The accurate flux calibration of the ISO instruments relies on our
knowledge about the atmosphere models of stellar standard candles,
but the accurate knowledge of these models in turn relies on the
high-spectral-resolution observations of these stars, which precisely
require ISO.  Clearly, then, the final ISO-SWS calibration will result
from an iterative process involving both observations of standard stars
and interpretation in terms of stellar-atmosphere models.
This process will benefit both to the general community interested in a
good calibration and to the subcommunity interested in understanding
stellar atmosphere models in detail.
At the OTAC meeting in September it was agreed to spend 10 more hours
on this subject. This proposal has been sollicited accordingly.
In the framework of the STARMOD proposal (P.I.: C. Waelkens) standard
stars with spectral range going from A0 to M4 are already observed. We now
propose to obtain full-resolution SWS scans of a few stellar candles to
cover the full K2-M8 spectral range. Stars with an earlier spectral type
will be included in the proposal of S. Price.