![Page 1: Electro-optical Spectro-polarimeter for Ground- and Space-based Solar Coronagraphy S. Fineschi, INAF-Osservatorio Astronomico di Torino, Italy 1 May 9th,](https://reader035.vdocument.in/reader035/viewer/2022062404/55151f5e55034673228b5000/html5/thumbnails/1.jpg)
Electro-optical Spectro-polarimeter for Ground- and Space-based
Solar Coronagraphy S. Fineschi,
INAF-Osservatorio Astronomico di Torino, Italy
1May 9th, 2012 - MP1104 COST Action 1st WG meeting, Warsaw
![Page 2: Electro-optical Spectro-polarimeter for Ground- and Space-based Solar Coronagraphy S. Fineschi, INAF-Osservatorio Astronomico di Torino, Italy 1 May 9th,](https://reader035.vdocument.in/reader035/viewer/2022062404/55151f5e55034673228b5000/html5/thumbnails/2.jpg)
OUTLINE
→ Proba-3: ESA Formation-flying space coronagraph
→LC Tunable-filter Polarimeter (LCTP) for the “green line”
→LCTP Lab performances evaluation
→Eclipse 2010 observations with LCTP prototye
→Case for ground-based emission-line coronagraphy in Europe
2
![Page 3: Electro-optical Spectro-polarimeter for Ground- and Space-based Solar Coronagraphy S. Fineschi, INAF-Osservatorio Astronomico di Torino, Italy 1 May 9th,](https://reader035.vdocument.in/reader035/viewer/2022062404/55151f5e55034673228b5000/html5/thumbnails/3.jpg)
ESA PROBA-3 (ESA Startiger: 2009-10 Phase-A)
Formation-Flying Coronagraph
A coronagraph with the external occulter on one spacecraft and the optical instrument on the other
spacecraft at ~150 meters from the first one.Proba-3 – ESA: launch 2017. ASPIICS: 2009 selection; 2010 Phase-A (Startiger); 2012 Phase-B
3
![Page 4: Electro-optical Spectro-polarimeter for Ground- and Space-based Solar Coronagraphy S. Fineschi, INAF-Osservatorio Astronomico di Torino, Italy 1 May 9th,](https://reader035.vdocument.in/reader035/viewer/2022062404/55151f5e55034673228b5000/html5/thumbnails/4.jpg)
4
LC Lyot filter
ASPIICS
![Page 5: Electro-optical Spectro-polarimeter for Ground- and Space-based Solar Coronagraphy S. Fineschi, INAF-Osservatorio Astronomico di Torino, Italy 1 May 9th,](https://reader035.vdocument.in/reader035/viewer/2022062404/55151f5e55034673228b5000/html5/thumbnails/5.jpg)
5
Liquid-crystal Tunable Lyot Filter for Solar Coronagraphy
![Page 6: Electro-optical Spectro-polarimeter for Ground- and Space-based Solar Coronagraphy S. Fineschi, INAF-Osservatorio Astronomico di Torino, Italy 1 May 9th,](https://reader035.vdocument.in/reader035/viewer/2022062404/55151f5e55034673228b5000/html5/thumbnails/6.jpg)
LC Tunable-filter & Polarimeter Procurement
![Page 7: Electro-optical Spectro-polarimeter for Ground- and Space-based Solar Coronagraphy S. Fineschi, INAF-Osservatorio Astronomico di Torino, Italy 1 May 9th,](https://reader035.vdocument.in/reader035/viewer/2022062404/55151f5e55034673228b5000/html5/thumbnails/7.jpg)
