EPJ Web Conf.
Volume 152, 2017Wide-Field Variability Surveys: A 21st Century Perspective – 22nd Los Alamos Stellar Pulsation – Conference Series Meeting
|Number of page(s)||5|
|Section||The spectroscopic perspective|
|Published online||08 September 2017|
The LAMOST spectroscopic survey of stars in the Kepler field of view: Activity indicators and stellar parameters
1 Uniwersytet Wrocawski, Instytut Astronomiczny, ul. Kopernika 11, 51-622 Wroc³aw, Poland
2 INAF–Osservatorio Astrofisico di Catania, via S. Sofia, 78, 95123 Catania, Italy
3 Royal Observatory of Belgium, Ringlaan 3, 1180 Brussels, Belgium
Published online: 8 September 2017
We summarize the results of the completed first round of the LAMOST-Kepler project, and describe the status of its on-going second round. As a result of the first round of this project, the atmospheric parameters (Teff, log g, and [Fe/H]), the spectral classification (spectral type and luminosity class), and the radial velocities (RV) have been measured for 51,385 stars. For 4031 stars, we were able to measure the projected rotational velocity, while the minimum detectable v sin i was 120 km s−1. For 8821 stars with more than one observation, we computed the χ-square probability that the detected RV variations have a random occurrence. Finally, we classified 442 stars as chromospherically active on the basis of the analysis of their Hα and Ca II-IRT fluxes. All our results have been obtained from the low-resolution (R ∼ 1800) spectroscopic observations acquired with the LAMOST instrument.
© The Authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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