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We estimate black hole masses and Edenton ratios for a sample of 81 young radio galaxies, which includes 42 compact steep-spectrum (CSS) and 39 gigahertz-peaked spectrum (GPS) sources. We find that the average black hole (BH) mass of these young radio galaxies is 〈log Mbh〉 ∼8.3, which is less than that of radio loud QSOs and low redshift radio galaxies (〈log Mbh〉 ∼9.0). The CSS/GPS sources have...
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