Eis meeting talk
- 2. Solar magnetic field as seen from a balloon Santiago Vargas Domínguez UCL DEPARTMENT OF SPACE AND CLIMATE PHYSICS MULLARD SPACE SCIENCE LABORATORY Fluex Emergence Workshop @ MSSL March 2010 A sneak peek at data from Sunrise
- 3. Ballon-borne 1 -m solar telescope + What is Sunrise ? Electronics box Secondary mirror Instrumentation Gondola Damping system Solar panels Swedish Solar Telescope (SST) Observatory Roque de Los Muchachos (La Palma) @ 2400 m Diffraction limited: ~ 0.1” CWS: Correlator and Wavefront Sensor SUFI: Sunrise Filter Imager (high-res images visible & UV) IMaX: Imaging Magnetoraph eXperiment (2D maps of complete magnetic field vector, LOS velocity, white-light images Aim at: High-resolution Spectro-polarimetric observations of the solar atmosphere . Study magnetoconvection at fine scales
- 4. What is Sunrise ? SST FOV 16”x16” 0.034 “/pix 11 8 images Cadence: 1 0 s Sunrise combines strengths of SST (aperture) and Hinode (spectro-polarimetry with stable image quality ). Images in UV down to 0.05” Gband ( 430.5 nm) 1 000 km
- 5. Launched on 08/06/2009 from ESRANGE base Kiruna ( Sweden) Launching & flight 6 days Altitude: 40 km v ~ 50 km/h 1 40 m
- 6. Back on Earth Somerset island A week after .....
- 7. Fe 525.02 nm FOV 7”x 7” Small thumbnails 256x256 pixels and 0.22 arcsec/pix FOV 50”x 50” IMaX white-light Preliminary data exp time: 1 .5 s Post-facto image restoration (Phase Diversity)
- 8. Preliminary data Summer Schedule July 1 st week : Sunrise back home - Lindau (Germany) 2 nd week : Sunrise data meeting - Lindau (Germany) 3 rd week : IMaX data reduction meeting - somewhere (Spain) August September Data reduction (first steps) Spanish Solar Physics Meeting ( IMaX first results ? ) Data available for scientific community in early 20 1 0
- 9. Science with Sunrise Filter positions 388 nm (CN) 397 nm (CaH) 300 nm 313 nm (OH) 214 nm Pointing Measure 3D-distribution of B vector, v, T Polarization sensitive spectroscopy in photospheric/chromospheric line(s) Coordinated Observations Hinode, SOHO, TRACE SST, DOT, VTT, DST
- 10. Science with Sunrise Formation/destruction of intense magnetic elements Quiet Sun Convective collapse (Parker 1978). Convincing observation of the formation of intense flux tubes (~ KG) Photospheric footpoints of chromospheric and TR loops Dynamics of solar vortex flows (Bonet et al 2008) Coupling to the TR Photospheric structure @ spatial resolution ~35 km (2 1 4 nm) Magnetic landscape and coupling of the Polar Regions
- 11. Science with Sunrise Solar active regions Magnetoconvection at small scales Are umbral dots, light bridges and penumbral filaments intrusions of field-free plasma from beneath the sunspot ? Internal structure and evolution of individual penumbral filaments (< dark cores, Scharmer et al 2002 ) Those are still open questions generating an ongoing debate 1 000 km 1 000 km
- 12. Science with Sunrise Solar active regions Kaysukawa et al, 2007 Photospheric/Chromospheric drivers of penumbral microjets
- 13. Science with Sunrise Solar active regions Relationship between Chromospheric and Photospheric EF Photospheric/Chromospheric drivers of penumbral microjets Flux emergence - Coupling to the TR
- 14. Future plans 2 nd Sunrise flight planned for 20 11 The penguin in the logo will make sense then From McMurdo base Antarctica (9 - 12 days)
- 15. Thank you