Molecular Band Proxies, Model Atmospheres, and Line Depth Ratios: Comparing Three Methods of Measuring Starspot Parameters on Highly Active Stars

Details Molecular Band Proxies, Model Atmospheres, and Line Depth Ratios: Comparing Three Methods of Measuring Starspot Parameters on Highly Active Stars Molecular Band Proxies, Model Atmospheres, and Line Depth Ratios: Comparing Three Methods of Measuring Starspot Parameters on Highly Active Stars

Jan 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004iaus..219..957o&link_type=abstract

Stars as suns : activity, evolution and planets, Proceedings of the 219th symposium of the International Astronomical Union held

Astronomy and Astrophysics

Astronomy

Scientific paper

In recent years various techniques have been developed to measure the temperatures and areas of dark cool starspots on magnetically active stars. We present comparisons among results obtained by applying three such techniques to the same data sets. The three methods are (1) fitting TiO-band spectra using spectra of proxy stars (2) fitting TiO-band spectra using model atmospheres and (3) fitting spectral line depth ratios. We investigate differences among results obtained by using each of these methods to compute starspot parameters of several active spotted stars.

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