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Astron. Astrophys. 315, L285-L288 (1996)

Extended fine structure and continuum emission from S140/L1204*

R. Emery1, P. Aannestad2, N. Minchin3, S.J. Unger1, J.-P. Baluteau4, M.J. Barlow5, E. Caux6, G. Serra6, M. Joubert7, D. Lorenzetti8, D. Pequignot9, C. Armand10, M. Burgdorf10, A. di Giorgio10, C. Gry10,4, T. Lim10, S. Molinari10, D. Texier10, S.D. Sidher10, N. Trams10, B. Swinyard1, K. King1, H. Smith11, I. Furniss5, D. Ewart10, M. Price10, and A. Smith10

1 Space Science Department, Rutherford Appleton Lab, Chilton, Oxon OX11 0QX, UK
2 Department of Physics and Astronomy, Arizona State University, Tempe, USA
3 Department of Physics , Queen Mary and Westfield College, Mile End Road, London, E1 4NS, UK
4 Laboratoire d'Astronomie Spatiale de CNRS, Marseille, France
5 Department of Physics and Astronomy, University College London, Gower Street, London, UK
6 Centre d'Etude Spatiale des Rayonnements, 9 Avenue de Colonel Roche, F-31029 Toulouse, France
7 CNES, 2 place Maurice Quentin, F-75001 Paris, France
8 Observatorio Astronomico di Roma, Monteporzio, Italy
9 Section d'Astrophysique, Observatoire de Paris, Paris, France
10 LWS Instrument Dedicated Team, VILSPA, PO Box 50727, E-28080 Madrid, Spain
11 National Air and Space Museum, Smithsonian Institute, Lab. Astrophysics, Washington, DC 20560, USA

Received 5 August 1996 / Accepted 13 August 1996

Abstract. Grating spectra, covering the wavelength range 45 to img2.gifm have been taken with the ISO Long Wavelength Spectrometer (LWS) at a series of pointing positions over the S140 region, centred on the cluster of embedded young stellar objects at the south-west corner of the L1204 molecular cloud. Extended emission from [CII] img3.gifm and [OI] img4.gifm 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.

Key words: ISM: S140 - HII regions - ISM: clouds - infrared: interstellar: lines - infrared: interstellar: continuum

* Based on observations with ISO, an ESA project with instruments funded by ESA Member States (specially the PI countries: France, Germany, the Netherlands and the United Kingdom) and with the participation of ISAS and NASA.

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