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PI: Vladimir Slemzin, LPI, Moscow Co-I: Sergey Kuzin, Alexander Urnov, Farid Goryaev - LPI

Proposal to the PROBA 2 Guest Investigator Program. June 1, 2010. Study of the solar inner corona and search for coronal streams from active regions using SWAP off-disk observations. PI: Vladimir Slemzin, LPI, Moscow Co-I: Sergey Kuzin, Alexander Urnov, Farid Goryaev - LPI

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PI: Vladimir Slemzin, LPI, Moscow Co-I: Sergey Kuzin, Alexander Urnov, Farid Goryaev - LPI

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  1. Proposal to the PROBA 2 Guest Investigator Program. June 1, 2010 Study of the solar inner corona and search for coronal streams from active regions using SWAP off-disk observations PI:Vladimir Slemzin, LPI, Moscow Co-I:Sergey Kuzin, Alexander Urnov, Farid Goryaev - LPI Louise Harra – MSSL/UCL

  2. R=1.1 Helmet-like structure Proposal to the PROBA 2 Guest Investigator Program. June 1, 2010 SPIRIT studies of the inner corona (Slemzin et al., AnGeo 2008)

  3. Overlay of the disk and corona images Stray light In the Hershel telescopes the level of straylight is lower than in the Ritchey-Chretien telescopes (large mirror- detector distance, no elements in between) PSF is measured during eclipses 304 A 175 A 5 2002-06-1101:06:40

  4. Radial distribution at the equatorial plane Ts =1.53 MK 1.62 MK 1.32 MK Active sun 16/06/02 Quiet sun 04/04/96 Hydrostatic approach: radial distribution of radiation in EUV emission lines excited by collisions (I ~ Ne 2) -density scale of height Ts– hydrostatic temperature 12

  5. Sources of the solar wind Quasi-stationary solar wind at 1 AU fast SW (600-800 km/s) slow SW (400-600 km/s) Quasi-stationarycoronal streams (from several days to several rotations) Streams from polar coronal holes, polar rays and plumes WL streamers Streams from ARs, low-latitude CHs Transient solar wind (200-700 km/s) Transient streams (several hours) CME Jets small-scale events

  6. Main task and goals of the proposal Main task: to study the global and local structure of the solar inner corona from the limb to ~ 2 Rsun by means of the SWAP off-disk EUV observations in coordination with Hinode/EIS. Goals: • Global survey of the inner corona at rising solar activity and comparison of its structure with measurements at solar maximum (SPIRIT) and deep minimum (TESIS). • Search of the solar wind streams from active regions. • Determination of physical properties of the coronal streams and other local magneto-plasma formations.

  7. Association of the solar wind streams with solar sources 1).Temporal correlation between the solar wind variations and the solar rotation 2). Outflows from solar sources detected by the Doppler shift of coronal lines 3). Tracing of the coronal rays from the solar source to the outer corona (streamer) 4). Ionic composition of the plasma in the solar source and at 1 AU FIP bias (enhanced FIP abundances) Fe/O ratio O+7/ O+6 ratio (freeze-in temperature)

  8. Proposal to the PROBA 2 Guest Investigator Program. June 1, 2010 SWAP data 1x10s 100x10s equatorial scan

  9. Proposal to the PROBA 2 Guest Investigator Program. June 1, 2010 1x10s N W S E N 100x10s

  10. Proposal to the PROBA 2 Guest Investigator Program. June 1, 2010 SWAP – LASCO C2

  11. Global view of the inner corona combined from 4 SWAP off-point images (±10’) LASCO C2 FOV LED

  12. Proposal to the PROBA 2 Guest Investigator Program. June 1, 2010 Detection of coronal outflows with Hinode/EIS Doppler velocity Intensity Outflows of up to 50 km/s are seen in the boundary of AR, Harra et al. (2008).

  13. Proposal to the PROBA 2 Guest Investigator Program. June 1, 2010 Hinode/EIS data • Two EUV bands: 170-210 Å and 250-290 Å • CCD camera; Two 2048 x 1024 high QE back illuminated CCDs • Spatial resolution: 1 arc sec pixels/2 arc sec resolution • Line spectroscopy: • ~ 25 km/s per pixel sampling • ± 3 km/s with ~ 200 counts in a line profile • Field of View: • Raster: 6 arc min × 8.5 arc min (max height: 17 arc min) • FOV centre moveable E – W by ± 15 arc min • Wide temperature coverage: log T = 4.9, 5.3, 5.4, 5.8, 6.0 - 7.3 K • 4 slit/slots – 1”, 2”, 40”, 266”

  14. Proposal to the PROBA 2 Guest Investigator Program. June 1, 2010 TESIS – EIS comparison 1 August 2009 8 August 2009 AR near small CH TESIS Fe IX-X 171 A

  15. Proposal to the PROBA 2 Guest Investigator Program. June 1, 2010 TESIS 1-8 August 2009

  16. Proposal to the PROBA 2 Guest Investigator Program. June 1, 2010 Hinode/XRT TESIS 01/08/2010 18:05 UT 01/08/2010 11:26 UT

  17. Proposal to the PROBA 2 Guest Investigator Program. June 1, 2010 TESIS FeIX-X 171 A EIS FeXII 195 A intensity

  18. Proposal to the PROBA 2 Guest Investigator Program. June 1, 2010 outflow TESIS FeIX-X 171 A EIS FeXII 195 A Doppler velocity

  19. Proposal to the PROBA 2 Guest Investigator Program. June 1, 2010

  20. Proposal to the PROBA 2 Guest Investigator Program. June 1, 2010

  21. Proposal to the PROBA 2 Guest Investigator Program. June 1, 2010 TESIS – LASCO C2

  22. Solar wind data - ACE AR CH CH

  23. Proposal to the PROBA 2 Guest Investigator Program. June 1, 2010 Working plan of the research 1). Study of the quiet corona by full global survey of the inner corona up to 2 Rsun in 4 off-limb positions. Comparison with the TESIS and SPIRIT data 2). Search of coronal streams originated from active regions (SWAP in coordination with Hinode/EIS): - Search of the coronal outflows in the active regions near the center of the disk and selection the target object (EIS). - Observation of the targeted AR during a week (SWAP in standard mode, 10s/1 min); - Search of the coronal rays from the targeted AR at the limb (SWAP in the W- off-disk mode, 100x10s series, during 2-3 days). The ray should be identified as a bright line having a counterpart in the WL streamer. 3). Diagnostics of plasma in the limb region of the coronal rays and nearby in the corona by the DEM method (using the EIS data in the off-limb mode):Te, Ne, FIP bias

  24. Timeline of observations 22/06 SWAP global view (4 pos*100 frames) - Rot.0 19/07 SWAP global view (4 pos*100 frames) - Rot.1 11/08 SWAP solar eclipse 15/08 SWAP global view (4 pos*100 frames) - Rot.2 12/09 SWAP global view (4 pos*100 frames) - Rot.3 T0 EIS start of monitoring ARs at the disk T1 EIS outflow detection -> warning to SWAP T1+6d SWAP two-days off-point monitoring (W-limb) position of rays –> warning to EIS EIS monitoring the ray and nearby regions at the limb

  25. Plan of visits and presentations 5-19/11 2010 visit to ROB processing of the data, preparation of LPI – 2, MSSL-1 the report on structure of the global 15 days inner corona to ESWW 2010 (Brugge, 15-19/11 2010)  20/03 – 2/04 2011 visit to ROB processing of the data, preparation of LPI – 1, MSSL-1 the report of preliminary results to EGU 15 days 2011 (Vienna, 3-8 April 2011).

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