Granulation in K-type dwarf stars

2008/10/29 by I. Ramirez, I. Ramírez, C. Allende Prieto +3 · 2 citations
Physics and Astronomy · #Astronomy #Astronomy and Astrophysical Research #Astrophysics #Astrophysics and Star Formation Studies #Effective temperature #Emission spectrum #Equivalent width #Geometry #Granulation #Line (geometry) #Optics #Physics #Radial velocity #Spectral line #Spectrograph #Stars #Stellar, planetary, and galactic studies #Telescope #Wavelength #White dwarf #astro-ph

paper · pdf · doi:10.1051/0004-6361:200810901

A&A, in press

arxiv created 2008/10/29 · openalex publication_date 2008/11/06 · arxiv updated 2009/12/01 · openalex created_date 2022/08/01 · openalex updated_date 2026/08/06

Abstract

Aims. We seek to detect and quantify the effects of surface convection (granulation) on the line spectra of K-dwarfs as a first step towards a rigorous testing of hydrodynamic models for their atmospheres.

Citations

• Velocities from Cross-Correlation: A Guide for Self-Improvement
• Fe i line shifts in the optical spectrum of the Sun
• Stellar Kinematic Groups. II. A Reexamination of the Membership, Activity, and Age of the Ursa Major Group
• Selection of ThAr lines for wavelength calibration of echelle spectra and implications for variations in the fine-structure constant
• Accurate M Dwarf Metallicities from Spectral Synthesis: A Critical Test of Model Atmospheres
• A catalogue of accurate wavelengths in the optical spectrum of theSun
• Metallicity measurements using atomic lines in M and K dwarf stars
• DETECTION OF EXTRASOLAR GIANT PLANETS
• ABUNDANCE RATIOS AND GALACTIC CHEMICAL EVOLUTION
• The NextGen Model Atmosphere Grid for \documentclassaastex \usepackageamsbsy \usepackageamsfonts \usepackageamssymb \usepackagebm \usepackagemathrsfs \usepackagepifont \usepackagestmaryrd \usepackagetextcomp \usepackageportland,xspace \usepackageamsmath,amsxtra \usepackage[OT2,OT1]fontenc \newcommand\cyr \renewcommand\rmdefaultwncyr \renewcommand\sfdefaultwncyss \renewcommand\encodingdefaultOT2 \normalfont \selectfont \DeclareTextFontCommand\textcyr\cyr \pagestyleempty \DeclareMathSizes10976 \begindocument \landscape 3000≤ T_eff ≤ 10,000 \enddocument K
• “Ultimate” information content in solar and stellar spectra
• Astrometric radial velocities

Cited by

• Long-term stellar activity variations and their effect on radial-velocity measurements
• THE MAGELLAN PFS PLANET SEARCH PROGRAM: RADIAL VELOCITY AND STELLAR ABUNDANCE ANALYSES OF THE 360 au, METAL-POOR BINARY “TWINS” HD 133131A & B*