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Documents ISM Lecture 13 H 2 Regions II: Diffuse molecular clouds; C + => CO transition.

Slide 1 ISM Lecture 13 H 2 Regions II: Diffuse molecular clouds; C + => CO transition Slide 2 13.1 Diffuse molecular clouds  Diffuse clouds  clouds with total visual…

Documents ISM Lecture 10 The Three-Phase Interstellar Medium.

ISM Lecture 10 The Three-Phase Interstellar Medium 10.1 Why necessary? Two-phase model (see Sect. 8.3) FGH model: Heating by cosmic rays => p.e. effect UV from stars:…

Documents ISM Lecture 9 Shock waves; Supernova remnant evolution.

ISM Lecture 9 Shock waves; Supernova remnant evolution 9.1 Shock waves A shock wave is a pressure-driven compressive disturbance propagating faster than “signal speed”…