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Table 3

Flags indicating different properties as measured for HMXBs and candidates.

Ca Flagb Description

8 ps X-ray modulation indicates NS spin period
9 px long-term X-ray period suggests orbital period
10 po period in optical suggests orbital period
11 os orbital solution available
11 ox assuming X-ray period as orbital period
11 oo assuming optical period as orbital period
11 oxo X-ray and optical period are consistent
12 xv variability in X-rays larger than a factor 30
13 xs typical X-ray spectrum
(power law with photon index <1.3)
14 oi optical id with high confidence
15 em Balmer (Hα) emission measured from spectrum
15 nem no near-IR excess emission

Notes.

(a)

Column in catalogue table (see Table 2).

(b)

A colon behind the flag indicates an uncertain property.

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