Evolution of Southern Star-Forming Regions |
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| Authors: | P Ehrenfreund EF Van Dishoeck M Burgdorf J Cami P Van Hoof AGGM Tielens WA Schutte WF Thi |
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| Institution: | (1) Leiden Observatory, P O Box 9513, 2300 RA Leiden, The Netherlands;(2) ISO Science Operation Center, ESA/VILSPA, P O Box 50727, 28080 Madrid, Spain;(3) SRON Groningen, P O Box 800, 9700 AV Groningen, The Netherlands;(4) Kapteyn Astronomical Institute, P O Box 800, 9700 AV Groningen, The Netherlands |
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| Abstract: | We present ISO observations of bright, high-mass southern starforming regions with the Short Wavelength Spectrometer (SWS) and Long Wavelength Spectrometer (LWS). The selected targets show a range of pre-main sequence evolutionary phases. Whereas some objects still show interstellar ice features, the most evolved objects are coincident with ultra-compact HII regions and show strong emission lines from atomic species and polycyclic aromatic hydrocarbons (PAHs). We discuss the ISO spectra between 2.5 - 200 µm of selected southern star-forming regions in the context of their evolution. |
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