me

Yuqin Chen

Professor

Contact

20A Datun Road, Chaoyang District, Beijing 100101, China

National Astronomical Observatories, CAS

Tel: 010-64863224

Email: cyq@bao.ac.cn

Research Interests

(1) Chemical evolution of the Galaxy

(2) Stellar abundances of late type stars

(3) Stellar nucleosynthesis

Education and Experience

2005.5PresentNational Astronomical ObservatoriesProfessor
2001.52005.4National Astronomical ObservatoriesAssociated Professor
2000.72001.4National Astronomical ObservatoriesAssistant Professor
2000.7Beijing Normal UniversityPhD degree
1998.52000.5Aarhus University, DenmarkPhD student
1994.72000.5Beijing Normal UniversityGraduate student
1990.91994.9Beijing Normal UniversityUndergraduate student

Publications

  1. Chen, Y. Q.; Zhao, G.; Xue, X. X.; Zhao, J. K.; Liang, X. L.; Jia, Y. P.; Yang, C. Q., A Hint of Three-section Halo As Seen from the APOGEE DR14, 2019, ApJ, 871, 216
  2. Chen, Y. Q.; Casagrande, L.; Zhao, G.; Bovy, J.; Silva Aguirre, V.; Zhao, J. K.; Jia, Y. P., Absolute Magnitudes of Seismic Red Clumps in the Kepler Field and SAGA: The Age Dependency of the Distance Scale, 2017, ApJ, 840, 77
  3. Chen, Yu-Qin; Zhao, Gang; Liu, Chao; Ren, Jing; Jia, Yun-Peng; Zhao, Jing-Kun; Luo, A. -Li; Wu, Yue; Zhang, Yong; Hou, Yong-Hui; Wang, Yue-Fei; Yang, Ming, A comparison of stellar atmospheric parameters from the LAMOST and APOGEE datasets, 2015, RAA, 15, 1125
  4. Chen, Y. Q.; Zhao, G.; Carrell, K.; Zhao, J. K.; Tan, K. F.; Nissen, P. E.; Wei, P., Red Giant Stars from Sloan Digital Sky Survey. I. The General Field, 2014ApJ...795...52C
  5. Chen, Y. Q.; Zhao, G.; Mashonkina, L.; Shi, J. R.; Zhang, H. W.; Tan, K. F., A systematic study of NLTE abundances of nearby stars, 2014IAUS..298..400C
  6. Chen, Y. Q.; Zhao, G.; Carrell, K.; Zhao, J. K.; Tan, K. F., The CH(G) Index as a New Criterion for Selecting Red Giant Stars, 2013ApJ...765..156C
  7. Chen, Y. Q.; Zhao, G.; Carrell, K.; Zhao, J. K., The Metallicity Gradient of the Thick Disk Based on Red Horizontal-branch Stars from SDSS DR8, 2011AJ....142..184C
  8. Chen, Y. Q.; Zhao, G.; Zhao, J. K.; Xue, X. X.; Schuster, W. J., Metallicity and Kinematic Distributions of Red Horizontal-branch Stars from the SDSS Survey, 2010AJ....140..500C
  9. Chen, Y. Q.; Zhao, G.; Zhao, J. K., The Absolute Magnitudes of Red Horizontal Branch Stars in the ugriz System, 2009ApJ...702.1336C
  10. Chen, Y. Q.; Zhao, G.; Izumiura, H.; Zhao, J. K.; Liu, Y. J.; Honda, S.; Ohkubo, M., Abundance Pattern of Metal-Rich Stars from 14 Old and 24 Young Stars, 2008AJ....135..618C
  11. Chen, Y. Q.; Zhao, G., The puzzling abundance pattern of HD 134439 and HD 134440, 2006MNRAS.370.2091C
  12. Chen, Y. Q.; Zhao, G., A Comparative Study on Lithium Abundances in Solar-Type Stars With and Without Planets, 2006AJ....131.1816C
  13. Chen, Y. Q.; Nissen, P. E.; Zhao, G., The [Zn/Fe] - [Fe/H] trend for disk and halo stars, 2004A&A...425..697C
  14. Chen, Y. Q.; Zhao, G.; Nissen, P. E.; Bai, G. S.; Qiu, H. M. , Chemical Abundances of Old Metal-rich Stars in the Solar Neighborhood, 2003ApJ...591..925C
