Chromospheric Lyman Alpha SpectroPolarimeter: CLASP

Bibcode
2013SPD....44..142K
Kobayashi, Ken; Kano, R.; Trujillo-Bueno, J.; Winebarger, A. R.; Cirtain, J. W.; Bando, T.; De Pontieu, B.; Ishikawa, R.; Katsukawa, Y.; Kubo, M.; Narukage, N.; Sakao, T.; Tsuneta, S.; Auchère, F.; Asensio-Ramos, A.; Belluzzi, L.; Carlsson, M.; Casini, R.; Hara, H.; Ichimoto, K.; Manso-Sainz, R.; Shimizu, T.; Stepan, J.; Suematsu, Y.; Holloway, T.
Bibliographical reference

American Astronomical Society, SPD meeting #44, #100.142

Advertised on:
7
2013
Number of authors
25
IAC number of authors
4
Citations
0
Refereed citations
0
Description
The Chromospheric Lyman-Alpha Spectro-Polarimeter (CLASP) is a VUV spectropolarimeter optimized for measuring the linear polarization of the Lyman-alpha line (121.6 nm). The Lyman-alpha line is predicted to show linear polarization caused by atomic scattering in the chromosphere and modified by the magnetic field through the Hanle effect. The Hanle effect is sensitive to weaker magnetic fields than Zeeman effect, and is not canceled by opposing fields, making it sensitive to tangled or unresolved magnetic field structures. These factors make the Hanle effect a valuable tool for probing the magnetic field in the chromosphere above the quiet sun. To meet this goal, CLASP is designed to measure linear polarization with 0.1% polarization sensitivity at 0.01 nm spectral resolution and 10" spatial resolution. CLASP is scheduled to be launched in 2015.
Type
Non-refereed

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