On the shape of cometary halos

Details On the shape of cometary halos On the shape of cometary halos

Feb 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003acasn..44...23c&link_type=abstract

Acta Astronomica Sinica, vol. 44, no. 1, p. 23-27.

Astronomy and Astrophysics

Astronomy

Comets: General, Solar Wind

Scientific paper

There is no conclusion and consensus on the shape of halos. The determination of what kind of curves the halos are described by, has significant meaning for the construction of model and in the understanding of the dynamics of halos. By means of a modified Newton's formula of hydrodynamics, it is shown that the shape of cometary halos is close to a catenary. It is also pointed out that the halos do not correspond to the paraboloidal envelopes of dust grain orbits as discussed by Eddington.

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