Physics
Scientific paper
Dec 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988esasp.286..637s&link_type=abstract
In ESA, Seismology of the Sun and Sun-Like Stars p 637-641 (SEE N89-25819 19-92)
Physics
Dwarf Stars, Stellar Evolution, Stellar Oscillations, Stellar Physics, Stellar Spectrophotometry, Calibrating, Stellar Luminosity, Stellar Models, Stellar Structure
Scientific paper
Astroseismological methods were used to calibrate the white dwarf stage of stellar evolution. The internal structure of the white dwarfs can be investigated and the cooling rate determined. Comparing evolutionary models with the luminosity distribution of nearby white dwarfs makes a local determination of the age of the galactic disk population possible. The white dwarf pulsators have multiple and closely spaced periods which can only be determined from continuous photometry covering several nights of observing. A campaign involving observatories around the world was initiated, and results are presented.
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