Thermal Infrared Imaging: Comparison with other facilities

• COBE: 50% of the luminous energy in Universe emerges in far-IR

• NGST may be the most sensitive facility for MIR imaging

• 10 mm mag: 23m (AB) 30 galaxies arcmin-2
  • Typical qgal~ 0.8”
  • qdiff ~ 0.1" at 10 µm

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