THERMALLY DRIVEN ATMOSPHERIC ESCAPE: TRANSITION FROM HYDRODYNAMIC TO JEANS ESCAPE
نویسندگان
چکیده
منابع مشابه
Atmospheric escape from hot Jupiters
The extra-solar planet HD209458b has been found to have an extended atmosphere of escaping atomic hydrogen (Vidal-Madjar et al. 2003), suggesting that “hot Jupiters” closer to their parent stars could evaporate. Here we estimate the atmospheric escape (so called evaporation rate) from hot Jupiters and their corresponding life time against evaporation. The calculated evaporation rate of HD209458...
متن کاملMass Fractionation in Hydrodynamic Escape
We show that mas s fractionation occurs during the course of hydrodynamic escape of gases f rom the a tmosphe re of an inner planet. Light gases escape more readily than heavy gases. The resul tant fract ionat ion as a funct ion of mas s yields a linear or concave downward plot in a graph of logari thm of remaining inventory against a tomic mass . An episode of hydrodynamic escape early in the ...
متن کاملAtmospheric Escape at Mars
Introduction: Several mechanisms have been identified to result in escape of the Martian atmosphere. These mechanisms can be divided in two groups [1]: • Thermal escape or Jeans escape, which corresponds to the loss of atoms in the high energy tail of the energy distribution at the exobase. This mechanism is important only for the light species such as hydrogen or deuterium. • Non-thermal escap...
متن کاملFrom the Escape Property to Escape Analysis
operations for its analysis. We show that the analysis induced by E is very imprecise. Hence, in Section 5 we refine the domain E into the more precise domain ER for escape analysis. In Section 6, we discuss our prototype implementation and experimental results. Section 7 concludes the paper by highlighting the differences between previous proposals and our own approach. Section 8 contains the ...
متن کاملEscape From Traditions Toward The Fertility Transition
We propose an economic and cultural explanation for the decline of human fertility during the demographic transition. We show that some transformations in the economic and/or cultural structure of a society can imply a fertility transition, that is to say a transition from a traditional high births rate regime to a modern low births rate regime. Furthermore the cultural structure of the populat...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2011
ISSN: 2041-8205,2041-8213
DOI: 10.1088/2041-8205/729/2/l24