Mapping Study of Massive Cloud Cores

Details Mapping Study of Massive Cloud Cores Mapping Study of Massive Cloud Cores

Jun 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005jkas...38..291w&link_type=abstract

Journal of the Korean Astronomical Society, vol. 38, no. 2, pp. 291-293

Astronomy and Astrophysics

Astronomy

Massive Star Formation: Sourceless Cores: Molecular Lines Observation

Scientific paper

Using 13.7 m telescope of Qinghai station of NAO, PMO at Delin Ha, 43 IRAS sources were mapped with 13CO J=1-0 C18O J=1-0 and CO J=1-0. Each source has one or more cores. The distances of these cores range from 1 pc to several pc, and the masses from 10^2 M_&sun; to 10^5 M_&sun;. High velocity outflows were detected. The mass, momentum and energy of these massive cores are larger than those of the low mass ones. With radio, IRAS, MSX data, stellar source distribution were investigated, and sourceless cores that deviate from infrared sources were identified. They are potential high mass star formation sites.

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