LASCO observations of a streamer CME on 13-14 Aug 1997

Details LASCO observations of a streamer CME on 13-14 Aug 1997 LASCO observations of a streamer CME on 13-14 Aug 1997

Jun 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999aipc..471..629a&link_type=abstract

The solar wind nine conference. AIP Conference Proceedings, Volume 471, pp. 629-632 (1999).

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The LASCO instruments observed a low-velocity Streamer Blowout CME on 13-14 August 1997. Data animations show the development typical of a streamer CME. The event begins with a slow brightening of the preexisting helmet streamer. This particular CME develops into two teardrop-shaped loops that may be the signature of disconnected magnetic structures. Several features have been tracked through the C2 and C3 FOVs. All of the structures show a constant acceleration of 1.6-2.7 m/s2. LASCO polarization data have been analyzed for this event. The CME shows a peak polarization fraction of 0.91. This implies that the scattering electrons are close to the plane of the sky. The total mass of the CME is measured to be 5.8 E+15gr. The polarization data allow an estimate to be made of the electron density in this CME. The largest density is 1.7+/-0.4 E+5 e-/cm3.

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