431 citations · 1.8k across the 33 of their papers we have counts for
8 papers · 1 filter
Determining the local dark matter density with LAMOST data
Qiran Xia, Chao Liu, Shude Mao +7
Measurement of the local dark matter density plays an important role in both Galactic dynamics and dark matter direct detection experiments. However, the estimated values from prev…
The K giant stars from the LAMOST survey data II: the Hercules stream in radial migration
Chao Liu, Xiao-Yan Chen, Jun Yin +11
We estimate the age for the individual stars located at the lower part of the red giant branch from the LAMOST DR2 K giant sample. Taking into account the selection effects and the…
The stellar kinematics in the solar neighborhood from LAMOST data
Hai-Jun Tian, Chao Liu, Jeffrey L. Carlin +6
We use about 200,000 FGK type main-sequence stars from the LAMOST DR1 data to map the local stellar kinematics. With the velocity de-projection technique, we are able to derive the…
Member candidates of the star clusters from LAMOST DR2 data
Bo Zhang, Xiao-Yan Chen, Chao Liu +10
In this work, we provide 2189 photometric- and kinematic-selected member candidates of 24 star clusters from the LAMOST DR2 catalog. We perform two-step membership identification:…
19 low mass hyper-velocity star candidates from the first data release of LAMOST survey
Yin-bi Li, A-Li Luo, Gang Zhao +12
Hyper-velocity stars are believed to be ejected out from the Galactic center through dynamical interactions between (binary) stars and the central massive black hole(s). In this pa…
The first symbiotic stars from the LAMOST survey
Jiao Li, Joanna Mikołajewska, Xue-Fei Chen +8
Symbiotic stars are interacting binary systems with the longest orbital periods. They are typically formed by a white dwarf, a red giant and a nebula. These objects are natural ast…
Red Clump Stars from the LAMOST data I: identification and distance
Junchen Wan, Chao Liu, Licai Deng +5
We present a sample of about 120,000 red clump candidates selected from the LAMOST DR2 catalog based on the empirical distribution model in the effective temperature vs. surface gr…
Estimation of distances to stars with stellar parameters from LAMOST
Jeffrey L. Carlin, Chao Liu, Heidi Jo Newberg +15
We present a method to estimate distances to stars with spectroscopically derived stellar parameters. The technique is a Bayesian approach with likelihood estimated via comparison…