for Astrophysics (United States)
Robert G. Fata, Harvard-Smithsonian Ctr. for Astrophysics (United States)
Brian A. McLeod, Harvard-Smithsonian Ctr. for Astrophysics (United States)
Andrew H. Szentgyorgyi, Harvard-Smithsonian Ctr. for Astrophysics (United States)
J. Barberis, Harvard-Smithsonian Ctr. for Astrophysics (United States)
Henry W. Bergner Jr., Harvard-Smithsonian Ctr. for Astrophysics (United States)
Warren R. Brown, Harvard-Smithsonian Ctr. for Astrophysics (United States)
Nelson Caldwell, Harvard-Smithsonian Ctr. for Astrophysics (United States)
Maureen A. Conroy, Harvard-Smithsonian Ctr. for Astrophysics (United States)
Roger Eng, Harvard-Smithsonian Ctr. for Astrophysics (United States)
Harland Epps, Lick Observatory, Univ. of California/Santa Cruz (United States)
G. Furesz, Harvard-Smithsonian Ctr. for Astrophysics (United States)
Tom M. Gauron, Harvard-Smithsonian Ctr. for Astrophysics (United States)
John Geary, Harvard-Smithsonian Ctr. for Astrophysics (United States)
Richard E. Goddard, Harvard-Smithsonian Ctr. for Astrophysics (United States)
Lee Hartmann, Harvard-Smithsonian Ctr. for Astrophysics (United States)
Edward N. Hertz, Harvard-Smithsonian Ctr. for Astrophysics (United States)
M. Honsa, Harvard-Smithsonian Ctr. for Astrophysics (United States)
Mark Mueller, Harvard-Smithsonian Ctr. for Astrophysics (United States)
Timothy J. Norton, Harvard-Smithsonian Ctr. for Astrophysics (United States)
Mark P. Ordway, Harvard-Smithsonian Ctr. for Astrophysics (United States)
John B. Roll Jr., Harvard-Smithsonian Ctr. for Astrophysics (United States)
G. Grant Williams, MMT Observatory (United States)
Deborah L. Freedman-Woods, Harvard-Smithsonian Ctr. for Astrophysics (United States)
Joe M. Zajac, Harvard-Smithsonian Ctr. for Astrophysics (United States)


Published in SPIE Proceedings Vol. 5492:
Ground-based Instrumentation for Astronomy
Alan F. M. Moorwood; Masanori Iye, Editor(s)

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