Thermodynamic model of the activity of the comet 103P/Hartley  

作　　者：Marcin Wesolowski 

机构地区：[1]College of Natural Sciences,Institute of Physics,University of Rzeszów,Pigonia 1 Street,35-310 Rzeszow,Poland

出　　处：《Research in Astronomy and Astrophysics》2021年第12期297-304,共8页天文和天体物理学研究（英文版）

摘　　要：The paper presents three processes related to the dynamics of cometary particles.The following thermodynamic mechanisms were taken into account:quiet sublimation,emission of cometary matter via jet and migration of particles on the surface of the comet 103 P/Hartley.Based on the first two mechanisms,the maximum particle size that can be lifted into the coma was determined.Additionally,in the case of a jet,the angle at which it is emitted from inside the cometary nucleus was determined.However,in the case of migration,the maximum width of individual belts within which a given particle can move was determined.In the context of the discussed mechanisms related to the activity of comet 103 P/Hartley,the coefficient of friction and the structure of the solid or porous particles are of key importance.

关 键 词：comets:general comets:individual:103P/Hartley 

分 类 号：P185.81[天文地球—天文学]