Porto Oscillation Code (posc)

The Porto Oscillation Code ( p osc) has been developed in 1995 and improved over the years, with the main goal of calculating linear adiabatic oscillations for models of solar-type stars. It has also been used to estimate the frequencies and eigenfunctions of stars from the pre-main sequence up to t...

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Bibliographic Details
Published in:Astrophysics and space science 2008-08, Vol.316 (1-4), p.121-127
Main Author: Monteiro, Mário J. P. F. G.
Format: Article
Language:English
Subjects:
Astrobiology
Astronomy
Astrophysics
Astrophysics and Astroparticles
Boundary conditions
Cosmology
Observations and Techniques
Original Article
Physics
Physics and Astronomy
Space Exploration and Astronautics
Space Sciences (including Extraterrestrial Physics
Stars & galaxies
Studies
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Summary:The Porto Oscillation Code ( p osc) has been developed in 1995 and improved over the years, with the main goal of calculating linear adiabatic oscillations for models of solar-type stars. It has also been used to estimate the frequencies and eigenfunctions of stars from the pre-main sequence up to the sub-giant phase, having a mass between 0.8 and 4 solar masses. The code solves the linearised perturbation equations of adiabatic pulsations for an equilibrium model using a second order numerical integration method. The possibility of using Richardson extrapolation is implemented. Several options for the surface boundary condition can be used. In this work we briefly review the key ingredients of the calculations, namely the equations, the numerical scheme and the output.
ISSN:0004-640X
1572-946X
DOI:10.1007/s10509-008-9802-y