Mass Codes of Molecular Clouds Within IRAF

Details Mass Codes of Molecular Clouds Within IRAF Mass Codes of Molecular Clouds Within IRAF

Dec 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994pkas....9...39l&link_type=abstract

Publications of the Korean Astronomical Society, vol.9, no.1, p.39-54

Astronomy and Astrophysics

Astronomy

Scientific paper

We present two codes which estimates virial mass and LTE mass using IMFORT interface within IRAF(Image Reduction and Analysis Facility). It is discussed that threshold value (temperature or CO integrated intensity), which defines a reasonable cloud boundary and size, is the most important parameter determining accurate results. Several virial masses are to be obtained using the virial task, as well as three velocity dispersions including the centroid velocity dispersion, a turbulence indicator. LTE mass is to be estimated by using task lte as well as three by-product images. The 13CO abundance and threshold temperature of 13CO and 12CO peak temperatures are the most critical parameters in LTE technique.

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