What is it about?
Infrared bandpass filters have been developed in the N-(λ=7.5-14μm) and Q-(λ=16-28μm) band mid-IR atmospheric windows to study interstellar and circumstellar environments crucial for star and planetary formation theories.
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Why is it important?
The VISIR instrument for the European Southern Observatory (ESO) Very Large Telescope (VLT) is a thermal-infrared imager and spectrometer currently being developed by the French Service d'Astrophysique of CEA Saclay, and Dutch NFRA ASTRON Dwingeloo consortium.
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This page is a summary of: Interference Filters and Coatings for Mid-Infrared Astronomy (8-30μm), February 2003, SPIE,
DOI: 10.1117/12.458056.
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