most citedQuasars as standard candles III. Validation of a new sample for cosmological studies

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astro-ph.GA2020★ 176 cited

Quasars as standard candles III. Validation of a new sample for cosmological studies

E. Lusso, G. Risaliti, E. Nardini +15

We present a new catalogue of ~2,400 optically selected quasars with spectroscopic redshifts and X-ray observations from either Chandra or XMM-Newton. The sample can be used to inv…