Seismology of ZZ Ceti stars

Details Seismology of ZZ Ceti stars Seismology of ZZ Ceti stars

Dec 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008coast.157..294c&link_type=abstract

Communications in Asteroseismology, Vol.157, p. 294-295

Physics

Scientific paper

We used the detected pulsation modes and adiabatic pulsation models to measure the H and He layer masses for 83 ZZ Ceti stars by seismology. The range of H layer is 10-9.5 ≥ MH /M∗ ≥ 10 -4 , with an average of MH /M∗ = 10-6.3 , thinner than the canon- ical MH /M∗ = 10-4 , indicating that the stars lose more mass during their prior evolution.

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