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Table A.1.

Westerlund 1 background fit parameters.

Parameter Value
BACKSCAL [arcmin2] 213.48
REGAREA [arcmin2] 672.07
NH [1022 cm−2] 2.1 ± 0.1
ηLHB [10−14 cm−5 arcmin−2] 1 . 0 − 0.6 + 0.4 · 10 − 6 $ 1.0_{-0.6}^{+0.4}\cdot10^{-6} $
N H CGM $ N_{\mathrm{H}}^{\mathrm{CGM}} $ [1022 cm−2] 0 . 4 − 0.4 + 0.3 $ 0.4_{-0.4}^{+0.3} $
ηCGM [1014 cm−5 arcmin−2] 9 − 8 + 30 · 10 − 5 $ 9_{-8}^{+30}\cdot10^{-5} $
N H cor $ N_{\mathrm{H}}^{\mathrm{cor}} $ [1022 cm−2] 1 . 2 − 0.3 + 0.3 $ 1.2_{-0.3}^{+0.3} $
ηcor [10−14 cm−5 arcmin−2] 1 . 4 − 0.4 + 0.6 · 10 − 5 $ 1.4_{-0.4}^{+0.6}\cdot10^{-5} $
N H LMXB $ N_{\mathrm{H}}^{\mathrm{LMXB}} $ [1022cm−2] 4 . 3 − 0.5 + 0.7 $ 4.3_{-0.5}^{+0.7} $
kB Tin [keV] 10 − 6 100 $ 10_{-6}^{100} $
ηLMXB [10−2 km2 kpc] 4 − 4 + 20 · 10 − 3 $ 4_{-4}^{+20}\cdot10^{-3} $

Notes. The BACKSCAL and REGAREA parameters were taken from the header of the background fits file. The NH parameter is the arithmetic mean of eleven column densities determined along the region via nH, while its uncertainty is the standard deviation of this mean. All other parameters are Xspec best-fit parameters with 90% confidence intervals. All normalizations except for ηLMXB are scaled with the background area in square arcminutes. Confidence intervals given without a plus or minus sign indicate that a parameter ran into a hard limit before it could sample its full 90% confidence region.

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