Identification

Title

CHROMIS Modulator Engineering Analysis, Design, Assembly, and Testing

Abstract

The CHROMIS Fabry-Perot tunable filter at the 1-m Swedish Solar Telescope (Goran B. Scharmer et al. 2003) has great potential to study the chromosphere using spectro-polarimetric techniques with the Ca II H & K lines. It combines high spatial resolution with high throughput, adequate spectral resolution, and fast spectral tuning capability. However, it is currently not outfited with a polarimetric modulator. The High Altitude Observatory (HAO) is to design and build such a modulator for the SST/CHROMIS instrument. A polarimeter for CHROMIS will give a unique possibility for investigating magnetic fields in the uppermost part of the chromosphere above active regions, which corresponds to the location of the origin of space weather. HAO believes that through this collaboration between HAO and Stockholm University, we can extend the capabilities of the solar community in understanding fundamentally important physical processes in the solar atmosphere, and aid the understanding of the origin of Solar variability on Earth's atmosphere. This development will help maintain ties between the European and US solar communities. This paper describes the engineering effort to design, analyze, fabricate, and test the modulator system.

Resource type

document

Resource locator

Unique resource identifier

code

https://n2t.org/ark:/85065/d7377dwr

codeSpace

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

geoscientificInformation

Keywords

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keyword value

Text

originating controlled vocabulary

title

Resource Type

reference date

date type

publication

effective date

2016-01-01T00:00:00Z

Geographic location

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East bounding longitude

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Temporal reference

Temporal extent

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End position

Dataset reference date

date type

publication

effective date

2024-05-01T00:00:00Z

Frequency of update

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Conformity

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Use constraints

Copyright Author(s). Distributed under license by the University Corporation for Atmospheric Research (UCAR). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

Limitations on public access

None

Responsible organisations

Responsible party

contact position

OpenSky Support

organisation name

UCAR/NCAR - Library

full postal address

PO Box 3000

Boulder

80307-3000

email address

opensky@ucar.edu

web address

http://opensky.ucar.edu/

name: homepage

responsible party role

pointOfContact

Metadata on metadata

Metadata point of contact