ISOCAM observations in Cha I. (Persi+, 2000)

Details ISOCAM observations in Cha I. (Persi+, 2000) ISOCAM observations in Cha I. (Persi+, 2000)

Mar 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000ycat..33570219p&link_type=abstract

VizieR On-line Data Catalog: J/A+A/357/219. Originally published in: 2000A&A...357..219P

Computer Science

Molecular Clouds, Photometry: Infrared, Stars: Pre-Main Sequence

Scientific paper

We present the results of an ISOCAM survey of the Chamaeleon I dark cloud conducted in two broad-band filters at 6.7 and 14.3μm. In an area of 0.59deg2. we have detected a total of 282 mid-IR sources with 103 sources observed in both filters. Combining the ISOCAM observations with the I, J, and Ks data obtained with DENIS, we have found 108 pre-main-sequence (PMS) stars in the region, of which 34 were previously unidentified. Several of these newly discovered young stellar objects are relatively faint suggesting a population in Cha I of very low mass objects that probably includes brown dwarfs in their early contraction phases. Finally, most of the PMS stars show the spectral index computed between 2.2 and 14.3μm typical of Class II sources. The luminosity function (LF) derived for our detected PMS stars is discussed.
(4 data files).

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