Autor:	Xuekun Chen, Silin Zhong, Z. Q. Qu, Yuan Feng, Gu XM(顾啸马), Xiaoyu Zhang
Rok vydání:	2001
Předmět:	Physics Accuracy and precision Spectrum analyzer business.industry Solar cycle 23 Astronomy and Astrophysics Polarimeter Polarization (waves) Spectral line law.invention Telescope Optics Space and Planetary Science law Astrophysics::Solar and Stellar Astrophysics business Smoothing
Zdroj:	Solar Physics. 201:241-251
ISSN:	0038-0938
DOI:	10.1023/a:1017978822648
Popis:	A solar Stokes spectrum telescope has been built and is routinely used to measure full Stokes spectra of solar surface features. Its optical and electronic systems are outlined while the polarization analyzer is described in detail. The observations carried out by this telescope are sampled and the performance parameters are given. The measured Stokes spectra during solar cycle 23 show that the measurement accuracy of Stokes polarization components can reach an r.m.s. noise level of less than 9.0×10−4 with short time integration for an active region and 5.0×10−4 with long time integration for a weak field region without smoothing.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6506c04795f3e4d820fb5607493ebc05 https://doi.org/10.1023/a:1017978822648 Zobrazit plný text záznamu Full text from SpringerLink