Stellar parameters, ages and distances in F,G,K stars from spectra analysis via Lick/SDSS indices

Details Stellar parameters, ages and distances in F,G,K stars from spectra analysis via Lick/SDSS indices Stellar parameters, ages and distances in F,G,K stars from spectra analysis via Lick/SDSS indices

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012cemw.confe..29f&link_type=abstract

Electronic Proceedings of "The Chemical Evolution of the Milky Way" January 23 - 27, 2012 Sexten Center for Astrophysics (SCfA).

Astronomy and Astrophysics

Astrophysics

Galaxy: Stellar Content, Stars: Abundances, Stars: Fundamental Parameters, Stars: Late-Type

Scientific paper

Examples of stellar parameter, age, and distance estimates from spectra analyses based on comparison of observed and synthetic spectral indices are presented. We use the new synthetic library of spectral feature indices, Lick/SDSS, computed from "ad hoc" synthetic spectra to fully exploit the content of the spectroscopic SDSS-DR7 stellar database. This system is well suited to derive homogeneous and self-consistent estimates of atmospheric parameter values, Teff , log g, [Fe/H], and to study alpha-element abundances in F, G, and K stars. Then, spectroscopic distances and ages can be obtained via a Bayesian approach by using theoretical isochrones. Eventually, hints on the membership of each stars to one of the different Galactic components can be derived by studing its galactic stellar orbit using the Galactic potential by Johnston et al. (1996). In this way we attempt to take into account possible stellar migration in order to evaluate the difference between current and birthplace positions.

Affiliated with

Also associated with

No associations

Rating

Stellar parameters, ages and distances in F,G,K stars from spectra analysis via Lick/SDSS indices does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Stellar parameters, ages and distances in F,G,K stars from spectra analysis via Lick/SDSS indices, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stellar parameters, ages and distances in F,G,K stars from spectra analysis via Lick/SDSS indices will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-909602