Extended fine structure and continuum emission from S 140/L 1204.
Burgdorf, M.; Serra, G.; Barlow, M. J.; Caux, E.; Molinari, S.; di Giorgio, A.; Lim, T.; Lorenzetti, D.; Smith, H.; Texier, D.; Unger, S. J.; Armand, C.; Furniss, I.; Gry, C.; Trams, N.; Smith, A.; Baluteau, J. -P.; Sidher, S. D.; Emery, R.; Swinyard, B.; Joubert, M.; Pequignot, D.; Ewart, D.; Price, M.; Aannestad, P.; Minchin, N.; King, K.
Abstract
Grating spectra, covering the wavelength range 45 to 187μm have been taken with the ISO Long Wavelength Spectrometer (LWS) at a series of pointing positions over the S 140 region, centred on the cluster of embedded young stellar objects at the south-west corner of the L1204 molecular cloud. Extended emission from [CII]158μm and [OI]63μm is seen, peaking near the position of the embedded stars. The measurements of the fine structure lines are interpreted in terms of PDR models for the emission, as well as the underlying thermal continuum for the heated gas and dust.