LCTP Perfomances
Long Scan
0
5
10
15
20
25
30
35
526 527 528 529 530 531 532 533 534 535
Wavelength(nm)
Tra
ns
mis
sio
n(%
)
Prefilter
-0.1
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
527 528 529 530 531 532 533 534 535
Wavelength (nm)
Tra
nsm
issi
on
Fine Tuning
0
5
10
15
20
25
30
35
529 529.5 530 530.5 531 531.5
Wavelength (nm)
Tra
ns
mis
sio
n (
%)
530.3
530.32
530.34
530.36
Temperature Dependence
0
5
10
15
20
25
30
35
40
45
50
529 529.2 529.4 529.6 529.8 530 530.2 530.4 530.6 530.8 531
Wavelength (nm)
Tra
ns
mis
sio
n (
AU
)
21.4 Deg. C
25.9 Deg. C
7
![Page 8: Electro-optical Spectro-polarimeter for Ground- and Space-based Solar Coronagraphy S. Fineschi, INAF-Osservatorio Astronomico di Torino, Italy 1 May 9th,](https://reader035.vdocument.in/reader035/viewer/2022062404/55151f5e55034673228b5000/html5/thumbnails/8.jpg)
SET-UP @ TURIN ASTRONOMICAL OBS. LABMonochr. slit width= 25 µm; height = 6 mmMonochr. spectrum= CW 530.3 nm; FWHM = 0.1nmCollim. lens (L1) f = 140 mmCamera lens (L2) f = 1130 mmCCD pixel sixe = 25Spatial scale = 5 arcsec/pix (ASPIICS: 3 arcsec/pix)
8
![Page 9: Electro-optical Spectro-polarimeter for Ground- and Space-based Solar Coronagraphy S. Fineschi, INAF-Osservatorio Astronomico di Torino, Italy 1 May 9th,](https://reader035.vdocument.in/reader035/viewer/2022062404/55151f5e55034673228b5000/html5/thumbnails/9.jpg)
LCTP SPECTRAL TESTS
9
![Page 10: Electro-optical Spectro-polarimeter for Ground- and Space-based Solar Coronagraphy S. Fineschi, INAF-Osservatorio Astronomico di Torino, Italy 1 May 9th,](https://reader035.vdocument.in/reader035/viewer/2022062404/55151f5e55034673228b5000/html5/thumbnails/10.jpg)
10
0°
90°
45°
135°
![Page 11: Electro-optical Spectro-polarimeter for Ground- and Space-based Solar Coronagraphy S. Fineschi, INAF-Osservatorio Astronomico di Torino, Italy 1 May 9th,](https://reader035.vdocument.in/reader035/viewer/2022062404/55151f5e55034673228b5000/html5/thumbnails/11.jpg)
11
Proba-3 rad-hard requirement (Summary Mission Requirements: ESA P3-EST-TN-7002)
•1996 – 1.5 Mrad of < 32 MeV e- (Graham et al., SPIE 2811) •1998 – 12 krad of 20 MeV protons (Noto et al., Opt. Eng.)•2007 – 50 krad of -rad; Thermal-vac; Vibe tests
(Heredero et al., Appl. Opt. 46)•2009-2010 – 50 krad 100 MeV p+, 10 MeV e-
ESA-ITT “LC Space Validation for SolO”
LC SPACE VALIDATION (RAD-HARDNESS)
![Page 12: Electro-optical Spectro-polarimeter for Ground- and Space-based Solar Coronagraphy S. Fineschi, INAF-Osservatorio Astronomico di Torino, Italy 1 May 9th,](https://reader035.vdocument.in/reader035/viewer/2022062404/55151f5e55034673228b5000/html5/thumbnails/12.jpg)
The CorMag was operated during the total solar eclipse of July, 11th 2010 on Tatakoto Atoll (French Polynesia)
12
