Space Solar Telescope (SST)Space Solar Telescope (SST)————申请发改委“十二五”项目申请发改委“十二五”项目Proposed by Proposed by

Chinese Academy of Sciences Chinese Academy of Sciences and and

China Aerospace Science and Technology Corporation China Aerospace Science and Technology Corporation

Space Solar Telescope (SST) in ChinaSpace Solar Telescope (SST) in China

MOT

EUT HWT

SST was proposed by Prof. G. Ai et al.SST was proposed by Prof. G. Ai et al.

The basic materials of SST for this The basic materials of SST for this talk are mainly provided by:talk are mainly provided by:

Profs. G. Ai, S. Yang, S. Jin, S. Wang, B. Ye, Q. Song, Y. Deng, Y. Yan et al.

from National Astronomical Observatories, CASNational Astronomical Observatories, CAS Profs. J. Chang, R. Wang et al. from Chinese Academy of Space Technology Profs. W. Gan et al. from Purple Mountain Observatory, CAS Prof. B. Chen et al. from Changchun Institute of Optics, Fine Mechanics and

Physics, CAS

Solar synchronous circular orbitOrbit height: 735 kmInclination: 98.3°Period: 99.3 minAttitude: accuracy ±6", stability ±3"/sWeight: < 2 tonDuration: 3 yearsLaunch: LM-4B

Space Solar Telescope (SST) in ChinaSpace Solar Telescope (SST) in China

Main payloads of SSTMain payloads of SSTPayloads Working wavelength Resolution

Main optical telescope （ MOT） 3900-6600Å Spatial resol. 0.1" －

0.15"Max. Temporal resol. 30s

Extreme Ultraviolet Telescope （ EUT） 129Å, 171Å, 195Å, 304Å Spatial resol. 0.8"

Max. Temporal resol. 1sH and White Light Telescope （ HWT） H6563Å & 5500Å W.B. Spatial resol. 1"

Max. Temporal resol. 1sWide Band Spectrometer（ WBS） 20-30Kev, 15-450Kev,

0.3-14MevMax. Temporal resol. 1s

Solar & Interplanetary Radio Spectrometer （ SIR）

2-50MHz Max. Temporal resol. 0.1s

Imaging and Spectroscopy are Complementary THROUGHOUT the Solar Atmosphere

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sont requis pour visionner cette image.

SOHO/SUMER TRACE

This is high resolution spectroscopy (HRTS 1978) that first This is high resolution spectroscopy (HRTS 1978) that first showed the need for showed the need for High Spatial Resolution (~ High Spatial Resolution (~ or ≤or ≤ 0.1") 0.1")

Fine Structure:strands sub- &supersonic(Brekke, 1999)

Filling Factor1%: 0.1"0.1%: 30 mas

UV & FUV

Basic achieved parts of key Basic achieved parts of key technology of SSTtechnology of SST

General (global) technology of SST Technology of SST framework and configuration Technology of precise thermal control of SST Technology of SST Attitude control 1 meter Main Optical Telescope Extreme Ultraviolet Telescope Technology of On Board Data Processing

by China Academy of Space Technology and Chinese Academy of Sciences

and supported by China National Space Administration

空间太阳望远镜总体技术研究；空间太阳望远镜结构与机构技术研究；空间太阳望远镜精密温度控制技术研究；空间太阳望远镜高精度姿态控制技术研究；空间太阳望远镜主光学望远镜关键技术研究；空间太阳望远镜极紫外成像望远镜关键技术研究；空间太阳望远镜星载科学数据处理系统关键技术研究。

Suggested new payloads in SSTSuggested new payloads in SST Hard X-ray telescope?

Coronagraph?

Extreme Ultraviolet + Soft X-ray Telescope （ EUSXT ） ?

Spectro-Polarimeter or Fabry Perot system?

?

Some suggestions for the Some suggestions for the payloads of SSTpayloads of SST

MOT: Main Optic Telescope (1 Meter) 0.1 , 2.8'×1.5' , 8 channels, key two lines Stokes parameters ~ 2×10 -4

EUSXT: Extreme Ultraviolet and Soft-X-ray Telescope 0.5 , 8.5'×8.5' , 4 channels (19.5, 160nm) WIC : White-light Inner-corona Coronagraph HXI : Hard X-ray Imager HWT: H and White Light Telescope 1 , 0.7°× 0.7°, Full disk SIR: Solar & Interplanetary Radio Spectrometer

2-50 MHz, 0.1s resolution 2008/7/30 eclipse meeting

Summarized by Fang Cheng

Next step of SST (2011-2015)Next step of SST (2011-2015)———— Further research of SST according to the Further research of SST according to the guidance of Chinese Space Project Plan etc.guidance of Chinese Space Project Plan etc.

Preparing to become the formal space project of Chinese Government in 2011

The payloads for measurements of solar magnetic field etc.

The testing ground-base observations of SSTAmeliorating the global system of SST

Thank you for your attention! Thank you for your attention!

Suggested spectral lines for measurements of Suggested spectral lines for measurements of magnetic field by magnetic field by 2-D Spectrograph2-D Spectrograph of of SSTSST

W.L. nm

393.3

422.6

486.1

517.3

525.0

532.4

587.5

589.0

630.2

656.2

RS (arc) 0.099

0.106

1.22 0.134

0.148

0.148

0.159

0.165

Rayleigh limit of 1M optical telescope

Absorption line

Transfer profiles of birefrigent filters

空间太阳望远镜研制团队组成空间太阳望远镜研制团队组成国家天文台中国空间技术研究院紫金山天文台南京大学长春光机所等—— 经过 20年的努力，形成了良好的合作研究群体，完成空间太阳望远镜关键技术研究