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Absence of EZH2 Gene Mutation in Chronic Myeloid Leukemia Patients in Blast Crisis
Chen, Hao-Yue,Yao, Hong,Wu, Ling-Yu,Liu, Can-Jun,Zhu, Jian-Qin,Liu, Chun-Hua,Wang, Wei,Dong, Sha-Sha,Ping, Na-Na,Chen, Su-Ning,Sun, Miao Asian Pacific Journal of Cancer Prevention 2013 Asian Pacific journal of cancer prevention Vol.14 No.5
ACCURACY OF LAMOST DR1 STELLAR PARAMETERS
GAO, HUA,ZHANG, HUA-WEI,XIANG, MAO-SHENG,HUANG, YANG,LIU, XIAO-WEI,LUO, A-LI,ZHANG, HAO-TONG,WU, YUE,ZHANG, YONG,LI, GUANG-WEI,DU, BING The Korean Astronomical Society 2015 天文學論叢 Vol.30 No.2
We adopt the PASTEL catalog combined with SIMBAD radial velocities as a testing standard to validate the stellar parameters (effective temperature $T_{eff}$, surface gravity log g, metallicity [Fe/H] and radial velocity $V_r$) from the first data release (DR1) of The Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) survey. After applying data reduction and temperature constraints to the sample obtained by cross-identification, we compare the stellar parameters from DR1 and PASTEL. The results show that the DR1 results are reliable under certain conditions. We derive a dispersion of 110 K, 0.19 dex, 0.11 dex and $4.91kms^{-1}$ in specified effective temperature ranges, for $T_{eff}$, log g, [Fe/H] and $V_r$ respectively. Systematic errors are negligible except for those of $V_r$. In addition, for stars with PASTEL [Fe/H] < -1:5, the metallicities in DR1 are systematically higher than those in PASTEL.