A Hα metric for identifying dormant black holes in X-ray transients

Open Access

Fig. 2.

EW versus P_orb for the same sample of BHs and CVs as in Fig. 1. For reference we plot BH EW lines of constant inclination (i = 33°, 60° and 80°), computed with our toy model simulation (see Appendix C for details). The blue histogram indicates the mean EW for CVs in ten period bins.

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