Physics – Optics
Scientific paper
Jan 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993spie.1742..423f&link_type=abstract
In: Multilayer and grazing incidence X-ray/EUV optics for astronomy and projection lithography; Proceedings of the Meeting, San
Physics
Optics
5
H Alpha Line, Linear Polarization, Lyman Alpha Radiation, Polarimetry, Solar Corona, Solar Magnetic Field, Coronagraphs, Electron Scattering, Line Of Sight, Mirrors, Optical Filters, Optical Reflection
Scientific paper
We discuss and analyze the possible sources of observational and instrumental uncertainty that can be encountered in measuring magnetic fields of the solar corona through polarimetric observations of the Hanle effect of the coronal Ly-alpha line. The Hanle effect is the modification of the linear polarization of a resonantly scattered line, due to the presence of a magnetic field. Simulated observations are used to examine how polarimetric measurements of this effect are affected by the line-of-sight integration, the electron collisions, and the Ly-alpha geocorona. We plan to implement the coronal magnetic field diagnostics via the Ly-alpha Hanle effect using an all-reflecting Ly-alpha coronagraph/polarimeter (Ly-alphaCoPo) which employs reflecting multilayer mirrors, polarizers, and filters. We discuss here the requirements for such an instrument, and analyze the sources of instrumental uncertainty for polarimetric observations of the coronal Ly-alpha Hanle effect. We conclude that the anticipated polarization signal from the corona and the expected performance of the Ly-alphaCoPo instrument are such that the Ly-alpha Hanle effect method for coronal field diagnostics is feasible.
Baker Phillip C.
Fineschi Silvano
Hoover Richard B.
Kim Jongmin
Walker Arthur B. C. Jr.
No associations
LandOfFree
Polarimetry of the HI Lyman-alpha for coronal magnetic field diagnostics does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Polarimetry of the HI Lyman-alpha for coronal magnetic field diagnostics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polarimetry of the HI Lyman-alpha for coronal magnetic field diagnostics will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1265533