P
P. Seagraves
Researcher at National Center for Atmospheric Research
Publications - 4
Citations - 588
P. Seagraves is an academic researcher from National Center for Atmospheric Research. The author has contributed to research in topics: Sunspot & Solar observatory. The author has an hindex of 4, co-authored 4 publications receiving 578 citations.
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Journal ArticleDOI
The Possible Ascent of a Closed Magnetic System through the Photosphere
Bruce W. Lites,Boon Chye Low,V. Martínez Pillet,P. Seagraves,Andrew Skumanich,Z. Frank,R. A. Shine,Saku Tsuneta +7 more
Journal ArticleDOI
Stokes profile analysis and vector magnetic fields. VI: Fine scale structure of a sunspot
TL;DR: In this article, the vector magnetic field structure of a small, symmetric sunspot observed very close to disk center was explored using data from the High Altitude Observatory/National Solar Observatory Advanced Stokes Polarimeter (ASP).
Journal ArticleDOI
The Calibration of the Advanced Stokes Polarimeter
TL;DR: In this paper, a seven-parameter model of the Advanced Stokes Polarimeter is fitted to data obtained at a variety of mirror angles using observations of both the center of the solar disk and that point within a sunspot umbra at which the magnetic field is oriented as close to the line of sight as possible.
Proceedings ArticleDOI
Use of Mueller and non-Mueller matrices to describe polarization properties of telescope-based polarimeters
P. Seagraves,David F. Elmore +1 more
TL;DR: In this paper, the authors provide a compact and intuitive mathematical description of polarimeter response, which can aid in the refining of instrument designs and can be used in the design of instrument components.