CAOSP abstracts, Volume: 24, year: 1994
- Author(s): NESLUSAN, L.
- Journal: Contributions of the Astronomical Observatory Skalnate Pleso,
vol. 24, p. 85-100.
- Date: 08/1994
- Title: Can cometary nuclei have originated in collapsing protosolar nebula? Their distribution before and after the collapse.
- Keyword(s): COMETS, COSMOGONY, CELESTIAL MECHANICS, PROTOSOLAR NEBULA
- Pages: 85 -- 100
The idea that comets of the Oort (and also Hills) cloud were already
formed in the interstellar molecular cloud, which was the parent cloud of
protosolar nebula, is suggested. The dynamics of comets in the free-falling
collapse of this nebula is described on the basis of a simplified model. It
appears that, if a homogeneous gas nebula collapses in this way, its border
falls to the centre freely, whereby the nebula always remains homogeneous, no
matter escapes outward, and the motion of a chosen cometary nucleus, located
into the nebula, can be described analytically (the decelerating effect of the
nebular material is assumed to be insignificant). This description is given.
Based on the idea suggested and the above-mentioned simplified model of
collapse, which allows only qualitative conclusions to be drawn, one can claim
that the resultant conception of the cometary population as a whole does not
differ from that regarded as real.
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