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Constraints on the Assembly History of the Milky Way's Smooth, Diffuse Stellar Halo from the Metallicity-dependent, Radially Dominated Velocity Anisotropy Profiles Probed with K Giants and BHB Stars Using LAMOST, SDSS/SEGUE, and Gaia
Bird, Sarah A.1,2,3,4; Xue, Xiang-Xiang1,5; Liu, Chao1,5; Shen, Juntai6,7; Flynn, Chris8,9; Yang, Chengqun4; Zhao, Gang1,5; Tian, Hai-Jun2,3
2021-09-01
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume919Issue:1Pages:27
AbstractWe analyze the anisotropy profile of the Milky Way's smooth, diffuse stellar halo using the Sloan Digital Sky Survey (SDSS) SEGUE blue horizontal branch stars and the SDSS/SEGUE and LAMOST K giants. These intrinsically luminous stars allow us to probe the halo to approximately 100 kpc from the Galactic center. Line-of-sight velocities, distances, metallicities, and proper motions are available for all stars via SDSS/SEGUE, LAMOST, and Gaia, and we use these data to construct a full 7D set consisting of positions, space motions, and metallicity. We remove substructure from our samples using integrals of motion based on the method of Xue et al. We find radially dominated kinematic profiles with nearly constant anisotropy within 20 kpc, beyond which the anisotropy profile gently declines but remains radially dominated to the farthest extents of our sample. Independent of star type or substructure removal, the anisotropy depends on metallicity, such that the orbits of the stars become less radial with decreasing metallicity. For -1.7 < [Fe/H] < -1, the smooth, diffuse halo anisotropy profile begins to decline at Galactocentric distances similar to 20 kpc, from beta similar to 0.9 to 0.7 for K giants and from beta similar to 0.8 to 0.1 for blue horizontal branch stars. For [Fe/H] < -1.7, the smooth, diffuse halo anisotropy remains constant along all distances with 0.2 < beta< 0.7 depending on the metallicity range probed, but independent of star type. These samples are ideal for estimating the total Galactic mass as they represent the virialized stellar halo system.
Funding OrganizationNational Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Space Station Telescope project ; Chinese Space Station Telescope project ; "111" Project of the Ministry of Education ; "111" Project of the Ministry of Education ; NSFC ; NSFC ; Hubei Provincial Outstanding Youth Fund ; Hubei Provincial Outstanding Youth Fund ; 2018 Heidelberg Summer School for Gaia Data and Science ; 2018 Heidelberg Summer School for Gaia Data and Science ; Aliyun Fellowship ; Aliyun Fellowship ; Chinese Academy of Sciences President's International Fellowship Initiative Grant ; Chinese Academy of Sciences President's International Fellowship Initiative Grant ; Postdoctoral Scholar's Fellowship of LAMOST ; Postdoctoral Scholar's Fellowship of LAMOST ; Beckwith Trust ; Beckwith Trust ; National Development and Reform Commission ; National Development and Reform Commission ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; National Science Foundation ; National Science Foundation ; U.S. Department of Energy Office of Science ; U.S. Department of Energy Office of Science ; University of Arizona ; University of Arizona ; Brazilian Participation Group ; Brazilian Participation Group ; Brookhaven National Laboratory ; Brookhaven National Laboratory ; University of Cambridge ; University of Cambridge ; Carnegie Mellon University ; Carnegie Mellon University ; University of Florida ; University of Florida ; French Participation Group ; French Participation Group ; German Participation Group ; German Participation Group ; Harvard University ; Harvard University ; Instituto de Astrofisica de Canarias ; Instituto de Astrofisica de Canarias ; Michigan State/Notre Dame/JINA Participation Group ; Michigan State/Notre Dame/JINA Participation Group ; Johns Hopkins University ; Johns Hopkins University ; Lawrence Berkeley National Laboratory ; Lawrence Berkeley National Laboratory ; Max Planck Institute