Other
Scientific paper
Dec 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999sf99.proc..207s&link_type=abstract
Star Formation 1999, Proceedings of Star Formation 1999, held in Nagoya, Japan, June 21 - 25, 1999, Editor: T. Nakamoto, Nobeyam
Other
Scientific paper
We made C18O and 13CO observations of five low-mass young stars in Taurus with the 45 m telescope to investigate how natal cores around low-mass young stars are dispersed during evolution. All five sources except HL Tau are associated with C18O cores on 0.1 pc scale of which morphologies and column density profiles are different among the four sources. We found that cores with steep column density profiles are associated with dense gas traced by H13CO+ line. On the other hand, we did not detect strong H13CO+ emission toward cores with flat column density profiles. In both the C18O and 13CO maps of L1551 cloud, we can discern cavities and void structures produced by the CO outflows from L1551-IRS 5 or/and L1551 NE. These results suggest that significant parts of natal cores on 0.1 pc scale around young stars are dispersed by molecular outflows during the embedded phase, and that young stars evolve from those cores with steep column density profiles to those with shallow ones.
Furuya Y.
Ho Pak Tung
Kawabe Ryo
Kitamura Yoshimi
Saito Masao
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