The Simplest Magnetograph: a novel approach for a compact instrument for measuring solar magnetic fields

被引：0

作者：

Pevtsov, Alexander A. ^{[1
]}

Monaghan, Austin ^{[1
,2
]}

Bertello, Luca ^{[1
]}

Pevtsov, Alexei A. ^{[1
]}

机构：

[1] Natl Solar Observ, 3665 Discovery Dr, Boulder, CO 80303 USA

[2] High Altitude Observ, Boulder, CO USA

来源：

GROUND-BASED AND AIRBORNE INSTRUMENTATION FOR ASTRONOMY X | 2024年 / 13096卷

关键词：

Broadband Polarization; Photospheric Imaging Magnetograph; New Instrument Concept; BAND CIRCULAR-POLARIZATION; SUNSPOTS;

D O I：

10.1117/12.3018527

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The Simplest Magnetograph is a novel alternative to the standard filter-based magnetograph for solar observations. The instrument exploits an asymmetry in Stokes profiles, which results in a broadband net polarization. The latter enables measurements of magnetic fields without resolving individual spectral lines. The instrument is designed to take broadband measurements of solar polarization. The chosen spectral band covers several photospheric lines with significant Lande g-factors. While the method can be used to measure a full vector magnetic field, in our initial application we concentrated on measurements of the longitudinal magnetic field. We discuss the feasibility, design, lab testing and validation, and solar observation measurements.

引用

页数：8

共 24 条

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