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Table 4

Properties of the optical spectra used to calculate the new black hole masses.

Name Spectrum Date Exp. time (s) logM
J0347+0105 Asiago 2013-11-30 4800 7.33
J0629−0545 Asiago 2015-12-10 6000 7.80
J1114+3241 SDSS 2005-09-05 900 6.56
J1317+6010 SDSS 2002-05-16 900 6.59
J2242+2943 Asiago 2015-08-06 18000 6.51

Notes. Columns: (1) source name; (2) observatory; (3) observing date; (4) exposure time (seconds); (5) logarithm of the black hole mass.

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