An Etymological Dictionary of Astronomy and Astrophysics
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فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory

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Number of Results: 3 Search : thermal escape
nonthermal escape
  گریز ِ ناگرمایی   
goriz-e nâgarmâyi

Fr.: échappement non thermique   

Same as → suprathermal escape.

non-; → thermal; → escape.

suprathermal escape
  گریز ِ فرازگرمایی   
goriz-e farâzgarmâyi

Fr.: échappement suprathermal   

An → atmospheric escape mechanism that occurs where individual atoms or molecules in the atmosphere are raised to → escape velocity because of chemical reactions or ionic interactions. Same as → nonthermal escape (see, e.g., Catling, D. C. and Kasting, J. F., 2017, Escape of Atmospheres to Space, pp. 129-167. Cambridge University Press).

supra-; → thermal; → escape.

thermal escape
  گریز ِ گرمایی   
goriz-e garmâyi

Fr.: échappement thermique   

An → atmospheric escape that occurs when irradiation from a parent star (or a very high heat flux from a planet interior) heats a planetary atmosphere, causing its molecules to escape to space. In basic models, the theory assumes neutral species with a → Maxwell-Boltzmann distribution of velocities, which occurs when collisions between molecules are frequent. Thermal escape has two types: → Jeans' escape and → hydrodynamic escape (see, e.g., Catling, D. C. and Kasting, J. F., 2017, Escape of Atmospheres to Space, pp. 129-167. Cambridge University Press).

thermal; → escape.