for Astrophysics ; Max Planck Institute for Astrophysics ; Max Planck Institute for Extraterrestrial Physics ; Max Planck Institute for Extraterrestrial Physics ; New Mexico State University ; New Mexico State University ; New York University ; New York University ; Ohio State University ; Ohio State University ; Pennsylvania State University ; Pennsylvania State University ; University of Portsmouth ; University of Portsmouth ; Princeton University ; Princeton University ; Spanish Participation Group ; Spanish Participation Group ; University of Tokyo ; University of Tokyo ; University of Utah ; University of Utah ; Vanderbilt University ; Vanderbilt University ; University of Virginia ; University of Virginia ; University of Washington ; University of Washington ; Yale University ; Yale University ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Space Station Telescope project ; Chinese Space Station Telescope project ; "111" Project of the Ministry of Education ; "111" Project of the Ministry of Education ; NSFC ; NSFC ; Hubei Provincial Outstanding Youth Fund ; Hubei Provincial Outstanding Youth Fund ; 2018 Heidelberg Summer School for Gaia Data and Science ; 2018 Heidelberg Summer School for Gaia Data and Science ; Aliyun Fellowship ; Aliyun Fellowship ; Chinese Academy of Sciences President's International Fellowship Initiative Grant ; Chinese Academy of Sciences President's International Fellowship Initiative Grant ; Postdoctoral Scholar's Fellowship of LAMOST ; Postdoctoral Scholar's Fellowship of LAMOST ; Beckwith Trust ; Beckwith Trust ; National Development and Reform Commission ; National Development and Reform Commission ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; National Science Foundation ; National Science Foundation ; U.S. Department of Energy Office of Science ; U.S. Department of Energy Office of Science ; University of Arizona ; University of Arizona ; Brazilian Participation Group ; Brazilian Participation Group ; Brookhaven National Laboratory ; Brookhaven National Laboratory ; University of Cambridge ; University of Cambridge ; Carnegie Mellon University ; Carnegie Mellon University ; University of Florida ; University of Florida ; French Participation Group ; French Participation Group ; German Participation Group ; German Participation Group ; Harvard University ; Harvard University ; Instituto de Astrofisica de Canarias ; Instituto de Astrofisica de Canarias ; Michigan State/Notre Dame/JINA Participation Group ; Michigan State/Notre Dame/JINA Participation Group ; Johns Hopkins University ; Johns Hopkins University ; Lawrence Berkeley National Laboratory ; Lawrence Berkeley National Laboratory ; Max Planck Institute for Astrophysics ; Max Planck Institute for Astrophysics ; Max Planck Institute for Extraterrestrial Physics ; Max Planck Institute for Extraterrestrial Physics ; New Mexico State University ; New Mexico State University ; New York University ; New York University ; Ohio State University ; Ohio State University ; Pennsylvania State University ; Pennsylvania State University ; University of Portsmouth ; University of Portsmouth ; Princeton University ; Princeton University ; Spanish Participation Group ; Spanish Participation Group ; University of Tokyo ; University of Tokyo ; University of Utah ; University of Utah ; Vanderbilt University ; Vanderbilt University ; University of Virginia ; University of Virginia ; University of Washington ; University of Washington ; Yale University ; Yale University ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Space Station Telescope project ; Chinese Space Station Telescope project ; "111" Project of the Ministry of Education ; "111" Project of the Ministry of Education ; NSFC ; NSFC ; Hubei Provincial Outstanding Youth Fund ; Hubei Provincial Outstanding Youth Fund ; 2018 Heidelberg Summer School for Gaia Data and Science ; 2018 Heidelberg Summer School for Gaia Data and Science ; Aliyun Fellowship ; Aliyun Fellowship ; Chinese Academy of Sciences President's