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The Solar Orbiter mission
Open Access
Erratum
This article is an erratum for:
[https://doi.org/10.1051/0004-6361/201936663]

Issue
A&A
Volume 665, September 2022
The Solar Orbiter mission
Article Number C1
Number of page(s) 2
Section Astronomical instrumentation
DOI https://doi.org/10.1051/0004-6361/201936663e
Published online 09 September 2022

Erratum for: A&A, 642, A8 (2020), https://doi.org/10.1051/0004-6361/201936663

This erratum concerns the relative spectral response of the HRILya Telescope published in the Solar Orbiter EUI Instrument article (Rochus et al. 2020). It corrects Fig. 24 in Sect. 8.2 of the original manuscript. The published figure was included by mistake, as it showed the response of only part of the optical chain and did not provide the relative response of the entire HRILya Telescope. The difference between the two computed responses is significant because the spectral purity of the band-pass and long-wavelength suppression of the solar continuum was an explicit design driver of the instrument.

The corrected figure, which shows the achieved rejection of longer wavelengths (by many orders of magnitude), is provided in this corrigendum. Figure 1 shows the relative spectral response between 115 nm and 300 nm, predicted by the measurements of all flight components (mirrors, filters, and detector). We note that the peak of the response is shifted by 2.6 nm with respect to the Lyman-α rest wavelength as a result of the narrowband focal plane filter, which has its maximum transmittance at 119 nm.

References

  1. Rochus, P., Auchère, F., Berghmans, D., et al. 2020, A&A, 642, A8 [NASA ADS] [CrossRef] [EDP Sciences] [Google Scholar]

© P. Rochus et al. 2022

Licence Creative CommonsOpen Access article, published by EDP Sciences, under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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All Figures

thumbnail Fig. 1

Relative spectral response of HRILya as predicted by the measured efficiencies of all flight components (mirrors, filters, and the detector).
In the text

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