Astronomy and Astrophysics – Astronomy
Scientific paper
May 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994apjs...92..163s&link_type=abstract
The Astrophysical Journal Supplement Series, vol. 92, no. 1, p. 163-172
Astronomy and Astrophysics
Astronomy
86
Astronomical Catalogs, H Ii Regions, Implosions, Infrared Astronomy, Luminosity, Mass Flow, Molecular Clouds, Radiation Pressure, Rims, Southern Hemisphere, Star Formation, Brightness Distribution, Infrared Astronomy Satellite, Infrared Imagery, Mass Ratios, Point Sources
Scientific paper
Forty-five bright-rimmed clouds associated with Infrared Astronomical Satellite (IRAS) point sources have been selected in the southern hemisphere from the ESO (R) Atlas in addition to the 44 objects of the northern work (Pape I). Again they are good candidates for the sites of star formation induced by radiation-driven implosion. Four of them are known to be associated with HH objects, and three with molecular outflows. Most of their sizes are approximately less than 1 pc, and the luminosities of the associated IRAS sources, approximately 20 to 3 x 104 solar luminosity, are much larger than those of the IRAS sources associated with Bok globules or dense cores in dark cloud complexes, both having a similar mass range. This suggests that intermediate-mass stars or multiple-star systems are mainly formed in bright-rimmed clouds. IRAS luminosity to cloud mass ratios are significantly greater than those in Bok globules or dense cores. The results confirm most of the findings of Paper I.
Ogura Katsuo
Sugitani Koji
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