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==> In this proposal, more time is being requested for CJOBLIN.PAHSCHEM
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The chemical identity of the carriers of the emission features
at 3.3, 6.2, 7.7, 8.6, 11.3, and 12.7um is still poorly known.
We propose to observe the spatial distribution of these features
within the reflection nebula NGC1333-SVS3. This object was chosen
because of its simplicity which makes possible a better
characterization of the emitting particles.
The observation of this simple object is necessary to interpret the
measurements on more complex regions including HII and
photodissociation regions (in particular from the proposals
MGIARD.WDUSTHII and CJOBLIN.PAHSCHEM). This may of course be
of interest for other ISO observers.
NGC1333-SVS3 was the object with the highest grade in the proposal
CJOBLIN.PAHSCHEM but was unfortunately not observable for an
autumn launch. Due to the longer lifetime of ISO, this object will
be visible next year.
We take then the opportunity of this second call to propose a careful
mapping of this object in the 6.2, 7.7, 8.6, 11.3 and 12.7um features.