High-z radio quasars in RACS - I. Selection, identification, and multi-wavelength properties

Open Access

Table 2.

X-ray properties from the eRASS:1DE catalogue (Merloni et al. 2024) of the newly discovered sources in this work.

Name	z	Flux [0.2−2.3 keV]	Lum [2−10 keV]	Net counts	Distance	Det. likelihood
RACS J0127−44	4.96	4.2 $_{- 1.6}^{+ 2.0}$ $^{+2.0}_{-1.6}$	7.1 $_{- 2.9}^{+ 3.5}$ $^{+3.5}_{-2.9}$	6.7	10.2	8.9
RACS J1322−13	4.70	12.6 $_{- 2.8}^{+ 3.4}$ $^{+3.4}_{-2.8}$	18.7 $_{- 4.7}^{+ 6.7}$ $^{+6.7}_{-4.7}$	19.2	4.4	44.8
RACS J2020−62	5.72	6.7 $_{- 2.4}^{+ 3.2}$ $^{+3.2}_{-2.4}$	15.7 $_{- 5.6}^{+ 7.1}$ $^{+7.1}_{-5.6}$	7.4	17.7	10.0

Notes. Fluxes are given in units of 10⁻¹⁴ erg s⁻¹ cm⁻². Luminosities are given in units of 10⁴⁵ erg s⁻¹ and were computed assuming a photon index Γ_X = 2.0, while the uncertainties correspond to a variation of the photon index of σ_{Γ_X} = ±0.3. Net counts are in the 0.2−2.3 keV energy band. The optical-to-X-ray distance is in arcseconds. The detection likelihood is described in Merloni et al. (2024). As a reference, the catalogue is composed mainly by sources with a detection likelihood > 5.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.