The prototype of the Small Synoptic Second Solar Spectrum Telescope (S5T)

F. Snik; R. Melich; C.U. Keller

The prototype of the Small Synoptic Second Solar Spectrum Telescope (S5T)

F. Snik, R. Melich, C.U. Keller

extern

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic

Abstract

We present the design and the prototype of the Small Synoptic Second Solar Spectrum Telescope (S5T), which can autonomously measure scattering polarization signals on a daily basis with large sensitivity and accuracy. Its data will be used to investigate the nature of weak, turbulent magnetic fields through the Hanle effect in many lines. Also the relation between those fields and the global solar dynamo can be revealed by spanning the observations over a significant fraction of a solar cycle. The compact instrument concept is enabled by a radial polarization converter that allows for “one-shot” polarimetry over the entire limb of the Sun. A polarimetric sensitivity of ∼10−5 is achieved by minimizing the instrumental polarization and by FLC modulation in combination with a fast line-scan camera in the fiber-fed spectrograph. The first prototype results successfully show the feasibility of the concept.

Original language	Undefined/Unknown
Title of host publication	Solar polarization 5 in honor of Jan Olof Stenflo : proceedings of a workshop held at Centro Stefano Franscini-Monte Verità, Ascona, Switzerland, 17-21 September 2007
Editors	Svetlana V. Berdyugina, K. N. Nagendra, Renzo Ramelli
Place of Publication	San Francisco
Publisher	Astronomical Society of the Pacific
Pages	383-388
Number of pages	6
Publication status	Published - 17 Sept 2007

Embargoed Document

405-0383[1]
Final published version, 455 KB
Embargo ends: 1/01/50

Cite this

Snik, F., Melich, R., & Keller, C. U. (2007). The prototype of the Small Synoptic Second Solar Spectrum Telescope (S5T). In S. V. Berdyugina, K. N. Nagendra, & R. Ramelli (Eds.), Solar polarization 5 in honor of Jan Olof Stenflo : proceedings of a workshop held at Centro Stefano Franscini-Monte Verità, Ascona, Switzerland, 17-21 September 2007 (pp. 383-388). Astronomical Society of the Pacific.

Snik, F. ; Melich, R. ; Keller, C.U. / The prototype of the Small Synoptic Second Solar Spectrum Telescope (S5T). Solar polarization 5 in honor of Jan Olof Stenflo : proceedings of a workshop held at Centro Stefano Franscini-Monte Verità, Ascona, Switzerland, 17-21 September 2007. editor / Svetlana V. Berdyugina ; K. N. Nagendra ; Renzo Ramelli. San Francisco : Astronomical Society of the Pacific, 2007. pp. 383-388

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title = "The prototype of the Small Synoptic Second Solar Spectrum Telescope (S5T)",

abstract = "We present the design and the prototype of the Small Synoptic Second Solar Spectrum Telescope (S5T), which can autonomously measure scattering polarization signals on a daily basis with large sensitivity and accuracy. Its data will be used to investigate the nature of weak, turbulent magnetic fields through the Hanle effect in many lines. Also the relation between those fields and the global solar dynamo can be revealed by spanning the observations over a significant fraction of a solar cycle. The compact instrument concept is enabled by a radial polarization converter that allows for “one-shot” polarimetry over the entire limb of the Sun. A polarimetric sensitivity of ∼10−5 is achieved by minimizing the instrumental polarization and by FLC modulation in combination with a fast line-scan camera in the fiber-fed spectrograph. The first prototype results successfully show the feasibility of the concept.",

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booktitle = "Solar polarization 5 in honor of Jan Olof Stenflo : proceedings of a workshop held at Centro Stefano Franscini-Monte Verit{\`a}, Ascona, Switzerland, 17-21 September 2007",

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Snik, F, Melich, R & Keller, CU 2007, The prototype of the Small Synoptic Second Solar Spectrum Telescope (S5T). in SV Berdyugina, KN Nagendra & R Ramelli (eds), Solar polarization 5 in honor of Jan Olof Stenflo : proceedings of a workshop held at Centro Stefano Franscini-Monte Verità, Ascona, Switzerland, 17-21 September 2007. Astronomical Society of the Pacific, San Francisco, pp. 383-388.

The prototype of the Small Synoptic Second Solar Spectrum Telescope (S5T). / Snik, F.; Melich, R.; Keller, C.U.
Solar polarization 5 in honor of Jan Olof Stenflo : proceedings of a workshop held at Centro Stefano Franscini-Monte Verità, Ascona, Switzerland, 17-21 September 2007. ed. / Svetlana V. Berdyugina; K. N. Nagendra; Renzo Ramelli. San Francisco: Astronomical Society of the Pacific, 2007. p. 383-388.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic

TY - GEN

T1 - The prototype of the Small Synoptic Second Solar Spectrum Telescope (S5T)

AU - Snik, F.

AU - Melich, R.

AU - Keller, C.U.

PY - 2007/9/17

Y1 - 2007/9/17

N2 - We present the design and the prototype of the Small Synoptic Second Solar Spectrum Telescope (S5T), which can autonomously measure scattering polarization signals on a daily basis with large sensitivity and accuracy. Its data will be used to investigate the nature of weak, turbulent magnetic fields through the Hanle effect in many lines. Also the relation between those fields and the global solar dynamo can be revealed by spanning the observations over a significant fraction of a solar cycle. The compact instrument concept is enabled by a radial polarization converter that allows for “one-shot” polarimetry over the entire limb of the Sun. A polarimetric sensitivity of ∼10−5 is achieved by minimizing the instrumental polarization and by FLC modulation in combination with a fast line-scan camera in the fiber-fed spectrograph. The first prototype results successfully show the feasibility of the concept.

AB - We present the design and the prototype of the Small Synoptic Second Solar Spectrum Telescope (S5T), which can autonomously measure scattering polarization signals on a daily basis with large sensitivity and accuracy. Its data will be used to investigate the nature of weak, turbulent magnetic fields through the Hanle effect in many lines. Also the relation between those fields and the global solar dynamo can be revealed by spanning the observations over a significant fraction of a solar cycle. The compact instrument concept is enabled by a radial polarization converter that allows for “one-shot” polarimetry over the entire limb of the Sun. A polarimetric sensitivity of ∼10−5 is achieved by minimizing the instrumental polarization and by FLC modulation in combination with a fast line-scan camera in the fiber-fed spectrograph. The first prototype results successfully show the feasibility of the concept.

M3 - Conference contribution

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EP - 388

BT - Solar polarization 5 in honor of Jan Olof Stenflo : proceedings of a workshop held at Centro Stefano Franscini-Monte Verità, Ascona, Switzerland, 17-21 September 2007

A2 - Berdyugina, Svetlana V.

A2 - Nagendra, K. N.

A2 - Ramelli, Renzo

PB - Astronomical Society of the Pacific

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Snik F, Melich R, Keller CU. The prototype of the Small Synoptic Second Solar Spectrum Telescope (S5T). In Berdyugina SV, Nagendra KN, Ramelli R, editors, Solar polarization 5 in honor of Jan Olof Stenflo : proceedings of a workshop held at Centro Stefano Franscini-Monte Verità, Ascona, Switzerland, 17-21 September 2007. San Francisco: Astronomical Society of the Pacific. 2007. p. 383-388