Table 3 Derived properties of J0410−0139

From: A blazar in the epoch of reionization

Quantity

Value

Units

zMg ii

6.995 ± 0.001

 

z[C ii]

6.9964 ± 0.0005

 

m1,450

21.33 ± 0.08

AB mag

M1,450

−25.60 ± 0.08

AB mag

L2,500

(2.0 ± 0.1) × 1046

erg s−1

L3,000

(2.1 ± 0.1) × 1046

erg s−1

L4,400

(2.5 ± 0.2) × 1046

erg s−1

L5 GHz(2021)

(13.590 ± 0.003) × 1042

erg s−1

R2,500(2021)

165 ± 11

 

R4,400(2021)

74 ± 5

 

L5 GHz(2022)

(27.210 ± 0.006) × 1042

erg s−1

R2,500(2022)

331 ± 22

 

R4,400(2022)

148 ± 9

 

FWHMMg ii

\({2562_{-80}^{+90}}\)

km s−1

MBH

\({6.9_{-0.4}^{+0.5}}\times 10^{8}\)

M⊙

Lbol

(1.096 ± 0.005) × 1047

erg s−1

Lbol/LEdd

1.22 ± 0.08

 

L2–10 keV

\({3.2_{-0.7}^{+0.8}}\,\times{10^{45}}\)

erg s−1

ΓX

\({1.47_{-0.17}^{+0.19}}\)

 

\({\alpha }_{{\rm{OX}}}\)

−1.46 ± 0.07

 

\({\widetilde{\alpha }}_{{\rm{OX}}}\)

−1.25 ± 0.02

 
  1. L2,500, L3,000 and L4,400 were measured from the best-fitting power-law model to the combined spectrum. The uncertainties were dominated by the KsSOFI = 20.30 ± 0.08 magnitude used to absolute flux-calibrate the spectrum.
  2. For L5 GHz(2021), R2,500(2021), R4,400(2021), L5 GHz(2022), R2,500(2022) and R4,400(2022) the rest-frame 5 GHz luminosity and radio loudness were found using the radio measurements from 25 September 2021 and 6 August 2022 (Table 1 and Fig. 2a).
  3. For ɑOX, \({\alpha }_{{\rm{OX}}}\equiv \log ({L}_{{\nu }_\mathrm{X}}/{L}_{{\nu }_{{\rm{UV}}}})/\log ({\nu }_\mathrm{X}/{\nu }_{{\rm{UV}}})\), where Lν is the monochromatic luminosity. In this work, and in keeping with standard practice, we evaluated νUV at 2,500 Å and νX at 2 keV (αOX) and 10 keV (\({\widetilde{\alpha }}_{{\rm{OX}}}\)).
  4. zMg ii, redshift based on the Mg II emission line; z[C ii], redshift based on the [C II] emission line; m1,450, apparent magnitude at rest-frame 1,450 Å; M1,450, absolute magnitude at rest-frame 1,450 Å; L2,500, luminosity at rest-frame 2,500 Å; L3,000, luminosity at rest-frame 3,000 Å; L4,400, luminosity at rest-frame 4,400 Å; L5 GHz(2021), luminosity at rest-frame 5 GHz measured in 2021; R2,500(2021), radio loudness defined as the ratio between the flux densities at rest-frame 5 GHz and 2,500 Å, with the 5 GHz flux density measured in 2021; R4,400(2021), radio loudness defined as the ratio between the flux densities at rest-frame 5 GHz and 4,400 Å, with the 5 GHz flux density measured in 2021; L5 GHz(2022), luminosity at rest-frame 5 GHz measured in 2022; R2,500(2022), radio loudness defined as the ratio between the flux densities at rest-frame 5 GHz and 2,500 Å, with the 5 GHz flux density measured in 2022; R4,400(2022), radio loudness defined as the ratio between the flux densities at rest-frame 5 GHz and 4,400 Å, with the 5 GHz flux density measured in 2022; FHWMMg ii, full width at half maximum of the Mg II broad emission line; MBH, mass of the black hole; Lbol, bolometric luminosity; LEdd, Eddington luminosity; Lbol/LEdd, Eddington ratio; L2–10 keV, X-ray luminosity at 2–10 keV; ΓX, X-ray photon index.
Back to article page