Rethinking the N(H2)/I(CO) conversion factor
نویسندگان
چکیده
منابع مشابه
Rethinking the N ( H 2 ) / I ( CO ) Conversion Factor
An improved formulation for the N(H 2)/I(CO) conversion factor or X-factor is proposed. The statement that the velocity-integrated radiation temperature of the 12 CO J = 1 → 0 line, I(12 CO), " counts " optically thick clumps is quantified using the formalism of Martin et al. (1984) for line emission in a clumpy cloud. Adopting the simplifying assumptions of thermalized 12 CO J = 1 → 0 line emi...
متن کاملRethinking the N ( H 2 ) / I ( CO ) Conversion Factor
An improved formulation for the X-factor is proposed. The statement that the velocity-integrated radiation temperature of the 12 CO J = 1 → 0 line, I(12 CO), " counts " optically thick clumps is quantified using the formalism of Martin et al. (1984) for line emission in a clumpy cloud. Adopting the simplifying assumptions of thermalized 12 CO J = 1 → 0 line emission and isothermal gas, an effec...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2007
ISSN: 0035-8711,1365-2966
DOI: 10.1111/j.1365-2966.2007.11968.x