Document Type

Article

Publication Date

2-18-2022

Abstract

This is an erratum to the paper ‘ Chandra grating spectroscopy of embedded wind shock X-ray emission from O stars shows low plasma temperatures and significant wind absorption’ (2021, MNRAS, 503, 715). We present here a modest correction to the o v erall scaling of the differential emission measures (DEMs) of six O stars originally presented in Cohen et al. ( 2021 ). While working on a follow-up paper, we realized that we had incorrectly converted the bvapec spectral emission model’s normalization parameters (proportional to the emission measure per temperature bin size) to the emission measure per decade Kelvin shown in figs 4 and 7 of Cohen et al. ( 2021 ). The normalization, or emission measure, bins functionally have a uniform logarithmic width of log 10 T = 0.23 (each temperature is 1.7 times higher than the previous one) based on our choice of the six fixed temperatures of the spectral emission model. We had, ho we ver, incorrectly stated the bin width as log 10 T = 0.7, or 0.7 dex, in the first paragraph of section 3 and the penultimate paragraph of section 5 of the original paper (Cohen et al. 2021 ). Both instances should be changed to 0.23 dex.

Publication Title

Monthly Notices of the Royal Astronomical Society

ISSN

0035-8711

Publisher

Oxford University Press

Volume

511

Issue

3

First Page

3208

Last Page

3209

DOI

10.1093/mnras/stab3100

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