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Erratum: "The Simons Observatory Large Aperture Telescope Receiver" (2021, ApJS, 256, 23)

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Published 2021 December 10 © 2021. The American Astronomical Society. All rights reserved.
, , Citation Ningfeng Zhu et al 2021 ApJS 257 71 DOI 10.3847/1538-4365/ac2e95

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This is a correction for 2021 ApJS 256 23

0067-0049/257/2/71

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1. Erratum

After the publication of the article, it was brought to our attention that the description of Equation (1) may cause potential confusion. Thus, we have decided to provide a newer reference and added a unit for ${q}_{\mathrm{tot}}$ in the description. The updated paragraph should read as the following:

The thermal conduction due to radiation on surfaces covered in MLI was computed using the Lockhead equation (Ross 2015):

Equation (1)

which accounts for both the conductive loading through the layers of the blanket (first term), and the radiative loading between layers of the MLI blanket (second term). In Equation (1), ${q}_{\mathrm{tot}}$ is the total thermal load on the MLI in units of $\mathrm{mW}\,{{\rm{m}}}^{-2}$, ${C}_{c}=8.95\times {10}^{-5}$ is a numerical constant defining the MLI conductive heat transfer, N is the MLI layer density in layers per centimeter, ${T}_{m}$ is the mean MLI temperature, taken to be ${T}_{m}=\tfrac{{T}_{h}-{T}_{c}}{2}$, n is the number of MLI layers, ${T}_{h}$ is the hot-side temperature in kelvin, ${T}_{c}$ is the cold-side temperature in kelvin, ${C}_{r}=5.39\times {10}^{-7}$ is a numerical constant defining the MLI radiative heat transfer, and ${\epsilon }_{0}=0.031$ is the MLI emissivity (Ross 2015).

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10.3847/1538-4365/ac2e95