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All Journal BERKALA FISIKA JOURNAL OF NATURAL SCIENCES AND MATHEMATICS RESEARCH Physics Communication
Muhammad Farchani Rosyid
UGM
Mathematics Physics

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Journal : JOURNAL OF NATURAL SCIENCES AND MATHEMATICS RESEARCH

 1 
Simulation Nongravitational Dynamics of Cometary Orbit -, Arsini; Saefan, Joko; Rosyid, Muhammad Farchani
JOURNAL OF NATURAL SCIENCES AND MATHEMATICS RESEARCH 2015: JNSMR Volume 1 Issue 1 Year 2015
Publisher : Fakultas Ilmu Tarbiyah dan Keguruan, UIN Walisongo

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Abstract

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.  A comet may also accrete the material encountered along its orbit so that its mass increases. Therefore, the mass of a comet can be regarded as a function of time. In this work we study simulation the dynamics of the orbit of a comet due to the lost of its mass along the formation of its tail and the material accretion along its orbit. It is assumed  that the comet under consideration is of the form of a ball and rotates so rapidly that the whole ow its surface catches the radiation of the sun equally.
Quaternionic Version of Rotation Groups and Lorentz Group Rahmawati, Latief; Khalif, Muhammad Ardhi; Rosyid, Muhammad Farchani
JOURNAL OF NATURAL SCIENCES AND MATHEMATICS RESEARCH 2015: JNSMR Volume 1 Issue 1 Year 2015
Publisher : Fakultas Ilmu Tarbiyah dan Keguruan, UIN Walisongo

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Abstract

Quaternionic version of rotation groups and Lorentz Group has been constructed. The rotation groups that has been discussed were quaternionic version of groups , O(3), and SO(3). The Lorentz groups that has been discussed were quaternionic version of groups SL(2;C), O(3; 1), and SOo(3; 1). Starting from the definition of each group, the parameters of the group were obtained. Finally the generators of the group were obtained. The commutation of the generator were also computed. 
Co-Authors Arsini -, Arsini Bachtiar Rifai Dwi Satya Palupi Joko Saefan Latief Rahmawati, Latief Mohammad Apriniyadi Muhammad Ardhi Khalif, Muhammad Ardhi