| |
 |
| Paper: |
Constraining the Axion Mass through the Asteroseismology
of the ZZ Ceti Star G117-B15A |
| Volume: |
462, Progress in Solar/Stellar Physics with Helio- and Asteroseismology |
| Page: |
533 |
| Authors: |
Córsico, A. H.; Althaus, L. G.; Romero, A. D.; Miller Bertolami, M. M.; García-Berro, E.; Isern, J. |
| Abstract: |
We perform an asteroseismological study on the DAV star G117–B15A on
the basis of a modern set of fully evolutionary DA white dwarf models
that have consistent chemical profiles at the core and the envelope.
We found an asteroseismological model for G117–B15A that closely
reproduces its observed pulsation periods. Then, we use the most
recently measured value of the rate of period change for the dominant
mode of this pulsating star to impose a preliminary upper limit to the
mass of the axion. |
|
|
|
|
|
