Comparing Time-Distance Results within a Coronal Hole to the Quiet Sun
Abstract
Time-distance helioseismology studies perturbations in solar wave modes. We use these techniques with SDO/HMI time-distance velocity-tracked dopplergram data to investigate differences between f -mode wave propagation within a coronal hole feature and without. We use symmetry arguments to enhance the signal-to-noise ratio of the cross-correlation results. We then look for phase and amplitude discrepancies between the coronal hole and quiet sun by comparing statistically significant differences between the regions.
- Publication:
-
SDO 2016: Unraveling the Sun's Complexity
- Pub Date:
- October 2016
- Bibcode:
- 2016usc..confE...1H
- Keywords:
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- SDO;
- SDO 2016;
- Solar Dynamic Observatory;
- SDO-2016;
- SDO Workshop;
- SDO 2016: Unraveling the Sun's Complexity