The large binocular telescope as an early elt

J. M. Hill, Philip M Hinz, D. S. Ashby

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

The Large Binocular Telescope (LBT) has two 8.4-m primary mirrors on a common AZ-EL mounting. The dual Gregorian optical configuration for LBT includes a pair of adaptive secondaries. The adaptive secondaries are working reliably for science observations as well as for the commissioning of new instruments. Many aspects of the LBT telescope design have been optimized for the combination of the two optical trains. The telescope structure is relatively compact and stiff with a lowest eigenfrequency near 8 Hz. A vibration measurement system of accelerometers (OVMS) has been installed to characterize the vibrations of the telescope. A first-generation of the binocular telescope control system has been deployed on-sky. Two instruments, LBTI and LINC-NIRVANA, have been built to take advantage of the 22.65-m diffraction baseline when the telescope is phased. This diffraction-limited imaging capability (beyond 20-m baseline) positions LBT as a forerunner of the new generation of extremely large telescopes (ELT). We discuss here some of the experiences of phasing the two sides of the telescope starting in 2010. We also report some lessons learned during on-sky commissioning of the LBTI instrument.

Original languageEnglish (US)
Title of host publication3rd AO4ELT Conference - Adaptive Optics for Extremely Large Telescopes
PublisherINAF - Osservatorio Astrofisico di Arcetri Largo Enrico Fermi
ISBN (Print)9788890887604
DOIs
StatePublished - 2013
Event3rd Conference on Adaptive Optics for Extremely Large Telescopes, AO4ELT 2013 - Florence, Italy
Duration: May 26 2013May 31 2013

Other

Other3rd Conference on Adaptive Optics for Extremely Large Telescopes, AO4ELT 2013
CountryItaly
CityFlorence
Period5/26/135/31/13

Fingerprint

Binoculars
Telescopes
telescopes
sky
Diffraction
vibration measurement
Vibration measurement
lessons learned
accelerometers
mounting
Mountings
Accelerometers
diffraction
mirrors

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics

Cite this

Hill, J. M., Hinz, P. M., & Ashby, D. S. (2013). The large binocular telescope as an early elt. In 3rd AO4ELT Conference - Adaptive Optics for Extremely Large Telescopes INAF - Osservatorio Astrofisico di Arcetri Largo Enrico Fermi. https://doi.org/10.12839/AO4ELT3.13167

The large binocular telescope as an early elt. / Hill, J. M.; Hinz, Philip M; Ashby, D. S.

3rd AO4ELT Conference - Adaptive Optics for Extremely Large Telescopes. INAF - Osservatorio Astrofisico di Arcetri Largo Enrico Fermi, 2013.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Hill, JM, Hinz, PM & Ashby, DS 2013, The large binocular telescope as an early elt. in 3rd AO4ELT Conference - Adaptive Optics for Extremely Large Telescopes. INAF - Osservatorio Astrofisico di Arcetri Largo Enrico Fermi, 3rd Conference on Adaptive Optics for Extremely Large Telescopes, AO4ELT 2013, Florence, Italy, 5/26/13. https://doi.org/10.12839/AO4ELT3.13167
Hill JM, Hinz PM, Ashby DS. The large binocular telescope as an early elt. In 3rd AO4ELT Conference - Adaptive Optics for Extremely Large Telescopes. INAF - Osservatorio Astrofisico di Arcetri Largo Enrico Fermi. 2013 https://doi.org/10.12839/AO4ELT3.13167
Hill, J. M. ; Hinz, Philip M ; Ashby, D. S. / The large binocular telescope as an early elt. 3rd AO4ELT Conference - Adaptive Optics for Extremely Large Telescopes. INAF - Osservatorio Astrofisico di Arcetri Largo Enrico Fermi, 2013.
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