International Fellowship Initiative Grant ; Chinese Academy of Sciences President's International Fellowship Initiative Grant ; Postdoctoral Scholar's Fellowship of LAMOST ; Postdoctoral Scholar's Fellowship of LAMOST ; Beckwith Trust ; Beckwith Trust ; National Development and Reform Commission ; National Development and Reform Commission ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; National Science Foundation ; National Science Foundation ; U.S. Department of Energy Office of Science ; U.S. Department of Energy Office of Science ; University of Arizona ; University of Arizona ; Brazilian Participation Group ; Brazilian Participation Group ; Brookhaven National Laboratory ; Brookhaven National Laboratory ; University of Cambridge ; University of Cambridge ; Carnegie Mellon University ; Carnegie Mellon University ; University of Florida ; University of Florida ; French Participation Group ; French Participation Group ; German Participation Group ; German Participation Group ; Harvard University ; Harvard University ; Instituto de Astrofisica de Canarias ; Instituto de Astrofisica de Canarias ; Michigan State/Notre Dame/JINA Participation Group ; Michigan State/Notre Dame/JINA Participation Group ; Johns Hopkins University ; Johns Hopkins University ; Lawrence Berkeley National Laboratory ; Lawrence Berkeley National Laboratory ; Max Planck Institute for Astrophysics ; Max Planck Institute for Astrophysics ; Max Planck Institute for Extraterrestrial Physics ; Max Planck Institute for Extraterrestrial Physics ; New Mexico State University ; New Mexico State University ; New York University ; New York University ; Ohio State University ; Ohio State University ; Pennsylvania State University ; Pennsylvania State University ; University of Portsmouth ; University of Portsmouth ; Princeton University ; Princeton University ; Spanish Participation Group ; Spanish Participation Group ; University of Tokyo ; University of Tokyo ; University of Utah ; University of Utah ; Vanderbilt University ; Vanderbilt University ; University of Virginia ; University of Virginia ; University of Washington ; University of Washington ; Yale University ; Yale University ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Space Station Telescope project ; Chinese Space Station Telescope project ; "111" Project of the Ministry of Education ; "111" Project of the Ministry of Education ; NSFC ; NSFC ; Hubei Provincial Outstanding Youth Fund ; Hubei Provincial Outstanding Youth Fund ; 2018 Heidelberg Summer School for Gaia Data and Science ; 2018 Heidelberg Summer School for Gaia Data and Science ; Aliyun Fellowship ; Aliyun Fellowship ; Chinese Academy of Sciences President's International Fellowship Initiative Grant ; Chinese Academy of Sciences President's International Fellowship Initiative Grant ; Postdoctoral Scholar's Fellowship of LAMOST ; Postdoctoral Scholar's Fellowship of LAMOST ; Beckwith Trust ; Beckwith Trust ; National Development and Reform Commission ; National Development and Reform Commission ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; National Science Foundation ; National Science Foundation ; U.S. Department of Energy Office of Science ; U.S. Department of Energy Office of Science ; University of Arizona ; University of Arizona ; Brazilian Participation Group ; Brazilian Participation Group ; Brookhaven National Laboratory ; Brookhaven National Laboratory ; University of Cambridge ; University of Cambridge ; Carnegie Mellon University ; Carnegie Mellon University ; University of Florida ; University of Florida ; French Participation Group ; French Participation Group ; German Participation Group ; German Participation Group ; Harvard University ; Harvard University ; Instituto de Astrofisica de Canarias ; Instituto de Astrofisica de Canarias ; Michigan State/Notre Dame/JINA Participation Group ; Michigan State/Notre Dame/JINA Participation Group ; Johns Hopkins University ; Johns Hopkins University ; Lawrence Berkeley National Laboratory ; Lawrence