Dinamika non gravitasional orbit komet

ARSINI, Dr. rer.nat.M. Farchani Rosyid

2010 | Tesis | S2 Ilmu Fisika

Telah dikaji pengaruh nongravitasional pada gerak komet. Terbentuknya ekor komet ketika mendekati matahari berakibat komet kehilangan massanya secara terus menerus sehingga massa komet berkurang. Oleh karena itu, massa komet dapat dipandang sebagai fungsi waktu. Dalam penelitian ini, kami mempelajari dinamika orbit komet disebabkan komet kehilangan massa karena terbentuknya ekor. Terdapat tiga asumsi peninjauan gerak komet tersebut. Pertama, komet dianggap berbentuk bola. Kedua, komet dianggap berputar dengan cukup cepat sehingga mendapatkan radiasi matahari secara merata. Ketiga, Hamiltonian prinsip aksi terkecil merupakan yang paling mendasar dan massa komet dianggap sebagai salah satu koordinat umum.

The effect of nongravitational on the motion of comet was studied. The tail formation of a comet near the sun leads to the situation in which the comet continually losses a part of its masses so that the mass of the comet decreases monotonically. Therefore, the mass of comet can be regarded as a function of time. In this work, we study the dynamics of the orbit of a comet due to the lost of its mass along the formation of its tail. The consideration of such the motion of a comet is based on three assumptions. First, the comet under consideration is of the form of a ball. Second, the comet rotates so rapidly that the whole of its surface catches the radiation of the sun equally. Third, the Hamiltonian on the least action principle is regarded as most fundamental and then the mass of the comet under consideration is regarded as one of the general coordinates.

Kata Kunci : Komet,Dinamika,Non,gravitasional, comet, dynamics, non-gravitational