Some THEMIS tip-tilt images .

V. Bommier (1)

1 LESIA (UMR_8109) - Laboratoire d'études spatiales et d'instrumentation en astrophysique

In the MTR (`MulTiRaies', i.e. multiline spectropolarimetry) mode of THEMIS, a map is the result of a reconstruction from a scan of the solar image on the spectrograph entrance slit. The result of image motion appears as zigzags along non-vertical lines or structures in the map. As an image stabilization system, the new tip-tilt acts in reducing such zigzags. A map is presented obtained with the tip-tilt ON where nearly no zigzag is visible.

Mots clés: Instrumentation: miscellaneous

Domaines: Planète et Univers [physics]; Astrophysique [astro-ph]; Astrophysique stellaire et solaire [astro-ph.SR]

V. Bommier. Some THEMIS tip-tilt images .. Solar Magnetism and Dynamics & THEMIS Users Meeting, Nov 2006, Meudon, France. pp.23-26. ⟨hal-02391602⟩