Asteroseismology of Solar-type stars with Kepler III. Ground-based Data

TL;DR

This paper discusses ground-based spectroscopic and photometric follow-up observations of solar-like stars observed by Kepler, aiming to determine their fundamental parameters and verify the Kepler Input Catalogue.

Contribution

It presents a large-scale coordinated ground-based observational program supporting Kepler asteroseismology with new stellar parameter data.

Findings

Determined fundamental stellar parameters for over a thousand targets.

Verified and improved the accuracy of the Kepler Input Catalogue.

Enhanced the asteroseismic models with ground-based data.

Abstract

We report on the ground-based follow-up program of spectroscopic and photometric observations of solar-like asteroseismic targets for the Kepler space mission. These stars constitute a large group of more than thousand objects which are the subject of an intensive study of the Kepler Asteroseismic Science Consortium Working Group 1 (KASC WG-1). The main goal of this coordinated research is the determination of the fundamental stellar atmospheric parameters, which are used for the computing of their asteroseismic models, as well as for the verification of the Kepler Input Catalogue (KIC).