인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
Context. The orbits of the four small moons in the Pluto-Charon system, Styx, Nix, Kerberos, and Hydra, are circumbinary, as Pluto and Charon form a binary dwarf planet. Consequently, the orbit of each moon is characterized by a number of frequencies, arising from the central binary and the mutual gravitational interactions. Aims. In this work, we identify the most prominent of these forced frequencies using fast Fourier transforms. Methods. Two methods were implemented, a semi-analytic and a numerical one, and comparisons are made. Results. The results indicate that as a first approximation, moon orbits may well be modeled as the superposition of a series of inevitable oscillations induced by Pluto and Charon, deviating from circular orbits, even if the eccentricity is set to zero. Moreover, the mutual gravitational effects are significant in their long-term evolution, especially for the lighter moons Styx and Kerberos, activating modes that dominate the low-frequency region of the power spectrum. This becomes evident through the comparison of simulations where only one moon is included along with the binary dwarf planet and simulations of the entire six-body system. These modes become noticeable over long integration times and may affect the orbits of the lighter moons of the system.
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.