Determination of atmospheric parameters of B-, A-, F- and G-Type Stars : lectures from the School of Spectroscopic Data Analyses /
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| Imprint: | Cham : Springer, 2014. |
|---|---|
| Description: | 1 online resource (xvi, 310 pages) : illustrations (some color). |
| Language: | English |
| Series: | GeoPlanet, 2190-5193 GeoPlanet, |
| Subject: | |
| Format: | E-Resource Book |
| URL for this record: | http://pi.lib.uchicago.edu/1001/cat/bib/11086339 |
Table of Contents:
- Series Editors; Advisory Board; Preface; Contents; Contributors; 1 Spring School of Spectroscopic Data Analyses: Determination of Atmospheric Parameters of B, A, F and G-type Stars
- Introduction; 1 The Need for Accurate Atmospheric Parameters and Abundances from an Astrophysical Point of View; 2 Spectra as a Powerful Tool; 2.1 How to Choose the Ideal Spectrograph?; 3 KASC and the Characterisation of Asteroseismic Kepler Targets; 4 Motivation of the Spectroscopic School; 4.1 Available Spectra of Kepler Main Sequence Pulsators; 4.2 Outlook; References.
- 2 Stellar Atmospheres: Basic Processes and Equations1 Introduction; 2 Basic Definitions; 2.1 Specific Intensity; 2.2 Flux; 2.3 K-integral; 3 Absorption Coefficient and Optical Depth; 4 Emission Coefficient; 5 Source Function and Its Physical Meaning; 5.1 Two Simple Cases; 5.2 Pure Isotropic Scattering; 5.3 Pure Absorption; 6 The Transfer Equation; 6.1 Elementary Solutions; 6.2 No Absorption, No Emission; 6.3 No Absorption, Only Emission; 6.4 No Emission, Only Absorption; 6.5 General Case: Absorption and Emission; 6.6 Special Case: Linear Source Function; 7 The Flux Integral.
- 8 Computing a Model Atmosphere8.1 Basic Equations of Stellar Atmospheres; 8.2 A Pedagogical Example: The Grey Atmosphere; 9 Conclusions; References; 3 How to Build a Model of the Atmosphere and Spectrum; 1 Introduction; 2 Observational and Computational Pipelines; 3 Rotation; 4 Circumstellar and Interstellar Absorption; 5 Telluric Spectra; 6 Comparison to Observed Spectra; 7 Equation of State; 8 Convection and Microturbulent Velocity; References; 4 Model Atmosphere Codes: ATLAS12 and ATLAS9; 1 Introduction; 2 SYNTHE; 3 High Resolution Atlases; 4 Validating Spectrum Calculations; 5 ATLAS12.
- 6 DFSYNTHE and ODFs7 ODFs and ATLAS9; References; 5 Atomic Data: Where to Get Them, How to Use Them; 1 Introduction; 2 Spectral Line Formation; 3 Atomic Line Databases; 3.1 Robert Kurucz Database; 3.2 NIST Atomic Spectra Database; 3.3 VALD3
- Vienna Atomic Line Database, Third Release; 3.4 D.E.S.I.R.E. and D.R.E.A.M. Databases at Mons University; 3.5 Stark-b Database; 4 VAMDC
- Virtual Atomic and Molecular Data Centre; References; 6 Problems with Atomic and Molecular Data: Including All the Lines; 1 Introduction; 2 Problems; 3 Examples of New Calculations; 4 Molecules, TiO and H2O.
- 5 Spectrum Analysis Using Stellar Atlases as the Laboratory Source6 Conclusion; References; 7 Spectral Classification: The First Step in Quantitative Spectral Analysis; 1 Introduction; 2 The Role of Classification in Spectral Analysis; 3 How are Spectral Types Determined?; 3.1 Standard Stars; 3.2 An Example of How to Classify a Star; 4 Conclusions; References; 8 Effective Temperature Determination; 1 Effective Temperature; 2 The Paschen Continuum; 3 Temperatures from Balmer Line Profiles; 3.1 Examples of Balmer Line Fitting; 4 Spectral Line Depth Ratios; 5 Equivalent Width.