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Record 1 of 16012
Combined Hinode, STEREO, and TRACE Observations of a Solar Filament Eruption: Evidence for Destabilization by Flux-Cancelation Tether Cutting
Author and Affiliation:
Sterling, Alphonse C.(NASA Marshall Space Flight Center, Huntsville, AL, United States)
Moore, R. L.(NASA Marshall Space Flight Center, Huntsville, AL, United States)
Abstract: We present observations from Hinode, STEREO, and TRACE of a solar filament eruption and flare that occurred on 2007 March 2. Data from the two new satellites, combined with the TRACE observations, give us fresh insights into the eruption onset process. HINODE/XRT shows soft X-ray (SXR) activity beginning approximately 30 minutes prior to ignition of bright flare loops. STEREO andTRACE images show that the filament underwent relatively slow motions coinciding with the pre-eruption SXR brightenings, and it underwent rapid eruptive motions beginning near the time of flare onset. Concurrent HINODE/SOT magnetograms showed substantial flux cancelation under the filament at the site of the pre-eruption SXR activity. From these observations we infer that progressive tether-cutting reconnection driven by photospheric convection caused the slow rise of the filament and led to its eruption. NASA supported this work through a NASA Heliosphysics GI grant.
Publication Date: May 27, 2007
Document ID:
20070031719
(Acquired Oct 18, 2007)
Subject Category: SOLAR PHYSICS
Document Type: Conference Paper
Meeting Information: American Astronomical Society 210th Meeting; 27-31 May 2007; Honolulu, HI; United States
Meeting Sponsor: American Astronomical Society; United States
Financial Sponsor: NASA Marshall Space Flight Center; Huntsville, AL, United States
Organization Source: NASA Marshall Space Flight Center; Huntsville, AL, United States
Description: 1p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: No Copyright
NASA Terms: TETHERING; TRANSITION REGION AND CORONAL EXPLORER; DESTABILIZATION; STEREO (OBSERVATORY); FILAMENTS; PHOTOSPHERE; SOLAR FLARES; MAGNETIC SIGNATURES
Availability Source: Other Sources
Availability Notes: Abstract Only
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