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Proceedings Paper

A new spectro-polarimeter for solar prominence and filament magnetic field measurements
Author(s): David F. Elmore; Roberto Casini; Greg L. Card; Marc Davis; Alice Lecinski; Ron Lull; Peter G. Nelson; Steven Tomczyk
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Paper Abstract

We are constructing a spectro-­polarimeter using the 40-­cm coronagraph at the Evans Solar Facility of the National Solar Observatory in Sunspot, NM for the purpose of measuring the vector magnetic field in prominences and filaments. The Prominence Magnetometer (ProMag) is comprised of a polarization modulation package and a spectrograph. The modulation optics are located at the prime focus of the coronagraph along with calibration optics and a beamsplitter that creates two beams of orthogonal Stokes states. The spectrograph resides at the coude focus of the coronagraph. The polarizations of the two chromospheric lines of neutral helium, at 587.6 nm and 1083.0 nm, are to be observed simultaneously. We present details of the design of the spectro-­polarimeter.

Paper Details

Date Published: 9 July 2008
PDF: 10 pages
Proc. SPIE 7014, Ground-based and Airborne Instrumentation for Astronomy II, 701416 (9 July 2008); doi: 10.1117/12.789556
Show Author Affiliations
David F. Elmore, High Altitude Observatory, National Ctr. for Atmospheric Research (United States)
Roberto Casini, High Altitude Observatory, National Ctr. for Atmospheric Research (United States)
Greg L. Card, High Altitude Observatory, National Ctr. for Atmospheric Research (United States)
Marc Davis, High Altitude Observatory, National Ctr. for Atmospheric Research (United States)
Alice Lecinski, High Altitude Observatory, National Ctr. for Atmospheric Research (United States)
Ron Lull, High Altitude Observatory, National Ctr. for Atmospheric Research (United States)
Peter G. Nelson, High Altitude Observatory, National Ctr. for Atmospheric Research (United States)
Steven Tomczyk, High Altitude Observatory, National Ctr. for Atmospheric Research (United States)


Published in SPIE Proceedings Vol. 7014:
Ground-based and Airborne Instrumentation for Astronomy II
Ian S. McLean; Mark M. Casali, Editor(s)

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