Dynamics of nanodust particles emitted from elongated initial orbits

Author： Czechowski A.   Mann I.  

Publisher： Edp Sciences

E-ISSN： 1432-0746|617|issue|A43-A43

ISSN： 0004-6361

Source： Astronomy & Astrophysics, Vol.617, Iss.issue, 2018-09, pp. : A43-A43

Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.

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Abstract

Context. Because of high charge-to-mass ratio, the nanodust dynamics near the Sun is determined by interplay between the gravity and the electromagnetic forces. Depending on the point where it was created, a nanodust particle can either be trapped in a non-Keplerian orbit, or escape away from the Sun, reaching large velocity. The main source of nanodust is collisional fragmentation of larger dust grains, moving in approximately circular orbits inside the circumsolar dust cloud. Nanodust can also be released from cometary bodies, with highly elongated orbits.

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