LAMOST observations in the Kepler field

TL;DR

This paper reports on the LAMOST telescope's extensive spectroscopic survey of the Kepler field, providing low-resolution spectra for over 68,000 objects and demonstrating the data's accuracy in stellar parameter determination.

Contribution

It presents a large-scale spectroscopic dataset for the Kepler field obtained with LAMOST, enabling improved stellar classification and parameter estimation.

Findings

Spectra for over 68,000 objects collected

Stellar parameters agree with high-resolution spectroscopy

Data distinguishes dwarfs from giants and measures rotational velocities

Abstract

The Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) at the Xinglong observatory in China is a new 4-m telescope equipped with 4,000 optical fibers. In 2010, we initiated the LAMOST-Kepler project. We requested to observe the full field-of-view of the nominal Kepler mission with the LAMOST to collect low-resolution spectra for as many objects from the KIC10 catalogue as possible. So far, 12 of the 14 requested LAMOST fields have been observed resulting in more than 68,000 low-resolution spectra. Our preliminary results show that the stellar parameters derived from the LAMOST spectra are in good agreement with those found in the literature based on high-resolution spectroscopy. The LAMOST data allows to distinguish dwarfs from giants and can provide the projected rotational velocity for very fast rotators.