Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004a%26a...417..605p&link_type=abstract
Astronomy and Astrophysics, v.417, p.605-613 (2004)
Astronomy and Astrophysics
Astrophysics
30
Ism: Abundances, Ism: Molecules, Ism: Dust, Extinction, Ism: Structure, Ism: Individual: L134N, Ism: Individual: L183
Scientific paper
We present here a complete dust map of L183 (=L134N) with opacities ranging from AVb = 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. (\cite{Pagani03b}) is confirmed, and the ISOPHOT data are shown to be inappropriate for finding such cores. In the inner core, Tdust ≈ 7.5 K and could be as low as 6.7 K.
Based on observations made with the CFHT, the Iram-30 m and ISO, an ESA project with instruments funded by ESA Member States (especially the PI countries: France, Germany, The Netherlands and the UK) with the participation of ISAS and NASA.
Apponi Aldo Joseph
Bacmann Aurore
Cambresy Laurent
Fich Michel
Lagache Guilaine
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