EDP Sciences
Free access
Issue A&A
Volume 417, Number 2, April II 2004
Page(s) 605 - 613
Section Interstellar and circumstellar matter
DOI http://dx.doi.org/10.1051/0004-6361:20034087



A&A 417, 605-613 (2004)
DOI: 10.1051/0004-6361:20034087

L183 (L134N) Revisited

II. The dust content
L. Pagani1, A. Bacmann2, F. Motte3, L. Cambrésy4, M. Fich5, G. Lagache6, M.-A. Miville-Deschênes6, 7, J.-R. Pardo8 and A. J. Apponi9

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

(Received 16 July 2003 / Accepted 12 November 2003 )

Abstract
We present here a complete dust map of L183 (= L134N ) with opacities ranging from AV = 3 to 150 mag. Five peaks are identified as being related to known molecular peaks and among these dust peaks two are liable to form stars. The main peak is a prestellar core with a density profile proportional to r-1 up to a radius of ~4500 AU and the northern peak could possibly be on its way to form a prestellar core. If true, this is the first example of the intermediate steps between cloud cores and prestellar cores during the quasi-static contraction. Additionally, the low dust temperature of the core reported in Pagani et al. (2003b) is confirmed, and the ISOPHOT data are shown to be inappropriate for finding such cores. In the inner core, $T_\mathrm{dust} \approx 7.5$ K and could be as low as 6.7 K.


Key words: ISM: abundances -- ISM: molecules -- ISM: dust, extinction -- ISM: structure -- ISM: individual: L134N -- ISM: individual: L183

Offprint request: L. Pagani, laurent.pagani@obspm.fr

SIMBAD Objects



© ESO 2004

What is OpenURL?

The OpenURL standard is a protocol for transmission of metadata describing the resource that you wish to access. An OpenURL link contains article metadata and directs it to the OpenURL server of your choice. The OpenURL server can provide access to the resource and also offer complementary services (specific search engine, export of references...). The OpenURL link can be generated by different means.
  • If your librarian has set up your subscription with an OpenURL resolver, OpenURL links appear automatically on the abstract pages.
  • You can define your own OpenURL resolver with your EDPS Account. In this case your choice will be given priority over that of your library.
  • You can use an add-on for your browser (Firefox or I.E.) to display OpenURL links on a page (see http://www.openly.com/openurlref/). You should disable this module if you wish to use the OpenURL server that you or your library have defined.

Editor-in-Chief: T. Forveille
Letters Editor-in-Chief: J. Alves
Managing Editor: C. Bertout

ISSN: 0004-6361 ; e-ISSN: 1432-0746
Frequency: 12 volumes per year
Published by: EDP Sciences

Mirror sites: CDS | EDP Sciences
  RSS feeds
© The European Southern Observatory (ESO)