Berkeley National Laboratory ; Max Planck Institute for Astrophysics ; Max Planck Institute for Astrophysics ; Max Planck Institute for Extraterrestrial Physics ; Max Planck Institute for Extraterrestrial Physics ; New Mexico State University ; New Mexico State University ; New York University ; New York University ; Ohio State University ; Ohio State University ; Pennsylvania State University ; Pennsylvania State University ; University of Portsmouth ; University of Portsmouth ; Princeton University ; Princeton University ; Spanish Participation Group ; Spanish Participation Group ; University of Tokyo ; University of Tokyo ; University of Utah ; University of Utah ; Vanderbilt University ; Vanderbilt University ; University of Virginia ; University of Virginia ; University of Washington ; University of Washington ; Yale University ; Yale University
DOI10.3847/1538-4357/abfa9e
WOS KeywordHORIZONTAL-BRANCH STARS ; DIGITAL SKY SURVEY ; TRACING GALAXY FORMATION ; COLD DARK-MATTER ; GALACTIC HALO ; RR LYRAE ; SOLAR NEIGHBORHOOD ; PHASE-SPACE ; DYNAMICAL MODELS ; SPIRAL GALAXIES
Language英语
Funding ProjectNational Key R&D Program of China[2019YFA0405500] ; National Key R&D Program of China[2018YFA0404501] ; National Natural Science Foundation of China[11988101] ; National Natural Science Foundation of China[11873052] ; National Natural Science Foundation of China[11890694] ; National Natural Science Foundation of China[11835057] ; National Natural Science Foundation of China[11773052] ; National Natural Science Foundation of China[11761131016] ; National Natural Science Foundation of China[12025302] ; Chinese Space Station Telescope project ; "111" Project of the Ministry of Education[B20019] ; NSFC[11873034] ; NSFC[U1731108] ; NSFC[U1731124] ; Hubei Provincial Outstanding Youth Fund[2019CFA087] ; 2018 Heidelberg Summer School for Gaia Data and Science ; Aliyun Fellowship ; Chinese Academy of Sciences President's International Fellowship Initiative Grant[2016PE010] ; Chinese Academy of Sciences President's International Fellowship Initiative Grant[2021PM0055] ; Postdoctoral Scholar's Fellowship of LAMOST ; Beckwith Trust ; National Development and Reform Commission ; Alfred P. Sloan Foundation ; National Science Foundation ; U.S. Department of Energy Office of Science ; University of Arizona ; Brazilian Participation Group ; Brookhaven National Laboratory ; University of Cambridge ; Carnegie Mellon University ; University of Florida ; French Participation Group ; German Participation Group ; Harvard University ; Instituto de Astrofisica de Canarias ; Michigan State/Notre Dame/JINA Participation Group ; Johns Hopkins University ; Lawrence Berkeley National Laboratory ; Max Planck Institute for Astrophysics ; Max Planck Institute for Extraterrestrial Physics ; New Mexico State University ; New York University ; Ohio State University ; Pennsylvania State University ; University of Portsmouth ; Princeton University ; Spanish Participation Group ; University of Tokyo ; University of Utah ; Vanderbilt University ; University of Virginia ; University of Washington ; Yale University
Funding OrganizationNational Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Space Station Telescope project ; Chinese Space Station Telescope project ; "111" Project of the Ministry of Education ; "111" Project of the Ministry of Education ; NSFC ; NSFC ; Hubei Provincial Outstanding Youth Fund ; Hubei Provincial Outstanding Youth Fund ; 2018 Heidelberg Summer School for Gaia Data and Science ; 2018 Heidelberg Summer School for Gaia Data and Science ; Aliyun Fellowship ; Aliyun Fellowship ; Chinese Academy of Sciences President's International Fellowship Initiative Grant ; Chinese Academy of Sciences President's International Fellowship Initiative Grant ; Postdoctoral Scholar's Fellowship of LAMOST ; Postdoctoral Scholar's Fellowship of LAMOST ; Beckwith Trust ; Beckwith Trust ; National Development and Reform Commission ; National Development and Reform Commission ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; National Science Foundation ; National Science Foundation ; U.S. Department of Energy Office of Science ; U.S. Department of Energy Office of Science ; University of Arizona ; University of Arizona ; Brazilian Participation Group ; Brazilian Participation Group ; Brookhaven National Laboratory ; Brookhaven National Laboratory ; University of Cambridge ; University of Cambridge ; Carnegie Mellon University ; Carnegie Mellon University ; University of Florida ; University of Florida ; French Participation Group ; French Participation Group ; German Participation Group ; German Participation Group ; Harvard University ; Harvard University ; Instituto de Astrofisica de Canarias ; Instituto de Astrofisica de Canarias ; Michigan State/Notre Dame/JINA Participation Group ; Michigan State/Notre Dame/JINA Participation Group ; Johns Hopkins University ; Johns Hopkins University ; Lawrence Berkeley National Laboratory ; Lawrence Berkeley National Laboratory ; Max Planck Institute for Astrophysics ; Max Planck Institute for Astrophysics ; Max Planck Institute for Extraterrestrial Physics ; Max Planck Institute for Extraterrestrial Physics ; New Mexico State University ; New Mexico State University ; New York University ; New York University ; Ohio State University ; Ohio State University ; Pennsylvania State University ; Pennsylvania State University ; University of Portsmouth ; University of Portsmouth ; Princeton University ; Princeton University ; Spanish Participation Group ; Spanish Participation Group ; University of Tokyo ; University of Tokyo ; University of Utah ; University of Utah ; Vanderbilt University ; Vanderbilt University ; University of Virginia ; University of Virginia ; University of Washington ; University of Washington ; Yale University ; Yale University ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Space Station Telescope project ; Chinese Space Station Telescope project ; "111" Project of the Ministry of Education ; "111" Project of the Ministry of Education ; NSFC ; NSFC ; Hubei Provincial Outstanding Youth Fund ; Hubei Provincial Outstanding Youth Fund ; 2018 Heidelberg Summer School for Gaia Data and Science ; 2018 Heidelberg Summer School for Gaia Data and Science ; Aliyun Fellowship ; Aliyun Fellowship ; Chinese Academy of Sciences President's International Fellowship Initiative Grant ; Chinese Academy of Sciences President's International Fellowship Initiative Grant ; Postdoctoral Scholar's Fellowship of LAMOST ; Postdoctoral Scholar's Fellowship of LAMOST ; Beckwith Trust ; Beckwith Trust ; National Development and Reform Commission ; National Development and Reform Commission ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; National Science Foundation ; National Science Foundation ; U.S. Department of Energy Office of Science ; U.S. Department of Energy Office of Science ; University of Arizona ; University of Arizona ; Brazilian Participation Group ; Brazilian Participation Group ; Brookhaven National Laboratory ; Brookhaven National Laboratory ; University of Cambridge ; University of Cambridge ; Carnegie Mellon University ; Carnegie Mellon University ; University of Florida ; University of Florida ; French Participation Group ; French Participation Group ; German Participation Group ; German Participation Group ; Harvard University ; Harvard University ; Instituto de Astrofisica de Canarias ; Instituto de Astrofisica de Canarias ; Michigan State/Notre Dame/JINA Participation Group ; Michigan State/Notre Dame/JINA Participation Group ; Johns Hopkins University ; Johns Hopkins University ; Lawrence Berkeley National Laboratory ; Lawrence Berkeley National Laboratory ; Max Planck Institute for Astrophysics ; Max Planck Institute for Astrophysics ; Max Planck Institute for Extraterrestrial Physics ; Max Planck Institute for Extraterrestrial Physics ; New Mexico State University ; New Mexico State University ; New York University ; New York University ; Ohio State University ; Ohio State