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Multi-Object Spectrometer

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Basic principle of Multi-Object Spectroscopy
Basic principle of Multi-Object Spectroscopy

A multi-object spectrometer is a type of optical spectrometer capable to simultaneously acquire the spectra of multiple separate objects in its field of view.[1] It is used in astronomical spectroscopy and is related to long-slit spectroscopy.[2]

Uses in telescopes

In ground-based instruments

Such instruments are available on most 8-10 meter-class ground-based observatories.[3] For example, the Large Binocular Telescope,[4] W. M. Keck Observatory,[5] Gran Telescopio Canarias,[6] Gemini Observatory,[7] New Technology Telescope,[8] William Herschel Telescope,[9] UK Schmidt Telescope[10] and LAMOST include such capabilities.

Four instruments in the Very Large Telescope, including the KMOS (K-band multi-object spectrograph) and the VIMOS (Visible Multi Object Spectrograph) instruments, have multi-object spectroscopic capabilities.

In space-based instruments

Hubble has been operating the NICMOS (Near Infrared Camera and Multi-Object Spectrometer) from 1997 to 1999 and from 2002 to 2008.

The James Webb Space Telescope's NIRSpec (Near-Infrared Spectrograph) instrument is a multi-object spectrometer.[11]

See also

References

  1. ^ "multi-object spectrograph". astro.vaporia.com. Retrieved 2023-08-07.
  2. ^ "Multi Object Spectroscopy (decommissioned)". eso.org. European Southern Observatory. Retrieved 2023-08-07.
  3. ^ "JWST Multi-Object Spectroscopy". JWST User Documentation. 2022-10-17. Retrieved 2023-08-07.
  4. ^ "Instruments - an overview". Large Binocular Telescope Observatory. Retrieved 2023-08-07.
  5. ^ "Keck I And Keck II Telescopes". W. M. Keck Observatory. Retrieved 2023-08-07.
  6. ^ "MEGARA". Gran Telescopio CANARIAS. 2023-05-08. Retrieved 2023-08-07.
  7. ^ "The GMOS (Gemini Multi-Object Spectrograph) project at the ATC". 2003-09-12. Retrieved 2023-08-07.
  8. ^ "EFOSC Overview". eso.org. European Southern Observatory. Retrieved 2023-08-07.
  9. ^ "WEAVE - instrumental overview". ing.iac.es. 2023-07-05. Retrieved 2023-08-07.
  10. ^ "The UK Schmidt Telescope". aat.anu.edu.au. Retrieved 2023-08-07.
  11. ^ "NIRSpec Multi-Object Spectroscopy". JWST User Documentation. 2023-04-24. Retrieved 2023-08-07.
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