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Instrumentation

Integral-Field Spectrograph

A spectrograph that records a full spectrum at every point in a two-dimensional field of view at once, producing a 'data cube' of the sky — an image where every pixel is a spectrum. It maps how motion and composition vary across a galaxy or nebula in a single exposure; MUSE on the VLT is a leading example.

Highlights

  • ›A spectrum at every pixel — imaging and spectroscopy at once

Facilities, methods & instruments

Knowledge connections

Sources

The primary and reference sources this topic draws on.

  • ESOEuropean Southern Observatory

    Southern-hemisphere observatory data and imagery (VLT, ALMA partner).