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ISO-LWS two colour diagram of young stellar objects

S. Pezzuto 1, E. Tommasi 2, E. Caux 3, A. Di Giorgio 1, T. Giannini 1, S.J. Leeks 4, D. Lorenzetti 5, & P. Saraceno 1

1 IFSI-CNR, Via Fosso del Cavaliere, 00133 Roma - Italy

2 Agenzia Spaziale Italiana, Via di Villa Patrizi 13, Roma - Italy

3 CESR, BP4346, F-31028 Toulouse Cedex 04, France

4 Queen Mary & Westfield College, London, UK

5 Osservatorio di Roma, Monteporzio, Roma - Italy




A two colours diagram of YSO's is presented. The colours have been derived from ISO-LWS spectra exploiting the full wavelength range of the instrument. This diagram offers a powerful tool to identify the evolutionary status of YSO's.


"The Universe as seen by ISO", 20 - 23 October 1998, Paris: Abstract Book