University ; Pennsylvania State University ; Pennsylvania State University ; University of Portsmouth ; University of Portsmouth ; Princeton University ; Princeton University ; Spanish Participation Group ; Spanish Participation Group ; University of Tokyo ; University of Tokyo ; University of Utah ; University of Utah ; Vanderbilt University ; Vanderbilt University ; University of Virginia ; University of Virginia ; University of Washington ; University of Washington ; Yale University ; Yale University ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Space Station Telescope project ; Chinese Space Station Telescope project ; "111" Project of the Ministry of Education ; "111" Project of the Ministry of Education ; NSFC ; NSFC ; Hubei Provincial Outstanding Youth Fund ; Hubei Provincial Outstanding Youth Fund ; 2018 Heidelberg Summer School for Gaia Data and Science ; 2018 Heidelberg Summer School for Gaia Data and Science ; Aliyun Fellowship ; Aliyun Fellowship ; Chinese Academy of Sciences President's International Fellowship Initiative Grant ; Chinese Academy of Sciences President's International Fellowship Initiative Grant ; Postdoctoral Scholar's Fellowship of LAMOST ; Postdoctoral Scholar's Fellowship of LAMOST ; Beckwith Trust ; Beckwith Trust ; National Development and Reform Commission ; National Development and Reform Commission ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; National Science Foundation ; National Science Foundation ; U.S. Department of Energy Office of Science ; U.S. Department of Energy Office of Science ; University of Arizona ; University of Arizona ; Brazilian Participation Group ; Brazilian Participation Group ; Brookhaven National Laboratory ; Brookhaven National Laboratory ; University of Cambridge ; University of Cambridge ; Carnegie Mellon University ; Carnegie Mellon University ; University of Florida ; University of Florida ; French Participation Group ; French Participation Group ; German Participation Group ; German Participation Group ; Harvard University ; Harvard University ; Instituto de Astrofisica de Canarias ; Instituto de Astrofisica de Canarias ; Michigan State/Notre Dame/JINA Participation Group ; Michigan State/Notre Dame/JINA Participation Group ; Johns Hopkins University ; Johns Hopkins University ; Lawrence Berkeley National Laboratory ; Lawrence Berkeley National Laboratory ; Max Planck Institute for Astrophysics ; Max Planck Institute for Astrophysics ; Max Planck Institute for Extraterrestrial Physics ; Max Planck Institute for Extraterrestrial Physics ; New Mexico State University ; New Mexico State University ; New York University ; New York University ; Ohio State University ; Ohio State University ; Pennsylvania State University ; Pennsylvania State University ; University of Portsmouth ; University of Portsmouth ; Princeton University ; Princeton University ; Spanish Participation Group ; Spanish Participation Group ; University of Tokyo ; University of Tokyo ; University of Utah ; University of Utah ; Vanderbilt University ; Vanderbilt University ; University of Virginia ; University of Virginia ; University of Washington ; University of Washington ; Yale University ; Yale University ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Space Station Telescope project ; Chinese Space Station Telescope project ; "111" Project of the Ministry of Education ; "111" Project of the Ministry of Education ; NSFC ; NSFC ; Hubei Provincial Outstanding Youth Fund ; Hubei Provincial Outstanding Youth Fund ; 2018 Heidelberg Summer School for Gaia Data and Science ; 2018 Heidelberg Summer School for Gaia Data and Science ; Aliyun Fellowship ; Aliyun Fellowship ; Chinese Academy of Sciences President's International Fellowship Initiative Grant ; Chinese Academy of Sciences President's International Fellowship Initiative Grant ; Postdoctoral Scholar's Fellowship of LAMOST ; Postdoctoral Scholar's Fellowship of LAMOST ; Beckwith Trust ; Beckwith Trust ; National Development and Reform Commission ; National