机构

• 国家天文台 [2]
• 理论物理研究所 [1]
• 长春光学精密机械与物... [1]
• 数学与系统科学研究院 [1]
• 云南天文台 [1]

采集方式

• OAI收割 [6]

内容类型

• 期刊论文 [5]
• 会议论文 [1]

发表日期

• 2021 [1]
• 2020 [2]
• 2009 [1]
• 1999 [2]

学科主题

• Physics [1]
• 天文学 [1]
• 天文学::星系与宇宙... [1]

筛选

浏览/检索结果: 共6条，第1-6条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 The possible equation of state of dark matter in low surface brightness galaxies 期刊论文  OAI收割 CHINESE PHYSICS C, 2021, 卷号: 45, 期号: 10 作者:  Gong XB(龚小波);  Tang MR(唐美荣);  Xu, Zhaoyi   |  收藏  |  浏览/下载：100/0  |  提交时间：2022/01/17 galaxy  dark matter-galaxy  rotation curves   The Rotation Curve, Mass Distribution, and Dark Matter Content of the Milky Way from Classical Cepheids 期刊论文  OAI收割 ASTROPHYSICAL JOURNAL LETTERS, 2020, 卷号: 895, 期号: 1, 页码: 8 作者:  Ablimit, Iminhaji;  Zhao, Gang;  Flynn, Chris;  Bird, Sarah A.   |  收藏  |  浏览/下载：17/0  |  提交时间：2021/12/06 Dark matter density  Galaxy mass distribution  Milky Way dark matter halo  Milky Way dynamics  Cepheid variable stars  Galaxy rotation curves  Dark matter   Orbital Evidences for Dark-matter-free Milky Way Dwarf Spheroidal Galaxies 期刊论文  OAI收割 ASTROPHYSICAL JOURNAL, 2020, 卷号: 892, 期号: 1, 页码: 12 作者:  Hammer, Francois;  Yang, Yanbin;  Arenou, Frederic;  Wang, Jianling;  Li, Hefan   |  收藏  |  浏览/下载：26/0  |  提交时间：2021/12/06 Dwarf spheroidal galaxies  Dwarf galaxies  Observational cosmology  Dark matter  Galaxy rotation curves  Circumgalactic medium  Milky Way Galaxy  Magellanic Clouds  Magellanic Stream  Local Group   Study on experiment of grinding SiC mirror with fixed abrasive (EI CONFERENCE) 会议论文  OAI收割 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, November 19, 2008 - November 21, 2008, Chengdu, China 作者:  Wang X.;  Zhang X.-J.;  Wang X.;  Wang X. 收藏  |  浏览/下载：19/0  |  提交时间：2013/03/25 A brand-new technology for manufacturing SiC reflecting mirror that is different from the traditional method is adopted  which is called as fixed abrasive surfacing technology. Not only the new method achieves better mirror quality with bigger diamond in diameter quickly  but also because of the fixed motion between the abrasive and workpiece and it will be good for surface finishing. During experiment  material removal characteristic which is on SiC under certain rotation speed and pressure by W7  W5  W3.5  W1.5 pellets has been tested. Through those removal curves  we come to a conclusion that the technology not only has a higher removal rate  but also has much more stability. In addition  the surface roughness experiment is mentioned. In the first stage  we achieved a mirror with surface roughness 42.758nm rms with W7 pellets. The surface roughness is descending as we change pellets with smaller diamond in diameter . At the end of experiment  a smooth surface with roughness 1.591nm rms has been achieved after using W1.5 pellets. Experiment results indicate that the technology which manufactures SiC reflecting mirror with fixed abrasive is able to replace the traditional slurry abrasive completely in certain finishing phase and also has a great foreground in application. 2009 SPIE.   Fermion-fermion stars 期刊论文  OAI收割 COMMUNICATIONS IN THEORETICAL PHYSICS, 1999, 卷号: 32, 期号: 3, 页码: 457-462 作者:  Jin, KJ;  Zhang, YZ   |  收藏  |  浏览/下载：10/0  |  提交时间：2018/07/30 dark matter  fermion stars  rotation curves   Fermion-fermion stars 期刊论文  OAI收割 COMMUNICATIONS IN THEORETICAL PHYSICS, 1999, 卷号: 32, 期号: 3, 页码: 457-462 作者:  Jin, KJ;  Zhang, YZ;  Jin, KJ , No Jiaotong Univ, Dept Phys, Beijing 100044, Peoples R China.   |  收藏  |  浏览/下载：15/0  |  提交时间：2012/08/29 Boson Stars  Rotation Curves  Stability  Galaxies