  15. Chen, Y. Q.; Nissen, P. E.; Zhao, G.; Asplund, M. , Sulphur abundances in disk stars: A correlation with silicon, 2002A&A...390..225C
  16. Chen, Yu-Qin; Zhao, Gang, Planet Host Stars: Mass, Age and Kinematics, 2002ChJAA...2..151C
  17. Chen, Y. Q.; Zhao, G., The companion of HD 190228: Planet or brown dwarf?, 2001A&A...374L...1C
  18. Chen, Y. Q.; Nissen, P. E.; Benoni, T.; Zhao, G. , Lithium abundances for 185 main-sequence stars: Galactic evolution and stellar depletion of lithium, 2001A&A...371..943C
  19. Chen, Y. Q.; Nissen, P. E.; Zhao, G.; Zhang, H. W.; Benoni, T., Chemical composition of 90 F and G disk dwarfs, 2000A&AS..141..491C
  20. Chen, Y. Q.; Nissen, P. E.; Zhao, G.; Schuster, W. J.; Zhang, H. W.; Benoni, T., Abundances of solar-type field stars : scandium and manganese, 2000LIACo..35..219C
  21. Du, Cuihua; Li, Hefan; Yan, Yepeng; Newberg, Heidi Jo; Shi, Jianrong; Ma, Jun; Chen, Yuqin; Wu, Zhenyu , New Nearby Hypervelocity Stars and Their Spatial Distribution from Gaia DR2, 2019ApJS..244....4D
  22. Du, Cuihua; Li, Hefan; Newberg, Heidi Jo; Chen, Yuqin; Shi, Jianrong; Wu, Zhenyu; Ma, Jun, The Origin of High-velocity Stars from Gaia and LAMOST, 2018ApJ...869L..31D
  23. Zhao, J. K.; Zhao, G.; Aoki, W.; Ishigaki, M. N.; Suda, T.; Matsuno, T.; Shi, J. R.; Xing, Q. F.; Chen, Y. Q.; Oswalt, Terry D.; Kong, X. M.; Liang, X. L., Tracing the Origin of Moving Groups. II. Chemical Abundance of Six Stars in the Halo Stream LAMOST-N1, 2018ApJ...868..105Z
  24. Jia, Yunpeng; Chen, Yuqin; Zhao, Gang; Xue, Xiangxiang; Zhao, Jingkun; Yang, Chengqun; Li, Chengdong, On the Radial Metallicity Gradient and Radial Migration Effect of the Galactic Disk, 2018ApJ...863...93J
  25. Liang, X. L.; Zhao, J. K.; Zhao, G.; Aoki, W.; Ishigaki, M. N.; Matsuno, T.; Chen, Y. Q.; Kong, X. M.; Shi, J. R.; Xing, Q. F. , Tracing the Origin of Moving Groups. I. The γ Leo Moving Group with High-resolution Spectra from the Subaru Telescope, 2018ApJ...863....4L
  26. Liu, Shuai; Du, Cuihua; Newberg, Heidi Jo; Chen, Yuqin; Wu, Zhenyu; Ma, Jun; Zhou, Xu; Cao, Zihuang; Hou, Yonghui; Wang, Yuefei; Zhang, Yong , Metallicity and Kinematics of the Galactic Halo from the LAMOST Sample Stars, 2018ApJ...862..163L
  27. Jia, Y. P.; Chen, Y. Q.; Zhao, G.; Bari, M. A.; Zhao, J. K.; Tan, K. F., Abundance patterns of evolved stars with Hipparcos parallaxes and ages based on the APOGEE data base, 2018MNRAS.473.2622J
  28. Liang, X. L.; Zhao, J. K.; Oswalt, T. D.; Chen, Y. Q.; Zhang, L.; Zhao, G., Stellar Stream Candidates in the Solar Neighborhood Found in the LAMOST DR3 and TGAS, 2017ApJ...844..152L
  29. Zhang, X.; Shi, W. B.; Chen, Y. Q.; Zhao, G.; Carrell, K.; Zhao, J. K.; Ruan, G. P.; Liang, Y. C.; Zhou, L.; Ren, H. B.; Zhang, Y.; Hou, Y. H.; Wang, Y. F., The properties of red giant stars along the Sagittarius tidal tails, 2017A&A...597A..54Z 2017/01
  30. Jing, Yingjie; Du, Cuihua; Gu, Jiayin; Jia, Yunpeng; Peng, Xiyan; Chen, Yuqin; Wu, Zhenyu; Ma, Jun; Zhou, Xu; Cao, Zihuang; Hou, Yonghui; Wang, Yuefei;, Kinematics of the Galactic disc from a LAMOST dwarf sample, 2016MNRAS.463.3390J