Development and Reform Commission ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; National Science Foundation ; National Science Foundation ; U.S. Department of Energy Office of Science ; U.S. Department of Energy Office of Science ; University of Arizona ; University of Arizona ; Brazilian Participation Group ; Brazilian Participation Group ; Brookhaven National Laboratory ; Brookhaven National Laboratory ; University of Cambridge ; University of Cambridge ; Carnegie Mellon University ; Carnegie Mellon University ; University of Florida ; University of Florida ; French Participation Group ; French Participation Group ; German Participation Group ; German Participation Group ; Harvard University ; Harvard University ; Instituto de Astrofisica de Canarias ; Instituto de Astrofisica de Canarias ; Michigan State/Notre Dame/JINA Participation Group ; Michigan State/Notre Dame/JINA Participation Group ; Johns Hopkins University ; Johns Hopkins University ; Lawrence Berkeley National Laboratory ; Lawrence Berkeley National Laboratory ; Max Planck Institute for Astrophysics ; Max Planck Institute for Astrophysics ; Max Planck Institute for Extraterrestrial Physics ; Max Planck Institute for Extraterrestrial Physics ; New Mexico State University ; New Mexico State University ; New York University ; New York University ; Ohio State University ; Ohio State University ; Pennsylvania State University ; Pennsylvania State University ; University of Portsmouth ; University of Portsmouth ; Princeton University ; Princeton University ; Spanish Participation Group ; Spanish Participation Group ; University of Tokyo ; University of Tokyo ; University of Utah ; University of Utah ; Vanderbilt University ; Vanderbilt University ; University of Virginia ; University of Virginia ; University of Washington ; University of Washington ; Yale University ; Yale University
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000698821300001
PublisherIOP PUBLISHING LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/75780
Collection中国科学院国家天文台
Corresponding AuthorBird, Sarah A.
Affiliation1.Chinese Acad Sci, Natl Astron Observ, CAS Key Lab Opt Astron, Beijing 100101, Peoples R China
2.China Three Gorges Univ, Yichang 443002, Peoples R China
3.China Three Gorges Univ, Ctr Astron & Space Sci, Yichang 443002, Peoples R China
4.Shanghai Astron Observ, Key Lab Res Galaxies & Cosmol, 80 Nandan Rd, Shanghai 200030, Peoples R China
5.Chinese Acad Sci, Natl Astron Observ, Key Lab Space Astron & Technol, Beijing 100101, Peoples R China
6.Shanghai Jiao Tong Univ, Sch Phys & Astron, Dept Astron, 800 Dongchuan Rd, Shanghai 200240, Peoples R China
7.Shanghai Key Lab Particle Phys & Cosmol, Key Lab Particle Astrophys & Cosmol MOE, Shanghai 200240, Peoples R China
8.Swinburne Univ Technol, Ctr Astrophys & Supercomp, POB 218, Hawthorn, Vic 3122, Australia
9.ARC Ctr Excellence Gravitat Wave Discovery OzGrav, Brisbane, Qld, Australia
Recommended Citation
GB/T 7714		 Bird, Sarah A.,Xue, Xiang-Xiang,Liu, Chao,et al. Constraints on the Assembly History of the Milky Way's Smooth, Diffuse Stellar Halo from the Metallicity-dependent, Radially Dominated Velocity Anisotropy Profiles Probed with K Giants and BHB Stars Using LAMOST, SDSS/SEGUE, and Gaia[J]. ASTROPHYSICAL JOURNAL,2021,919(1):27.
APA Bird, Sarah A..,Xue, Xiang-Xiang.,Liu, Chao.,Shen, Juntai.,Flynn, Chris.,...&Tian, Hai-Jun.(2021).Constraints on the Assembly History of the Milky Way's Smooth, Diffuse Stellar Halo from the Metallicity-dependent, Radially Dominated Velocity Anisotropy Profiles Probed with K Giants and BHB Stars Using LAMOST, SDSS/SEGUE, and Gaia.ASTROPHYSICAL JOURNAL,919(1),27.
MLA Bird, Sarah A.,et al."Constraints on the Assembly History of the Milky Way's Smooth, Diffuse Stellar Halo from the Metallicity-dependent, Radially Dominated Velocity Anisotropy Profiles Probed with K Giants and BHB Stars Using LAMOST, SDSS/SEGUE, and Gaia".ASTROPHYSICAL JOURNAL 919.1(2021):27.
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