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Table 2.

Candidate MBBHs eROSITA sources.

Object Redshift Flux Predicted flux Luminosity
(×10−14 ergs/cm2/s) (×10−14 ergs/cm2/s) (×1044 ergs/s)
J114857+160023 1.22 <6 8.09 <5.3
J133654+171040 1.23 15.9 5.62 14.4
J100641+253110 1.13 <6 7.43 <4.4
J115445+244646 0.8 <6 21.1 <1.9
J102625+295907 3.39 4.46 0.81 48.0
J113142+304139 2.34 <6 1.45 <27.0
J092911+203708 1.84 <6 2.91 <15.0
J043526–164346 0.01 <6 <0.00014
J081133+065558 1.27 <6 6.28 <5.9
J082926+180020 0.81 5.61 5.93 1.8
J083349+232809 1.15 8.31 7.0 6.4
J102255+172155 1.06 15.0 4.04 9.4
J104941+085548 1.18 <6 6.85 <4.9
J115141+142156 1.00 <6 6.11 <3.2
J121457+132024 1.49 <6 4.23 <8.7
J130040+172758 0.86 12.6 9.09 4.7
J131909+090814 0.88 5.7 6.01 2.2
J134855–032141 2.1 <6 2.43 <20.0

Notes. Candidate MBBHs that fall within the footprint of the eRASS1 DR1 main catalogue, their redshift, their detected or upper limit flux in the 0.2−2.3 keV band, their predicted flux supposing that they accrete at 20% of Eddington and their luminosity corresponding to the detected flux or upper limit. The missing predicted flux is due to the fact that there is no mass measurement for this source in the Rakshit et al. (2020) catalogue.

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