## Models

**Solar and Stellar Models and Tools**(external site)**ReadAMDL**– ReadAMDL is an Java utility which reads or writes AMDL and displays their content.**CESAM (Morel et al, 2003)**(external site) – English documentation

**Related articles:**

- Updated Opal Opacities (Iglesias and Rogers, 1996)
- OPAL Equation-of-State Tables for Astrophysical Applications (Rogers et al, 1996)
- Low-temperature Rosseland opacities (Alexander and Ferguson, 1994)
- Studies in Stellar Evolution. III. The Calculation of Model Envelopes (Henyey et al, 1965)
- Über die Wasserstoffkonvektionszone in Sternen verschiedener Effektivtemperaturen und Leuchtkräfte (Böhm-Vitense, 1958)

## Inversion Tools

**Splittings**– Splittings is an interactive Java utility which calculates rotational splittings for 2D rotation profiles.**InversionKit – I**nversionKit is an interactive Java program which performs linear inversions (rotational or structural) from frequency data.

**Related articles:**

- Estimating stellar mean density through seismic inversions (Reese et al., 2012)
- Faster formulations of the optimally localized averages method for helioseismic inversions (Pijpers and Thompson, 1992)

## Data Analysis

**Echelle**– Echelle is an interactive Java utility which plots echelle diagrams from a set of frequencies and their associated radial orders and harmonic degrees.**SurfCorrect**– SurfCorrect is an interactive Java utility which calculates frequency corrections due to surface effects, based on the formulas given in Kjeldsen et al. 2008.**Fourier analysis of gapped time series: Maximum likelihood estimation (Stahn and Gizon, 2008)**(external site)**Period04 (Lenz and Breger, 2005)**(external site)**VIRGO Data analysis (Appourchaux, 2003)**(external site)

**Related articles:**

- Correcting Stellar Oscillation Frequencies for Near-Surface Effects (Kjeldsen et al., 2008)
- Fourier analysis of gapped time series: Improved estimates of solar and stellar oscillation parameters (Stahn and Gizon, 2008)
- Period04 User Guide (Lenz and Breger, 2005)

## Pulsation codes and related material

**ReadFAMDE**– ReadFAMDE is an interactive Java utility which reads or writes AMDE or FAMDE files, and plots the eigenmodes contained within.

**Visibility functions –**The package can be used to calculate visibility and darkening functions for solar and stellar oscillations.

**Theoretical Radiative Transfer (Uitenbroek, 1998)**(external site)**Aarhus adiabatic pulsation package (Christensen-Dalsgaard, 1997)**(external site)

**Related articles:**

- Calculation of Spectral Darkening and Visibility Functions for Solar Oscillations (Nutto et al., 2008)
- The effect of photospheric granulation on the determination of the lithium abundance in solar-type stars (Uitenbroek, 1998)
- An accelerated lambda iteration method for multilevel radiative transfer. II – Overlapping transitions with full continuum (Rybicki and Hummer, 1992)
- An accelerated lambda iteration method for multilevel radiative transfer. I – Non-overlapping lines with background continuum (Rybicki and Hummer, 1991)
- On solar models and their periods of oscillation (Christensen-Dalsgaard, 1982)
- On adiabatic non-radial oscillations with moderate or large L (Christensen-Dalsgaard, 1980)