VELOCITIES

作品数：200被引量：350H指数：8
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相关机构：中国科学院中南大学科尔盖特大学中国科学院国家空间科学中心更多>>
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Revisiting pulsar velocities using Gaia Data Release 2
《Research in Astronomy and Astrophysics》2021年第6期294-300,共7页Meng Yang Shi Dai Di Li Chao-Wei Tsai Wei-Wei Zhu Jie Zhang 
supported by the National Natural Science Foundation of China(Grant Nos.11988101,11725313 and U2031121);Funding for the DPAC has been provided by national institutions,in particular the institutions participating in the Gaia Multilateral Agreement;S.D.is the recipient of an Australian Research Council Discovery Early Career Award(DE210101738)funded by the Australian Government。
Precise measurements of neutron star(NS)velocities provide critical clues in regard to the supernova physics and evolution of binary systems.Based on Gaia Data Release 2(DR2),we selected a sample of 24 young(<3 Myr)pu...
关键词：(stars:) pulsars:general 
Astrophysical constraints on the proton-to-electron mass ratio with FAST
《Research in Astronomy and Astrophysics》2019年第2期15-24,共10页Xi Chen Simon P.Ellingsen Ying Mei 
supported by the National Natural Science Foundation of China (11590781);the Strategic Priority Research Program of the Chinese Academy of Sciences (CAS; Grant No. XDA04060701);the Key Laboratory for Radio Astronomy, CAS
That the laws of physics are the same at all times and places throughout the Universe is one of the basic assumptions of physics. Astronomical observations provide the only means to test this basic assumption on cosmo...
关键词：ISM:molecules radio lines:ISM techniques:radial VELOCITIES ELEMENTARY particles 
Peculiar in-plane velocities in the outer disc of the Milky Way被引量：1
《Research in Astronomy and Astrophysics》2017年第11期45-58,共14页Hai-Jun Tian Chao Liu Jun-Chen Wan You-Gang Wang Qiao Wang Li-Cai Deng Zi-Huang Cao Yong-Hui Hou Yue-Fei Wang Yue Wu Yong-Heng Zhao 
supported by the Strategic Priority Research Program “The Emergence of Cosmological Structures” of the Chinese Academy of Sciences (Grant No. XDB09000000);the National Key Basic Research Program of China (Grant 2014CB845700);the National Natural Science Foundation of China (NSFC, Grant Nos. 11503012, U1331202 and U1731124);NSFC (Grant Nos. 11373032 and 11333003);NSFC (Grant Nos. 11390372 and 11633004);NSFC (Grant No. 11403056);The Guo Shou Jing Telescope (the Large Sky Area Multi-Object Fiber Spectroscopic Telescope, LAMOST) is a National Major Scientific Project built by the Chinese Academy of Sciences. Funding for the project has been provided by the National Development and Reform Commission. LAMOST is operated and managed by National Astronomical Observatories, Chinese Academy of Sciences
We present the peculiar in-plane velocities derived from LAMOST red clump stars, which are purified and separated by a novel approach into two groups with different ages. The samples are mostly contributed around the ...
关键词：Galaxy： disc -- Galaxy： structure -- Galaxy： kinematics and dynamics -- Galaxy： stellar content -- stars： kinematics and dynamics 
Systematic comparison of initial velocities for neutron stars in different models
《Research in Astronomy and Astrophysics》2016年第7期1-8,共8页Ali Taani 
I have studied the initial velocity（Maxwellian and exponential distributions） and the scale height of isolated old（aged≥10^9yr） neutron stars（NSs） at different Galactocentric distances R in three population mod...
关键词：pulsar general stars neutron stars statistics stars evolution Galaxy structure Galaxy disk galaxies kinematics and dynamics 
Relativistic transformations between global and local velocities of an orbiter under IAU Resolutions
《Research in Astronomy and Astrophysics》2014年第10期1343-1350,共8页Zong-Shui Yang Yi-Chen Han Jing-Hao Liu Song-He Qin Zhen Wan Xiao-Yu Wang Ze-Hao Zhong Kai Zhu Yi Xie 
Supported by the National Natural Science Foundation of China
Einstein＇s general relativity （GR） has become an inevitable part of deep space missions. According to the International Astronomical Union （IAU） Resolutions which are built in the framework of GR, several time sc...
关键词：reference systems -- method numerical-- space vehicles -- techniques radial velocities 
Non-similar collapse of singular isothermal spherical molecular cloud cores with nonzero initial velocities
《Research in Astronomy and Astrophysics》2010年第12期1275-1286,共12页Mohsen Nejad-Asghar 
supported by the Research Institute for Astronomy and Astrophysics of Maragha (RIAAM)
Theoretically, stars formed from the collapse of cores in molecular clouds. Historically, the core had been assumed to be a singular isothermal sphere （SIS）, and the collapse had been investigated in a self-similar ...
关键词：ISM： clouds -- ISM： evolution -- stars： formation - methods： analytical 
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