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Title: Wavelength Determination for Solar Features Observed by the EUV Imaging Spectrometer on Hinode

Abstract

A wavelength calibration of solar lines observed by the high resolution EUV Imaging Spectrometer (EIS) on the Hinode satellite is reported. Spectral features of the quiet sun and of two mildly active areas were measured and calibrated. A listing of the stronger observed lines with identification of the leading contributor ions is presented. 41 lines are reported, with 90% identified. Wavelength precisions (2{sigma}) of {+-}0.0031 Angstroms for the EIS short band and {+-}0.0029 Angstroms for the EIS long band are obtained. These lines, typical of 1-2x10{sup 6} K plasmas, are recommended as standards for the establishment of EIS wavelength scales. The temperature of EIS varies by about 1.5 C around the orbit and also with spacecraft pointing. The correlation of these temperature changes with wavelength versus pixel number scale changes is reported.

Authors:
; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL) National Synchrotron Light Source
Sponsoring Org.:
Doe - Office Of Science
OSTI Identifier:
960147
Report Number(s):
BNL-83133-2009-JA
Journal ID: ISSN 0004-6264; PASJAC; TRN: US201016%%1291
DOE Contract Number:
DE-AC02-98CH10886
Resource Type:
Journal Article
Resource Relation:
Journal Name: Publications of the Astronomical Society of Japan; Journal Volume: 59
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; CALIBRATION; RESOLUTION; SATELLITES; SPECTROMETERS; SUN; WAVELENGTHS; national synchrotron light source

Citation Formats

Brown,C., Hara, H., Kamio, S., Feldman, U., Seely, J., Doschek, G., Mariska, J., Korendyke, C., Lang, J., and Dere, K. Wavelength Determination for Solar Features Observed by the EUV Imaging Spectrometer on Hinode. United States: N. p., 2007. Web. doi:10.1093/pasj/59.sp3.S865.
Brown,C., Hara, H., Kamio, S., Feldman, U., Seely, J., Doschek, G., Mariska, J., Korendyke, C., Lang, J., & Dere, K. Wavelength Determination for Solar Features Observed by the EUV Imaging Spectrometer on Hinode. United States. doi:10.1093/pasj/59.sp3.S865.
Brown,C., Hara, H., Kamio, S., Feldman, U., Seely, J., Doschek, G., Mariska, J., Korendyke, C., Lang, J., and Dere, K. Mon . "Wavelength Determination for Solar Features Observed by the EUV Imaging Spectrometer on Hinode". United States. doi:10.1093/pasj/59.sp3.S865.
@article{osti_960147,
title = {Wavelength Determination for Solar Features Observed by the EUV Imaging Spectrometer on Hinode},
author = {Brown,C. and Hara, H. and Kamio, S. and Feldman, U. and Seely, J. and Doschek, G. and Mariska, J. and Korendyke, C. and Lang, J. and Dere, K.},
abstractNote = {A wavelength calibration of solar lines observed by the high resolution EUV Imaging Spectrometer (EIS) on the Hinode satellite is reported. Spectral features of the quiet sun and of two mildly active areas were measured and calibrated. A listing of the stronger observed lines with identification of the leading contributor ions is presented. 41 lines are reported, with 90% identified. Wavelength precisions (2{sigma}) of {+-}0.0031 Angstroms for the EIS short band and {+-}0.0029 Angstroms for the EIS long band are obtained. These lines, typical of 1-2x10{sup 6} K plasmas, are recommended as standards for the establishment of EIS wavelength scales. The temperature of EIS varies by about 1.5 C around the orbit and also with spacecraft pointing. The correlation of these temperature changes with wavelength versus pixel number scale changes is reported.},
doi = {10.1093/pasj/59.sp3.S865},
journal = {Publications of the Astronomical Society of Japan},
number = ,
volume = 59,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2007},
month = {Mon Jan 01 00:00:00 EST 2007}
}