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| Paper: |
How Different Was the Last Solar Minimum? |
| Volume: |
462, Progress in Solar/Stellar Physics with Helio- and Asteroseismology |
| Page: |
261 |
| Authors: |
Basu, S.; Chaplin, W. J.; Elsworth, Y.; Broomhall, A.; Jarvis, E. |
| Abstract: |
The activity minimum between solar Cycles 23 and 24 has been
exceptional in its quietness. It had the lowest sustained 10.7 cm flux
since since observation of this proxy began in 1947. The internal
dynamics of the Sun have been found to be very different for the
minimum of Cycle 24 compared with that of Cycle 23. There have only
been preliminary attempts to determine whether there were differences
in the structure of the Sun during the Cycle 24 minimum compared with
the Cycle 23 minimum. Early studies have shown differences between
solar oscillation frequencies at the two minima. We expand the earlier
study and use a hybrid forward-modelling and fitting method to
determine whether the frequency differences imply differences in the
structure of the Sun between the two minima. |
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