Early Results from the Atmospheric Imaging Assembly (AIA) on the Solar Dynamics Observatory (SDO)

Details Early Results from the Atmospheric Imaging Assembly (AIA) on the Solar Dynamics Observatory (SDO) Early Results from the Atmospheric Imaging Assembly (AIA) on the Solar Dynamics Observatory (SDO)

Jan 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21715509t&link_type=abstract

American Astronomical Society, AAS Meeting #217, #155.09; Bulletin of the American Astronomical Society, Vol. 43, 2011

Physics

Optics

1

Scientific paper

SDO was launched on February 11, 2010, and first light was in late March. AIA provides multiple simultaneous high-resolution full-disk images of the corona and transition region up to 0.5 R above the solar limb with 1.5" spatial resolution (0.6" pixels) and 10 second temporal resolution. AIA consists of four telescopes that employ normal incidence multilayer coated optics to provide narrow band imaging of seven EUV band-passes centered on specific lines: Fe XVIII (94 A), Fe VIII, XX, XXIII (131 A), Fe IX (171 A), Fe XII, XXIV (193 A), Fe XIV (211 A), He II (304 A), and Fe XVI (335 A). One telescope observes C IV (1600 A) and the nearby continuum (1700 A), and a filter that observes in the visible enables coalignment with images from other telescopes. The temperature diagnostics of the EUV emissions covers the range from 0.06M °K to 20M °K. Since early April, these images have been taken nearly continuously, usually with a cadence of 12 seconds. Although solar activity has only been increasing slowly in this cycle, there have been a large number of filament ejections that interact with large regions over the solar surface. In addition, because of the rapid cadence of images, a number of new wave phenomena have been discovered associated both with small flares and the interaction of expanding magnetic structures with pre-existing structures. Movies illustrating some of these events will be shown.
AIA is supported by NASA (GSFC) contract NNG04EA00C at the Lockheed Martin Advanced Technology Center.

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