![Page 13: Electro-optical Spectro-polarimeter for Ground- and Space-based Solar Coronagraphy S. Fineschi, INAF-Osservatorio Astronomico di Torino, Italy 1 May 9th,](https://reader035.vdocument.in/reader035/viewer/2022062404/55151f5e55034673228b5000/html5/thumbnails/13.jpg)
LCTP BASED SPECTROPOLARIMETER–CORMAG
13
![Page 14: Electro-optical Spectro-polarimeter for Ground- and Space-based Solar Coronagraphy S. Fineschi, INAF-Osservatorio Astronomico di Torino, Italy 1 May 9th,](https://reader035.vdocument.in/reader035/viewer/2022062404/55151f5e55034673228b5000/html5/thumbnails/14.jpg)
CORONAL TEMPERATURE
CONTOUR LEVELS:
BLUE: 1.5106 KGREEN: 2106 K
14
K-corona image by M. Drukmuller
![Page 15: Electro-optical Spectro-polarimeter for Ground- and Space-based Solar Coronagraphy S. Fineschi, INAF-Osservatorio Astronomico di Torino, Italy 1 May 9th,](https://reader035.vdocument.in/reader035/viewer/2022062404/55151f5e55034673228b5000/html5/thumbnails/15.jpg)
15
HAO CoMP LC Lyot filter & Polarimeter
FeXIII 1074.7 nm
S. Tomczyk, et al.Science 317, 1192 (2007);
![Page 16: Electro-optical Spectro-polarimeter for Ground- and Space-based Solar Coronagraphy S. Fineschi, INAF-Osservatorio Astronomico di Torino, Italy 1 May 9th,](https://reader035.vdocument.in/reader035/viewer/2022062404/55151f5e55034673228b5000/html5/thumbnails/16.jpg)
16
COMP observations. HAO model . S. Gibson courtesy, 2012
![Page 17: Electro-optical Spectro-polarimeter for Ground- and Space-based Solar Coronagraphy S. Fineschi, INAF-Osservatorio Astronomico di Torino, Italy 1 May 9th,](https://reader035.vdocument.in/reader035/viewer/2022062404/55151f5e55034673228b5000/html5/thumbnails/17.jpg)
17
COMP-S INSTRUMENT @ LOMNICKY PEAK OBSERVATORY (SLOVAK R.)
![Page 18: Electro-optical Spectro-polarimeter for Ground- and Space-based Solar Coronagraphy S. Fineschi, INAF-Osservatorio Astronomico di Torino, Italy 1 May 9th,](https://reader035.vdocument.in/reader035/viewer/2022062404/55151f5e55034673228b5000/html5/thumbnails/18.jpg)
18
LCTP FILTER @ CLIMSO CORONAGRAPH PIC DU MIDI (FRANCE)?
![Page 19: Electro-optical Spectro-polarimeter for Ground- and Space-based Solar Coronagraphy S. Fineschi, INAF-Osservatorio Astronomico di Torino, Italy 1 May 9th,](https://reader035.vdocument.in/reader035/viewer/2022062404/55151f5e55034673228b5000/html5/thumbnails/19.jpg)
19
LCTP FILTER & ASPIICS TELESCOPE
@ DOMEC FRENCH-ITALIAN CONCORDIA BASE (ANTARTICA)?
Sky Brightness Monitor @ ConcordiaJ. Arnaud, M. Faroubert, 2009
ESCAPE proposal L. Dame, 2011
![Page 20: Electro-optical Spectro-polarimeter for Ground- and Space-based Solar Coronagraphy S. Fineschi, INAF-Osservatorio Astronomico di Torino, Italy 1 May 9th,](https://reader035.vdocument.in/reader035/viewer/2022062404/55151f5e55034673228b5000/html5/thumbnails/20.jpg)
Thanks !!!
