Targets

Table 1 from SUBWAYS Paper I

(1) Target name; (2) Redshift; (3) Galactic absorption ; (4) 2–10 keV intrinsic luminosity measured in this work; (5) bolometric luminosity derived from the X-ray luminosity assuming the bolometric correction of Duras et al. (2020); (6) log of black hole mass from the measurements carried out in Bianchi et al. (2009) (a) , Xie et al. (2017) (b) , Perna et al. (2017) (c) , Kaspi et al. (2000b) (d) and this work(e) ; (7) Eddington ratio; (8) 2–10 keV flux.

Luminosity (upper panel) and rest-frame 4–10 keV counts (lower panel) plotted against redshift for the objects in the SUBWAYS sample and the comparison samples (Tombesi et al. 2010; Chartas et al. 2021), as labeled. In the lower panel, we also mark the sources of the 3XMM sample, used to select the SUBWAYS targets, with small empty circles. From SUBWAYS paper I: Ultra-fast outflows in quasars beyond the local Universe, Matzeu et al. (2023).

The final SUBWAYS sample consists of a total of 22 radio-quiet X-ray AGNs, mostly Type 1 and QSOs, where 17 sources have been observed with XMM-Newton between May 2019 and June 2020 (see Table 1) as part of the SUBWAYS large program (1.46 Ms, PI: M. Brusa) awarded in 2018. In addition, the sample includes the data of five sources that meet the L–z–counts selection criteria already available in the archive.