  31. Fang, Xiang-Song; Zhao, Gang; Zhao, Jing-Kun; Chen, Yu-Qin; Bharat Kumar, Yerra , Stellar activity with LAMOST - I. Spot configuration in Pleiades, 2016MNRAS.463.2494F
  32. Zhao, G.; Mashonkina, L.; Yan, H. L.; Alexeeva, S.; Kobayashi, C.; Pakhomov, Yu.; Shi, J. R.; Sitnova, T.; Tan, K. F.; Zhang, H. W.; Zhang, J. B.; Zhou, Z. M.; Bolte, M.; Chen, Y. Q.; Li, X.; Liu, F.; Zhai, M. , Systematic Non-LTE Study of the -.6 ≤ [Fe/H] ≤ 0.2 F and G Dwarfs in the Solar Neighborhood. II. Abundance Patterns from Li to Eu, 2016ApJ...833..225Z
  33. Ge, Z. S.; Bi, S. L.; Chen, Y. Q.; Li, T. D.; Zhao, J. K.; Liu, K.; Ferguson, J. W.; Wu, Y. Q., Ages of 70 Dwarfs of Three Populations in the Solar Neighborhood: Considering O and C Abundances in Stellar Models, 2016ApJ...833..161G
  34. Yang, Guo-Chao; Liang, Yan-Chun; Spite, Monique; Chen, Yu-Qin; Zhao, Gang; Zhang, Bo; Liu, Guo-Qing; Liu, Yu-Juan; Liu, Nian; Deng, Li-Cai; Spite, Francois; Hill, Vanessa; Zhang, Cai-Xia, Chemical abundance analysis of 19 barium stars, 2016RAA....16...19Y
  35. Yang, X. L.; Chen, Y. Q.; Zhao, G., Chemical Abundances of Member Stars in the Open Cluster NGC 2632 (Praesepe), 2015AJ....150..158Y
  36. Zhao, Jing-Kun; Zhao, Gang; Chen, Yu-Qin; Tan, Ke-Feng; Gao, Meng-Tian; Yang, Ming; Zhang, Yong; Hou, Yong-Hui , Halo stream candidates in the LAMOST DR2, 2015RAA....15.1378Z
  37. Zhao, Jing-Kun; Oswalt, Terry D.; Chen, Yu-Qin; Shi, Jian-Rong; Tan, Ke-Feng; Fang, Xiang-Song; Zhao, Gang; Yang, Ming; Zhang, Yong; Hou, Yong-Hui; Wang, Yue-Fei, CaII H&K emission distribution of ~ 120 000 F, G and K stars in LAMOST DR1, 2015RAA....15.1282Z
  38. Sitnova, T.; Zhao, G.; Mashonkina, L.; Chen, Y.; Liu, F.; Pakhomov, Yu.; Tan, K.; Bolte, M.; Alexeeva, S.; Grupp, F.; Shi, J. -R.; Zhang, H. -W., Systematic Non-LTE Study of the -2.6 < [Fe/H] < 0.2 F and G dwarfs in the Solar Neighborhood. I. Stellar Atmosphere Parameters, 2015ApJ...808..148S
  39. Yang, XiaoLing; Chen, YuQin; Zhao, Gang, Planet host stars in open clusters, 2015SCPMA..58.5593Y
  40. Tian, Z. J.; Bi, S. L.; Yang, W. M.; Chen, Y. Q.; Liu, Z. E.; Liu, K.; Li, T. D.; Ge, Z. S.; Yu, J., Asteroseismic analysis of solar-like star KIC 6225718: constraints on stellar parameters and core overshooting, 2014MNRAS.445.2999T
  41. Li, Xiang; Zhao, Gang; Chen, Yu-Qin; Li, Hai-Ning, A search for strongly Mg-enhanced stars from the Sloan Digital Sky Survey, 2014RAA....14.1423L
  42. Tan, Kefeng; Chen, Yuqin; Carrell, Kenneth; Zhao, Jingkun; Zhao, Gang, Red Giant Stars from the Sloan Digital Sky Survey. II. Distances, 2014ApJ...794...60T
  43. Nissen, P. E.; Chen, Y. Q.; Carigi, L.; Schuster, W. J.; Zhao, G., Carbon and oxygen abundances in stellar populations, 2014A&A...568A..25N
  44. Zhao, J. K.; Zhao, G.; Chen, Y. Q.; Oswalt, T. D.; Tan, K. F.; Zhang, Y., Three Moving Groups Detected in the LAMOST DR1 Archive, 2014ApJ...787...31Z
  45. Wang, Wei; Zhao, Gang; Chen, Yuqin; Liu, Yujuan, Str?mgren-Crawford uvbyβ all sky survey - towards understanding of the Galaxy, 2014IAUS..298..326W