20
![Page 21: Electro-optical Spectro-polarimeter for Ground- and Space-based Solar Coronagraphy S. Fineschi, INAF-Osservatorio Astronomico di Torino, Italy 1 May 9th,](https://reader035.vdocument.in/reader035/viewer/2022062404/55151f5e55034673228b5000/html5/thumbnails/21.jpg)
•The LCTP achieves all the spectroscopy performances expected from the F-P etalon
•The LCTP has additional science capabilities (e.g., polarimetry, simultaneous spectroscopy & high-res imaging)
•ESA completed a LC space validation program
•The LCTP operational advantages: no mechs, some science preserved even in “fail state”, OPS monitoring capability also during coronal images acquisition
2121 Aug., 2011 - Solar Physics and Space Weather Instrumentation IV – San Diego , CA
Liquid-crystal Tunable Lyot Filter for Solar Coronagraphy
![Page 22: Electro-optical Spectro-polarimeter for Ground- and Space-based Solar Coronagraphy S. Fineschi, INAF-Osservatorio Astronomico di Torino, Italy 1 May 9th,](https://reader035.vdocument.in/reader035/viewer/2022062404/55151f5e55034673228b5000/html5/thumbnails/22.jpg)
SET-UP @ OATO LAB
22
![Page 23: Electro-optical Spectro-polarimeter for Ground- and Space-based Solar Coronagraphy S. Fineschi, INAF-Osservatorio Astronomico di Torino, Italy 1 May 9th,](https://reader035.vdocument.in/reader035/viewer/2022062404/55151f5e55034673228b5000/html5/thumbnails/23.jpg)
0 -d0
0 +d
exit slit
23
Monochromator settingCenter wavel.: 530.3 nmFWHM: 0.1 nm
![Page 24: Electro-optical Spectro-polarimeter for Ground- and Space-based Solar Coronagraphy S. Fineschi, INAF-Osservatorio Astronomico di Torino, Italy 1 May 9th,](https://reader035.vdocument.in/reader035/viewer/2022062404/55151f5e55034673228b5000/html5/thumbnails/24.jpg)
LCTP VS. F-P ETALONSPECTROSCOPY
2421 Aug., 2011 - Solar Physics and Space Weather Instrumentation IV – San Diego , CA
![Page 25: Electro-optical Spectro-polarimeter for Ground- and Space-based Solar Coronagraphy S. Fineschi, INAF-Osservatorio Astronomico di Torino, Italy 1 May 9th,](https://reader035.vdocument.in/reader035/viewer/2022062404/55151f5e55034673228b5000/html5/thumbnails/25.jpg)
LC Tunable-filter
25
![Page 26: Electro-optical Spectro-polarimeter for Ground- and Space-based Solar Coronagraphy S. Fineschi, INAF-Osservatorio Astronomico di Torino, Italy 1 May 9th,](https://reader035.vdocument.in/reader035/viewer/2022062404/55151f5e55034673228b5000/html5/thumbnails/26.jpg)
LCTP AND F-P CHARACTERISTICS
2621 Aug., 2011 - Solar Physics and Space Weather Instrumentation IV – San Diego , CA
Liquid-crystal Tunable Lyot Filter for Solar Coronagraphy
![Page 27: Electro-optical Spectro-polarimeter for Ground- and Space-based Solar Coronagraphy S. Fineschi, INAF-Osservatorio Astronomico di Torino, Italy 1 May 9th,](https://reader035.vdocument.in/reader035/viewer/2022062404/55151f5e55034673228b5000/html5/thumbnails/27.jpg)
LCTP BASED SPECTROPOLARIMETER - CORMAG
2721 Aug., 2011 - Solar Physics and Space Weather Instrumentation IV – San Diego , CA
![Page 28: Electro-optical Spectro-polarimeter for Ground- and Space-based Solar Coronagraphy S. Fineschi, INAF-Osservatorio Astronomico di Torino, Italy 1 May 9th,](https://reader035.vdocument.in/reader035/viewer/2022062404/55151f5e55034673228b5000/html5/thumbnails/28.jpg)
LCTP BASED SPECTROPOLARIMETER–CORMAG
2821 Aug., 2011 - Solar Physics and Space Weather Instrumentation IV – San Diego , CA
![Page 29: Electro-optical Spectro-polarimeter for Ground- and Space-based Solar Coronagraphy S. Fineschi, INAF-Osservatorio Astronomico di Torino, Italy 1 May 9th,](https://reader035.vdocument.in/reader035/viewer/2022062404/55151f5e55034673228b5000/html5/thumbnails/29.jpg)
29
![Page 30: Electro-optical Spectro-polarimeter for Ground- and Space-based Solar Coronagraphy S. Fineschi, INAF-Osservatorio Astronomico di Torino, Italy 1 May 9th,](https://reader035.vdocument.in/reader035/viewer/2022062404/55151f5e55034673228b5000/html5/thumbnails/30.jpg)
30