منابع مشابه
The Theory of Bodily Tides . I .
The Gerstenkorn-MacDonald-Kaula theory of bodily tides assumes constancy of the geometric lag angle δ , while the Singer-Mignard theory asserts constancy of the time lag ∆t . Each of these two models is tacitly based on a particular law of the geometric lag’s dependence upon the main frequency χ of the tidal flexure. In the theory of Gerstenkorn (1955), MacDonald (1964), and Kaula (1964) δ ∼ χ0...
متن کاملOn the Theory of Bodily Tides
Different theories of bodily tides assume different forms of dependence of the angular lag 8 upon the tidal frequency %. In the old theory (Gerstenkorn 1955, MacDonald 1964, Kaula 1964) the geometric lag angle is assumed constant (i.e., 8 ~ x), while the new theory (Singer 1968; Mignard 1979, 1980) postulates constancy of the time lag At (which is equivalent to saying that 8 ~ j} ). Each partic...
متن کاملBodily tides near spin–orbit resonances
Spin–orbit coupling canbedescribed in two approaches. Thefirstmethod, known as the “MacDonald torque”, is often combined with a convenient assumption that the quality factor Q is frequency-independent. This makes the method inconsistent, because derivation of the expression for theMacDonald torque tacitly fixes the rheology of themantle bymaking Q scale as the inverse tidal frequency. Spin–orbi...
متن کاملPhysics of bodily tides in terrestrial planets and the appropriate scales of dynamical evolution
[1] Any model of tides is based on a specific hypothesis of how lagging depends on the tidal-flexure frequency c. For example, Gerstenkorn (1955), MacDonald (1964), and Kaula (1964) assumed constancy of the geometric lag angle d, while Singer (1968) and Mignard (1979, 1980) asserted constancy of the time lag Dt. Thus each of these two models was based on a certain law of scaling of the geometri...
متن کاملThe Theory of Bodily Tides. I. The Models and the Physics.
Any model of tides is based on a specific hypothesis of how the geometric lag δ1 depends on the tidal-flexure frequency χ. Some authors put δ1 ∼ χ0, the others set δ1 ∼ χ1. The actual dependence determined by the planet’s rheology. A particular form of this dependence will fix the form of the frequency dependence of the tidal quality factor Q . Since at present we know the shape of the function...
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ژورنال
عنوان ژورنال: EPJ Web of Conferences
سال: 2011
ISSN: 2100-014X
DOI: 10.1051/epjconf/20101103002