2007/11/07 by A. Moya, R. Garrido · 2 citations
Physics and Astronomy · #Adiabatic process #Astronomy and Astrophysical Research #Boundary (topology) #Boundary value problem #Code (set theory) #Cosmology #Eigenfunction #Observable #Oscillation (cell signaling) #Pulsars and Gravitational Waves Research #Stellar, planetary, and galactic studies #astro-ph
paper · pdf · doi:10.1007/s10509-007-9694-2
published as Astrophys.SpaceSci.316:129-133,2008 · 4 pages, 5 figures
openalex publication_date 2007/11/07 · arxiv created 2007/11/16 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Granada oscillation code (GraCo) is a software constructed to compute adiabatic and non-adiabatic oscillation eigenfunctions and eigenvalues. The adiabatic version gives the standard numerical resolution, and also the Richardson extrapolation, different sets of eigenfunctions, different outer mechanical boundary conditions or different integration variables. The non-adiabatic version can include the atmosphere-pulsation interaction. The code has been used for intensive studies of δScuti, γDoradus, βCeph., SdO and, SdB stars. The non adiabatic observables ``phase-lag'' (the phase between the effective temperature variations and the radial displacement) and δTeff/ Teff (relative surface temperature variation) can help to the modal identification. These quantities together with the energy balance (``growth rate'') provide useful additional information to the adiabatic resolution (eigenfrequencies and eigenfunctions).