2011/01/18 by A. Mucciarelli, Alessio Mucciarelli · 30 citations
Mathematics · Physics and Astronomy · #Astrophysics #Computational physics #Computer science #Context (archaeology) #Emission spectrum #Equivalent width #Line (geometry) #Mathematics #Noise (video) #Physics #Quantum mechanics #Spectral line #Spurious relationship #Statistics #Stellar, planetary, and galactic studies #astro-ph.SR
paper · pdf · doi:10.1051/0004-6361/201015814
published in Astronomy and Astrophysics 528, A44 (EDP Sciences) · Accepted for publication in Astronomy and Astrophysics
arxiv created 2011/01/18 · openalex publication_date 2011/01/26 · arxiv updated 2015/05/27 · openalex created_date 2019/06/27 · openalex updated_date 2026/08/05
Context. The classical method to infer microturbulent velocity in stellar spectra requires that the abundances of the iron lines are not correlated with the observed equivalent widths. An alternative method, requiring the use of the expected line strength, is often used to bypass the risk of spurious slopes caused by the correlation between the errors in abundance and equivalent width.