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GNIRS

Gemini NorthNear-IR
Last Modified: 
Tuesday, February 2, 2021 - 15:29

GNIRS is a multi-function spectrograph, covering a spectral range of 0.8−5.4 μm and providing a variety of low, medium, and high resolution modes sampled by four different camera options. It can be used with the ALTAIR AO system. GNIRS has some limited imaging capabilities.

Available For Proposals at Gemini North
For more details, see the schedules and the CfPs.
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Current Instruments

  • Altair
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  • Capability
  • Components
  • Proposal preparation
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  • Observation preparation
  • Exposure time estimation
  • Data reduction
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Capability Summary

Spectroscopy

  • Resolutions
    • 1200−18000 for a 2-pixel slit (depending on the camera and grating combination)
  • Modes
    • Single Longslit (1.0−5.4 µm)
      • Slit lengths of 99" (short camera) or 45" (long camera)
      • Simultaneous coverage = 40−1000 nm
    • Cross-dispersed (0.8−2.5 µm)
      • Slit lengths of 7" (short camera) or 5" (long camera)
      • Simultaneous coverage = 1650 nm

Imaging

  • ~10” field of view (varies with filters)
  • 0.15"/pixel (short camera) and 0.05"/pixel (long camera) spatial sampling
  • Order-blocking, broad and narrow band filters

Guiding Options

  • PWFS2
  • Altair (NGS, LGS, LGS+P1)

GNIRS was built by NOAO in Tucson, Arizona and delivered to Cerro Pachón in late October 2003. Commissioning of the majority of the modes took place in stages during 2004. GNIRS was first made available for science use in 2004B. The instrument was damaged in 2007 while at Cerro Pachón and was repaired at Gemini North. Since 2010 it has been available for use on the Gemini North telescope.

Instrument Team

Instrument Scientist

Siyi Xu

Additional Support Staff

    • Joan Font-Serra
    • ​Andy Stephens
    • Thomas Seccull
    • Daniel Moser Faes
    • Jennifer Miller

Email: gnirs_science@gemini.edu

Gemini Observatory Participants

The Gemini Observatory provides the astronomical communities in six participant countries with state-of-the-art astronomical facilities that allocate observing time in proportion to each country's contribution. In addition to financial support, each country also contributes significant scientific and technical resources. The national research agencies that form the Gemini partnership include: the US National Science Foundation (NSF), the Canadian National Research Council (NRC), the Chilean Comisión Nacional de Investigación Cientifica y Tecnológica (CONICYT), the Brazilian Ministério da Ciência, Tecnologia e Inovação, the Argentinean Ministerio de Ciencia, Tecnología e Innovación, and the Korea Astronomy and Space Institute (KASI). The observatory is managed by the Association of Universities for Research in Astronomy, Inc. (AURA) under a cooperative agreement with the NSF. The NSF also serves as the executive agency for the international partnership.


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    • Start here!
    • Phase I
      • PIT
      • Standard Semester Program
      • TAC
      • PW
      • LLP
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      • DDT
      • Queue
      • Classical
      • PV
      • ToO
      • Eavesdropping
      • Joint Proposals
    • Phase II
      • OT
      • OT/Phase II Checklist
      • Instructions
      • Useful to know
    • Phase III
      • Understanding and Processing the Data
      • Publishing Results
      • After the Data are taken
      • Data Reduction Support
      • Users Feedbacks
    • Helpdesk
      • Submit a General Helpdesk Request
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      • Nightlog GN
      • Nightlog GS
      • 2021A Classical Schedule
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      • 2020A Classical Schedule
      • 2019B Classical Schedule
      • 2019A Classical Schedule
      • Previous Semesters
    • Resources
      • Multi-Object Spectroscopy
      • Near-IR Resources
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      • Integration Time Calculator (ITC)
      • Science Operations Statistics
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      • Advice
    • Telescopes and Sites
      • Telescopes
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    • Visiting Gemini
      • Visitas al telescopio
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Instrumentation

    • Current Instruments
      • Altair
      • IGRINS
      • NIRI
      • GNIRS
      • NIFS
      • GMOS
      • GeMS
      • Flamingos 2
      • GSAOI
      • GPI
      • `Alopeke & Zorro
      • GRACES
      • MAROON-X
    • Future Instruments
      • Specs and Documents
      • SCORPIO
      • GHOST
      • GNAOI
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      • 2017 Request for Proposals
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Events

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    • 2009 Mentoring Conference at ‘Imiloa Astronomy Center - Hilo, Hawaii
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