Neutral Points at the Cometary Diamagnetic Cavity Boundary as Possible Source of Cometary Rays

Details Neutral Points at the Cometary Diamagnetic Cavity Boundary as Possible Source of Cometary Rays Neutral Points at the Cometary Diamagnetic Cavity Boundary as Possible Source of Cometary Rays

May 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998em%26p...81..123i&link_type=abstract

Earth, Moon, and Planets, v. 81, Issue 2, p. 123-133 (2000).

Physics

2

Cometary Rays, Comets, Neutral Points

Scientific paper

The point source of neutral gas undergoing ionization and expanding into an uniform magnetic field is considered. Friction between the neutral and ionized particles results in the formation of the magnetic field barrier and diamagnetic cavity surrounding the source. At least one neutral point inevitably arises at the boundary of the cavity. When the neutral gas production rate grows, two neutral points may arise at this boundary. In the vicinity of these points magnetic field lines converge, along with the plasma flow which is magnetic field aligned in the steady state. As a result, two plasma jets originate from the neutral points. Possible relation of these jets to cometary rays is discussed.

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