Supporting Online Material

Destruction of Sun-Grazing Comet C/2011 N3 (SOHO) Within the Low Solar Corona

C. J. Schrijver, J. C. Brown, K. Battams, P. Saint-Hilaire, W. Liu, H. Hudson, W. D. Pesnell

Materials/Methods, Supporting Text, Tables, Figures, and/or References

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  • Materials and Methods
  • Fig. S1
  • Captions for movies S1 and S2
  • References

Images, Video, and Other Other Media

Movie S1
The first movie (S1) shows cutouts of images taken by the Atmospheric Imaging Assembly onboard the Solar Dynamics Observatory using its 171A° channel (designed to observe emission from Fe8+ and Fe9+ ions, emitting around 1MK). The images were taken at a cadence of 12 s; an unsharp-mask operation was used to enhance the contrast (courtesy of T.Berger, LMSAL).
Movie S2
A second movie (S2) shows cutouts (without spatial filtering) that move (in full pixel steps) with the position of the comet, located at the center of the circle. The comet's positions were measured as the approximate head of the EUV-bright tail, then fit by a parabola to derive a smooth trajectory, used to extrapolate beyond the time of clear visibility. The tail is very faintly visible from the moment the comet enters the AIA field of view; neither bright tail nor dark coma are seen with AIA past the last determined position at 2011/07/06 00:05:50UTC. The time stamp also shows the elapsed time in seconds since the t0 at 2011/07/05 23:40:01UTC. Asterisks in the top-right corner in the frames mark times of maximum brightness in Fig. 3.