Measuring the Balmer Jump and Effective Gravity in FGK Stars
Astrophysics
2009-11-13 v1
Abstract
It is difficult to accurately measure the effective gravity (log g) in late-type stars using broadband (eg. UBV or SDSS) or intermediate-band (uvby) photometric systems, especially when the stars can cover a range of metallicities and reddenings. However, simple spectroscopic observational and data reduction techniques can yield accurate values for log g through comparison of the Balmer jumps of low-resolution spectra with recent grids of synthetic flux spectra.
Keywords
Cite
@article{arxiv.0706.2739,
title = {Measuring the Balmer Jump and Effective Gravity in FGK Stars},
author = {Michael S. Bessell},
journal= {arXiv preprint arXiv:0706.2739},
year = {2009}
}
Comments
20 pages, 13 figures and 4 tables