Based on observations with ISO, an ESA project with instruments funded by ESA member states (especially the PI countries: France, Germany, The Netherlands, and the UK) with the participation of ISAS and NASA.

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Based on observations collected at the European Southern Observatory, Chile, ESO No. 63.O-0022, 65-000 67-000.

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...

Figures A.2 and A.3 are only available in electronic form at http://www.edpsciences.org

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... IRAF

The package IRAF is distributed by the National Optical Astronomy Observatory which is operatedby the Association of Universities for Research in Astronomy, Inc., under cooperative agreement with the National Science Fundation.

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