  46. Liu, Shu; Zhao, Gang; Chen, Yu-Qin; Takeda, Yoichi; Honda, Satoshi , Abundances of 23 field RR Lyrae stars, 2013RAA....13.1307L
  47. Shi, Weibin; Chen, Yuqin; Carrell, Kenneth; Zhao, Gang, The kinematics and chemistry of the Sagittarius streams, 2013IAUS..289..422S
  48. Carrell, Kenneth; Chen, Yuqin; Zhao, Gang, Metallicity Gradients of Thick Disk Dwarf Stars, 2012AJ....144..185C
  49. Carrell, Kenneth; Wilhelm, Ronald; Chen, YuQin, Red Clump Stars in the Sagittarius Tidal Streams, 2012AJ....144...18C
  50. Liu, F.; Chen, Y. Q.; Zhao, G.; Han, I.; Lee, B. C.; Kim, K. M.; Zhao, Z. S., Chemical composition of giants from two moving groups, 2012MNRAS.422.2969L
  51. Shi, W. B.; Chen, Y. Q.; Carrell, K.; Zhao, G., The Kinematics and Chemistry of Red Horizontal Branch Stars in the Sagittarius Streams, 2012ApJ...751..130S
  52. Liu, S.; Nissen, P. E.; Schuster, W. J.; Zhao, G.; Chen, Y. Q.; Liang, Y. C., Abundances of neutron-capture elements in G 24-25. A halo-population CH subgiant, 2012A&A...541A..48L
  53. Li, T. D.; Bi, S. L.; Chen, Y. Q.; Liu, K.; Tian, Z. J.; Ge, Z. S., Lithium Abundance as a Predictor of Mass and Age in Solar-analog Stars, 2012ApJ...746..143L
  54. Zhao, Jing-Kun; Zhao, Gang; Chen, Yu-Qin; Luo, A. -Li , Metallicity calibration for solar type stars based on red spectra, 2011RAA....11..563Z
  55. Zhao, J. K.; Oswalt, T. D.; Rudkin, M.; Zhao, G.; Chen, Y. Q., The Chromospheric Activity, Age, Metallicity, and Space Motions of 36 Wide Binaries, 2011AJ....141..107Z
  56. Zhao, Z.S.,Chen, Y.Q., Zhao, J.K,; Zhao, G., Spectroscopic study of two solar twin candidates and the colors of the Sun, Science in China Series G:Physics,Mechanics & Astronomy, 53 (3),579,2010
  57. Zhao J.K, Zhao G., Chen Y.Q.,, A Catalog of Moving Group Candidates in the Solar Neighborhood, 2009ApJ,692,L113
  58. Liu, Y.-J.; Sato, B; Zhao, G.; Noguchi, K; Wang, H.; Kambe, E; Ando, H;Izumiura, H; Chen, Y.-Q.; Okada, N; and 9 coauthors, A Substellar Companion to the Intermediate-Mass Giant 11 Comae, 2008ApJ,672,553
  59. Huang, C.; Zhao, G.; Zhang, H. W.; Chen, Y. Q., Does Si play a role in the formation of extrasolar planet systems?, 2007JApA...28..139
  60. Zhao, J-K; Zhao, G; Chen, Y-Q, A Software Platform for High-Resolution Spectra Procession and Abundance Analysis, 2007PNAOC...4..153Z
  61. Zhao G; Chen Y-Q; Shi J-R; Liang Y-C; Hou J-L; Chen L; Zhang H-W; Li A-G, Stellar Abundance and Galactic Chemical Evolution through LAMOST Spectroscopic Survey, 2006ChJAA...6..265Z
  62. Takeda, Y; Honda, S; Aoki, W; Takada-Hidai, Ma; Zhao, G; Chen, Y-Q; Shi, J-R, On the Spectroscopic Determination of Atmospheric Parameters and O/Fe Abundances of RR Lyrae Stars, 2006PASJ...58..389T
  63. Zhao, J-K; Zhao, G; Chen, Y-Q; Shi, J-R; Liu, Y-J; Zhang, J-Y, Automatic Normalization and Equivalent-Width Measurement of High-Resolution Stellar Spectra, 2006ChJAA...6..689Z
  64. Huang, C.; Zhao, G.; Zhang, H. W.; Chen, Y. Q., Chemical abundances of 22 extrasolar planet host stars, 2005MNRAS.363...71H
