Table 1 is only available in electronic form at http://www.edpsciences.org and at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/372/L41

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Present address: California Institute of Technology, MS 320-47, Pasadena, CA 91125, USA.

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... (JCMT

JCMT is operated by the JAC, Hawaii, on behalf of the UK PPARC, the Netherlands OSR, and the Canadian NRC.

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