搜索结果: 151-165 共查到“知识库 行星物理学”相关记录322条 . 查询时间(0.375 秒)
The HARPS search for southern extra-solar planets. XXX. Planetary systems around stars with solar-like magnetic cycles and short-term activity variation
stars: planetary systems – techniques: radial velocities – stars: activity – stars: individual: HD7199 – stars: individual
2011/9/30
We present the discovery of four new long-period planets within the HARPS high-precision sample: \object{HD137388}b ($M\sin{i}$ = 0.22 $M_J$), \object{HD204941}b ($M\sin{i}$ = 0.27 $M_J$), \object{HD7...
The Great Escape: How Exoplanets and Smaller Bodies Desert Dying Stars
planet-star interactions planets supernovae: general
2011/9/29
Mounting discoveries of extrasolar planets orbiting post-main sequence stars motivate studies aimed at understanding the fate of these planets. In the traditional "adiabatic" approximation, a secondar...
Formation of galactic nuclei with multiple supermassive black holes at high redshifts
black hole physics – galaxies:nuclei – galaxies:evolution – galaxies:high redshift – galaxies:kinematics dynamics
2011/9/27
We examine the formation of groups of multiple supermassive black holes (SMBHs) in gas-poor galactic nuclei due to the high merger rate of galaxies at high redshifts. We calculate the relative likelih...
由距离地面不同高度做迈克尔逊—莫雷实验得出三种不同的结论，充分证实了“以太”是分层次而存在的，同时依据古生物化石钟，古生物学，古地质学的研究成果以及大量的现代观测实验成果，并运用庞加莱猜想三维拓朴空间学原理，结合开普勒行星三大运动定律的拓展方程的思想精髓，把东方的“元气论”和西方的“以太论”的哲学思想有机的融入了现代科学体系之中，成功地推论出行星运动的向心力就是依据于庞加莱猜想三维拓朴量化空间运动...
主带小行星的动力学模拟
共振 主带小行星 轨道演化
2012/9/11
采用接近真实太阳系的动力学模型，对主带小行星的动力学演化进行了数值模拟。计算的起始时间是儒略日JD= 2:454 000 5 £ 106，计算的时间长度为100 万年。力学模型采用n +m 体模型，计算程序基于小行星轨道演化的软件Orbit9。对演化结果进行分析可以发现测试粒子与木星的平运动共振对测试粒子稳定性的不同作用，以及在2 : 3、3 : 4 共振处不同初始! 值对测试粒子演化...
It is here argued that the problem of a meaningful defininition of "planet" is best addressed on a dynamical basis; we show that in this way it is possible to obtain a planet de¯nition that is bo...
The exo-planetary system of 55 cancri and the titius-bode law
exo-planetary system 55 cancri titius-bode law
2009/7/10
The exo-planetary system of 55 cancri and the titius-bode law。
An atlas of synthetic line profiles of planetary nebulae
line profiles synthetic planetary nebulae
2009/7/10
An atlas of synthetic line profiles of planetary nebulae。
Gemini Mid-IR Polarimetry of NGC 1068。
Towards an Understanding of the Formation of Stars and Planets。
The Use of KS Band Photometric Excesses to Investigate H2 Emission in Planetary Nebulae
KS Band Photometric Planetary Nebulae H2 Emission
2009/6/30
The Use of KS Band Photometric Excesses to Investigate H2 Emission in Planetary Nebulae。
Expansion Parallax for the Compact Planetary Nebula M2-43
Parallax Compact Planetary Nebula M2-43
2009/6/30
Expansion Parallax for the Compact Planetary Nebula M2-43。
Orbit of Comet C/1853 E1 (Secchi)。
Galactic Planetary Nebulae with Wolf-Rayet Nuclei III. Kinematical Analysis of a Large Sample of Nebulae
Galactic Planetary Nebulae inematical Analysis Wolf-Rayet Nuclei III
2009/6/30
Galactic Planetary Nebulae with Wolf-Rayet Nuclei III. Kinematical Analysis of a Large Sample of Nebulae。
Revised Diagnostic Diagrams for Planetary Nebulae。