Jinsi ya kukokotoa Jeans Escape
Jeans Escape ni nini?
Jeans escape describes atmospheric loss when molecular thermal velocity exceeds planet escape velocity, particularly important for light elements.
Mwongozo wa Hatua kwa Hatua
- 1Input planet mass/radius, atmospheric temperature and composition
- 2Calculate escape velocity and thermal velocity
- 3Estimate atmospheric escape timescale
Mifano Iliyotatuliwa
Ingizo
Earth H/He at 6000K exosphere
Matokeo
H escapes easily, He slowly, O/N retain
Why Earth lost primordial atmosphere
Makosa ya Kawaida ya Kuepuka
- ✕Neglecting temperature gradient with altitude
- ✕Assuming steady escape rate
Maswali yanayoulizwa mara kwa mara
Does Mars still lose atmosphere?
Yes, slowly; weak gravity and solar wind accelerate loss.
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