Determining distances using asteroseismic methods
arXiv:1210.7343 · doi:10.1002/asna.201211774
Abstract
Asteroseismology has been extremely successful in determining the properties of stars in different evolutionary stages with a remarkable level of precision. However, to fully exploit its potential, robust methods for estimating stellar parameters are required and independent verification of the results is needed. In this talk, I present a new technique developed to obtain stellar properties by coupling asteroseismic analysis with the InfraRed Flux Method. Using two global seismic observables and multi-band photometry, the technique determines masses, radii, effective temperatures, bolometric fluxes, and thus distances for field stars in a self-consistent manner. Applying our method to a sample of solar-like oscillators in the {\it Kepler} field that have accurate {\it Hipparcos} parallaxes, we find agreement in our distance determinations to better than 5%. Comparison with measurements of spectroscopic effective temperatures and interferometric radii also validate our results, and show that our technique can be applied to stars evolved beyond the main-sequence phase.
4 pages, to appear in the Proceedings of the 17th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun, eds. K. Strassmeier & M. Lopez-Morales (AN, Vol. 334)
References in corpus (20)
- Validation of the new Hipparcos reduction
- Kepler Input Catalog: Photometric Calibration and Stellar Classification
- New constraints on the chemical evolution of the solar neighbourhood and Galactic disc(s). Improved astrophysical parameters for the Geneva-Copenhagen Survey
- Chemical evolution with radial mixing
- An absolutely calibrated effective temperature scale from the InfraRed Flux Method
- Kepler Asteroseismology Program: Introduction and First Results
- A three-dimensional Galactic extinction model
- Testing Scaling Relations for Solar-Like Oscillations from the Main Sequence to Red Giants using Kepler Data
- Ensemble Asteroseismology of Solar-Type Stars with the NASA Kepler Mission
- Fundamental Properties of Stars using Asteroseismology from Kepler & CoRoT and Interferometry from the CHARA Array
- Accurate parameters of 93 solar-type Kepler targets
- Red Giant Branch stars: the theoretical framework
- Characteristics of solar-like oscillations in red giants observed in the CoRoT exoplanet field
- Verifying asteroseismically determined parameters of Kepler stars using hipparcos parallaxes: self-consistent stellar properties and distances
- Probing populations of red giants in the galactic disk with CoRoT
- Determination of stellar radii from asteroseismic Data
- Oscillating K giants with the WIRE satellite: determination of their asteroseismic masses
- Constructing a one-solar-mass evolutionary sequence using asteroseismic data from \textit{Kepler}
- Asteroseismology of red giants as a tool for studying stellar populations: first steps
- Table of Contents of: "Red Giants as Probes of the Structure and Evolution of the Milky Way"