SELF-SIMILAR CHAMPAGNE FLOWS IN Hii REGIONS
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چکیده
We consider the idealized expansion of an initially self-gravitating, static, singular, isothermal cloud core. For t ≥ 0, the gas is ionized and heated to a higher uniform temperature by the formation of a luminous, but massless, star in its center. The approximation that the mass and gravity of the central star is negligible for the subsequent motion of the Hii region holds for distances r
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تاریخ انتشار 2002