Spectroscopic Study of Candidates for Kepler Asteroseismic Targets - Solar-Like Stars

TL;DR

This study provides spectroscopic data for 33 Kepler asteroseismic candidate stars, including measurements of their physical properties and binary status, aiding in the selection and analysis of targets for stellar oscillation studies.

Contribution

The paper offers new spectroscopic measurements for 28 stars, including radial velocities and stellar parameters, and identifies potential binary systems among Kepler candidates.

Findings

Radial velocities measured for 28 stars for the first time.

Identification of two suspected spectroscopic binaries.

Comprehensive stellar parameters derived for all observed stars.

Abstract

We report spectroscopic observations of 23 candidates for Kepler asteroseismic targets and 10 other stars in the Kepler field, carried out at two observatories (see the footnote). For all these stars, we derive the radial velocities, effective temperature, surface gravity, metallicity, the projected rotational velocity, and estimate the MK type. HIP 97513 and HIP 92132 are classified as suspected new single-lined spectroscopic binaries. For 28 stars, the radial velocity is measured for the first time.