Occupying the intermediate-mass regime of the accretion-jet parameter space, radio continuum emission from active galactic nuclei (AGNs) with black hole mass M_BH_=5) and 23 new candidates (3.5<=S/N<5). The majority of these new sources (119 of 125) have flux densities lower than the threshold of the official FIRST catalog. The new sources have rest-frame 20cm power (P_20cm_) from 1.98x10^20^ to 1.29x10^23^W/Hz. For low-z Seyfert galaxies, P20 cm correlates with MBH intrinsically and positively, yet only marginally with Eddington ratio L/LEdd. In terms of the log N-log S relation for the expanding Universe, the limiting flux density for the completeness of our LoTSS sources turns out to be 0.45mJy at 1.4GHz; i.e., complete to such a flux-density level that is 4 times deeper than the official FIRST catalog.

Cone search capability for table J/ApJS/271/64/table2 (Radio low-mass AGNs from the surveys of SKA Pathfinders)

Cone search capability for table J/ApJS/271/64/table3 (Expanded radio low-mass AGNs deeply mined from FIRST images)

Cone search capability for table J/ApJS/271/64/table4 (Physical properties of the radio low-mass AGNs)

Cone search capability for table J/ApJS/271/64/tablea1 (Other radio data for some sources in our sample)

Cone search capability for table J/ApJS/271/64/tablea2 (Other radio sources in the literature)

Cone search capability for table J/ApJS/271/64/tableb1 (Low-mass AGNs deeply mined from the FIRST images with 3<=S/N<3.5)

Cone search capability for table J/ApJS/271/64/tablec1 (Low-mass AGNs in the parent with 5{sigma} upper limits from LoTSS-DR2)