  65. Liu, Yujuan; Zhao, Gang; Chen, Yuqin, Search for Planets Companion to Late G-type Giant Stars, 2005AIPC..752...42L
  66. Nissen, P. E.; Chen, Y. Q.; Asplund, M.; Pettini, M., Sulphur and zinc abundances in halo and disk stars, 2005HiA....13..587N
  67. Huang, C.; Zhao, G.; Zhang, H.W.; Chen, Y.Q., An Analysis of the Condensation Temperature of Elements of Extrasolar Planetary Systems, 2005ChJAA...5..619H
  68. Bai, G. S.; Zhao, G.; Chen, Y. Q.; Shi, J. R., Chemical abundances of 10 metal-poor halo stars, 2004A&A...425..671B
  69. Zhao, G.; Chen, Y. Q.; Bai, G. S.; Huang, C., Atmospheric Abundances of Planet Host Stars, 2004IAUS..219..825Z
  70. Zhao, G.; Chen, Y. Q.; Qiu, H. M.; Tang, S. K.; Li, Z. W., Chemical Composition of Planet-harboring Stars, 2004IAUS..202..136Z
  71. Nissen, P. E.; Chen, Y. Q.; Asplund, M.; Pettini, M., Sulphur and zinc abundances in Galactic stars and damped Lyα systems, 2004A&A...415..993N
  72. Nissen, P. E.; Chen, Y. Q.; Asplund, M.; Pettini, M., Sulphur and Iron Abundances in Halo Stars, 2003IAUS..210P.E51N
  73. Takeda, Y; Zhao, G; Takada-Hidai, M; Chen, Y-Q; Saito, Y-J; Zhang, H-W, Non-LTE Analysis of the Sodium Abundance of Metal-Poor Stars in the Galactic Disk and Halo, 2003ChJAA...3..316T
  74. Liang, Y. C.; Zhao, G.; Chen, Y. Q.; Qiu, H. M.; Zhang, B., Chemical compositions of four barium stars, 2003A&A...397..257L
  75. Cui, CZ; Chen, YQ; Zhao, G; Zhao, YH, Abundance gradients in the galactic disk, Science in China Series G-Physics Astronomy, 46, 52, 2003
  76. Zhao, G.; Chen, Y. Q.; Qiu, H. M.; Li, Z. W., Chemical Abundances of 15 Extrasolar Planet Host Stars, 2002AJ....124.2224Z
  77. Zhao, G; Chen, Y-Q; Qin, H-M, Equivalent Widths of 15 Extrasolar-Planet Host Stars, 2002ChJAA...2..377Z
  78. Zhao, G.; Chen, Y. Q., Element abundances in metal-poor stars, 2002IAUS..187..242Z
  79. Takeda, Y.; Zhao, G.; Chen, Y.Q.; Qiu, H.M.; Takada-Hidai, M., On the Abundance of Potassium in Metal-Poor Stars, 2002PASJ...54..275T
  80. Qiu, H.M.; Zhao, G.; Takada-Hidai, M.; Chen, Y.Q.; Takeda, Y.; Noguchi, K.;Sadakane, K.; Aoki, W.;, α Element Abundances in Mildly Metal-Poor Stars, 2002PASJ...54..103Q
  81. Shi, J. R.; Zhao, G.; Chen, Y. Q., The C and N abundances in disk stars, 2002A&A...381..982S
  82. Qiu, H. M.; Zhao, G.; Chen, Y. Q. ; Li, Z. W., The Abundance Patterns of Sirius and Vega, 2001ApJ...548..953Q
  83. Nissen, P. E.; Chen, Y. Q.; Schuster, W. J.; Zhao, G., Sc and Mn abundances in disk and metal-rich halo stars, 2000A&A...353..722N
  84. Zhao, G.; Qiu, H. M.; Chen, Y. Q.; Li, Z. W., Equivalent Widths in the Spectrum of Sirius, 2000ApJS..126..461Z
  85. Zhao, G.; Chen, Y. Q., Abundance patterns in metal-poor stars, 1998ASPC..138..389Z
  86. Zhao, G; Li, Z; Chen, Y.Q.; Qiu, H; Li, Q, The high resolution spectrum of Sirius. II. Spectral atlas from 650 to 930 nm. , 1997ArBei..31....1Z
  87. Zhao, G; Li, Z; Chen, Y.Q.; Li, Q., The high resolution spectrum of Sirius. I. Spectral atlas from 380 to 650 nm., 1997ArBei..30...29Z