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Future solar missions(Based on the summary by R.A. Harrison)

S. Kamio2004.11.15

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St Andrews is a small town in countryside.It is known for…

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Aim of workshop- Latest theoretical ideas for coronal heating- Observational results (SOHO, Yohkoh, TRACE, and RHESSI)- Looking towards the future space missions

2004 September 6 - 9 University of St Andrews, UKhttp://www.soho15.org/

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Future solar missions• Demands for better spatial and temporal resolution

(in terms of coronal heating)- small scale magnetic structures - wave or oscillation

• “Golden age” continuesSolar-B (2006)STEREO (2006)Solar Dynamics Observatory (2008)Solar Orbiter (2013)

• We should understand their capabilities and limitations to make a suitable observation plan

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Solar-B• SOT (Solar Optical Telescope)

50cm aperture, diffraction limited (0.25” or 175km)Intensity and vector magnetic field measurement- Narrow band filter- Broad band filter- Spectrograph

• XRT (X-Ray Telescope)Full or partial Sun, 1”Temperature range 0.5-20 MK

• EIS (EUV Imaging Spectrometer)170-210Å and 250-290Å (mainly 1-10MK lines)Doppler velocity (2km/s at best)Temperature and Density Diagnostics

                                                               

Launch 2006

http://solar.nro.nao.ac.jp/solar-b/

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STEREO (Solar TErrestrial RElations Observatory)

• Observe 3D structure of the Earth-directed CME(A pair of spacecraft)

• Launch 2006• EUV Imager (1.6”/pixel)

Full Sun in 171Å, 195Å, 284Å, 304Å

• CoronagraphCOR1 1.1 - 3.0R

COR2 2 - 15R

• Heliospheric ImagerInterplanetary CME

http://stereo.gsfc.nasa.gov/

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SDO (Solar Dynamics Observatory)

• Observe fine magnetic structures• Launch 2008• HMI (Helioseismic and Magnetic Imager)

Full Sun Doppler velocity (1” resolution)Vector magnetic field measurement

• High resolution imager (0.6”/pixel)

7 EUV and 3 UV bandsFull Sun (FOV 41’ )

• EUV irradiance measurement

http://sdo.gsfc.nasa.gov/

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Solar Orbiter

• Getting close to the Sun (45R or 0.2AU)

• Launch 2013• Instruments (TBD)

soft X-ray, visible lightEUV imager/spectrometer

• High resolution0.5” = 70km (at 0.2AU)

• Polar region observationLatitude up to 33 degree

http://www.orbiter.rl.ac.uk/

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What’s next ?

• No (approved) mission after 2013Solar Probe (NASA) ?Solar-C (JAXA) ?

• We should clarify the desired features for the following mission

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Notice

• Solar-B special sessionASJ meeting in Meisei Univ., Tokyo (2005 Mar 28 - 30)Abstract deadline: 2004 Dec 6Observation plan based on your results

• SOT seminar @ Kwasan Library2004 December 7-8- SOT magnetograph- SOT operation- Data analysis(to be transmitted to Hida?)