... CO wind

Appendix A is only available in electronic form at http://www.aanda.org

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

...

Postdoctoral Fellow of the Fund for Scientific Research, Flanders.

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

... state

Since this paper only deals with ¹²C¹⁶O and no other isotopes, the isotopic notation will be omitted.

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

... Phoenix

Based on observations with Phoenix, NOAO's high-resolution infrared spectrograph mounted on Gemini South. Program ID is GS-2005A-C-8, observing time: 20 h.

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

... (ISO-SWS)

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 United Kingdom) and with the participation of ISAS and NASA.

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

... direction

The nomenclature for the position of the slit used throughout the remainder of the paper is as follows: e.g., (NE) denotes a slit-position which is offset by 1 $^{\prime \prime }$ to the north, and for which we are scanning to eastern part of the slit. Hence, the first symbol denotes the offset direction, the second symbol denotes the scanning direction.

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

... JCMT

The James Clerk Maxwell Telescope (JCMT) is operated by The Joint Astronomy Centre on behalf of the Science and Technology Facilities Council of the UK, the Netherlands Organisation for Scientific Research, and the National Research Council of Canada. Program ID is m04an20.

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.