Multi-Wavelength Observations of Yohkoh White-Light Flares
Abstract
The problem of accounting for the continuum emission that is observed in solar flares is still one which is largely unresolved. These white-light flares place severe constraints on the energy requirements and transport mechanisms operating in the flare, raising the question of whether partial or total in-situ heating is required to account for this deep atmospheric heating. Since it is widely believed that the energy release in solar flares occurs in the corona and that energy is then transported to the low chromosphere where the optical emission is produced, most attempts to explain the origin of white-light flares have centred on canonical mechanisms. However, it has become clear that the spatial and temporal correspondence between white-light and HXR is not one-to one. In order to further our understanding of these events we study the temporal and spatial relationships between emission in the visible, SXR and HXR regimes in all of the white-light flares observed by Yohkoh prior to the failure of the Soft X-ray Telescope (SXT) Aspect Camera in 1992; a total of approximately 30 events.
- Publication:
-
Multi-Wavelength Observations of Coronal Structure and Dynamics
- Pub Date:
- January 2002
- Bibcode:
- 2002mwoc.conf..289M