Design of a Full Stokes Polarimeter for Chromospheric Measurements with SOLIS/VSM

Autor:	J. W. Harvey, S. Gosain
Rok vydání:	2014
Předmět:	Physics Solar observatory Space and Planetary Science Polarimetry Solar rotation Astronomy Astronomy and Astrophysics Polarimeter Space weather Polarization (waves) Magnetic flux Magnetic field
Zdroj:	Proceedings of the International Astronomical Union. 10:186-190
ISSN:	1743-9221 1743-9213
DOI:	10.1017/s1743921315004743
Popis:	The synoptic observations of the magnetic field of the Sun have continued at the National Solar Observatory (NSO) since 1970s. The daily full-disk maps of the longitudinal magnetic field are regularly combined to form Carrington maps of the photospheric magnetic flux per solar rotation. These maps continue to be used by the international research community for a variety of studies related to solar magnetism as well as for space weather studies. The current NSO synoptic facility is the Synoptic Optical Long-term Investigation of the Sun (SOLIS), which regularly provides photospheric vector and chromospheric longitudinal full-disk magnetograms, among other data products. In the near future, an upgrade of SOLIS to produce chromospheric vector magnetograms is planned. We present the design of a new polarization modulator package for full Stokes polarimetry of the chromospheric Ca II 854.2 nm spectral line.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::bfc0b478ac8262552900923efac155f9 https://doi.org/10.1017/s1743921315004743 Zobrazit plný text záznamu Plný text ve formátu PDF