THEMIS time opportunities Arturo López Ariste

THEMIS at short 90 cm Ø Ritchey-Chrétien telescope f/17 at F1 focus Polarimetric analysis at F1 (no instrumental polarization at 2-3×10-5 level) 3 post-focal instruments: MTR: Multiline spectropolarimetry. High-res double spectrograph allowing up to 10 (6) spectral domains observed simultaneously from 4000 – 13000 Å MSDP: Spectro-imager. IPM: Tunable imaging filter (UBF + etalon). High-spectral resolution (90 mÅ)

4 cameras

Prominences I Q U V He D3 Hα Ca II

#4 #3 #1 #2 #5

#4 #3 #1 #2 #5

A. Sainz Dalda

A. Sainz Dalda

A. Sainz Dalda

200-250 days allocated per year Two different TACs: Main TAC (80% of total time) Spanish TAC (20%)

200-250 days allocated per year Two different TACs: Main TAC (80% of total time) 5% International access 76% French time 19% Italian time Spanish TAC (20%)

200-250 days allocated per year Two different TACs: Main TAC (80% of total time) 5% International access 76% French time 19% Italian time Spanish TAC (20%) 1.3 pressure factor

Easier ways to have access? Include a Co-I from one of the participating countries Find appropriate data in BASS2000 after a 1-year exclusive period.

Coordinated Campaigns About one a year in the last few years: 2004/2005: JOP 175 (5 ground telescopes, 2 space instruments) 2006: VTT-Themis coordinated campaign

Coordinated Campaigns About one a year in the last few years: 2004, 2005: JOP 175 (5 ground telescopes, 2 space instruments) 2006: VTT-Themis coordinated campaign

F1

F2