Based on observations collected at the European Southern
Observatory, Paranal, Chile (ESO Programme 164.I-0605(A)), UKIRT, Mauna Kea, Hawaii, and ISO satellite.
The United Kingdom Infrared Telescope is operated by the Joint Astronomy
Centre on behalf of the UK Particle Physics and Astronomy Research
Council. TRG's research is supported by the Gemini Observatory, which is
operated by the Association of Universities for Research in Astronomy,
Inc., on behalf of the international Gemini partnership of Argentina,
Australia, Brazil, Canada, Chile, the UK, and the USA.
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