Letter to the Editor

L183 (L134N) Revisited^*

I. The very cold core and the ridge

¹ LERMA, UMR 8112 du CNRS, Observatoire de Paris, 61 Av. de l'Observatoire, 75014 Paris, France
² IAS, Bât. 121, Université Paris-Sud, 91435 Orsay, France
³ ESO, Karl-Schwarzschild-Str. 2, 85748 Garching bei München, Germany
⁴ CEA, DSM, DAPNIA, Service d'Astrophysique, CE Saclay, 91191 Gif-sur-Yvette Cedex, France
⁵ Observatoire Astronomique de Strasbourg, UMR 7550, Université Louis Pasteur, 67000 Strasbourg, France
⁶ Physics Department, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada
⁷ SRON, PO Box 800, 9700 AV Groningen, The Netherlands
⁸ CITA, University of Toronto, 60 St. George Street, Toronto, Ontario, M5S 3H8, Canada
⁹ Instituto de Estructura de la Materia, Dpto de Física Molecular CSIC, Madrid, Spain
¹⁰ University of Arizona, Steward Observatory, 933 N. Cherry Ave., Tucson, AZ 85721, USA

Corresponding author: L. Pagani, laurent.pagani@obspm.fr

Received: 24 March 2003
Accepted: 14 June 2003

Abstract

We report new 1.2 mm continuum observations of the L183 (=L134N) dark cloud with the MAMBO bolometer array at IRAM. Combined with ISOCAM and ISOPHOT data at 7 and 200 μm, this new observation is not compatible with the results found by Ward-Thompson et al. (1994) with SCUBA and further analysed by Lehtinen et al. (2003) using ISOPHOT data. Only one bright core, with a northern elongation (the ridge) is detected. We show that this core has an average temperature K which is one of the coldest temperatures reported so far.