2022
DOI: 10.1051/0004-6361/202243920
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Black hole and host galaxy growth in an isolated z ∼ 6 QSO observed with ALMA

Abstract: The outstanding mass growth of supermassive black holes (SMBHs) at the epoch of reionisation and its relation to the concurrent growth of their host galaxies poses challenges to theoretical models aimed at explaining how these systems formed on short timescales (<1 Gyr). To trace the average evolutionary paths of quasi-stellar objects (QSOs) and their host galaxies in the plane of BH mass to host mass (M dyn ), we compare the star formation rate (SFR), derived from the accurate estimate of the dust temperature… Show more

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Cited by 15 publications
(48 citation statements)
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References 106 publications
(167 reference statements)
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“…With the best-fitting UV/optical power law (red lines) and NIR to mid-infrared (MIR) CAT3D AGN torus model (brown lines; Hönig & Kishimoto 2017) in Shao et al (2019), and the source size of twice the effective radius of the dust continuum underlying CO (9-8) listed in Table 2, we derived an average dust temperature T dust of 53 +4 −4 K, a total dust mass M dust, app of 1.27 +0.62 −0.35 × 10 9 M and an overall emissivity index β of 1.90 +0.33 −0.27 . Our dust temperature is smaller than the value of 71 ± 4 K derived by Tripodi et al (2022), and our dust mass is ∼3 times higher. This is due to the differences in the AGN dust torus model used, which has a significant contribution in the rest frame wavelength range 100 µm in our case, whereas the impact of the AGN dust torus on the total dust continuum emission in Tripodi et al (2022) is limited 50 µm.…”
Section: Dust Diagnosticcontrasting
confidence: 79%
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“…With the best-fitting UV/optical power law (red lines) and NIR to mid-infrared (MIR) CAT3D AGN torus model (brown lines; Hönig & Kishimoto 2017) in Shao et al (2019), and the source size of twice the effective radius of the dust continuum underlying CO (9-8) listed in Table 2, we derived an average dust temperature T dust of 53 +4 −4 K, a total dust mass M dust, app of 1.27 +0.62 −0.35 × 10 9 M and an overall emissivity index β of 1.90 +0.33 −0.27 . Our dust temperature is smaller than the value of 71 ± 4 K derived by Tripodi et al (2022), and our dust mass is ∼3 times higher. This is due to the differences in the AGN dust torus model used, which has a significant contribution in the rest frame wavelength range 100 µm in our case, whereas the impact of the AGN dust torus on the total dust continuum emission in Tripodi et al (2022) is limited 50 µm.…”
Section: Dust Diagnosticcontrasting
confidence: 79%
“…16 × 0 . 13, which is similar to the one of Tripodi et al (2022), and a sensitivity of 0.15 mJy/beam per 17 km/s. The residual spectrum between the observed one and the best-fit double-Gaussian model is only noise-like, with an rms of 0.70 mJy.…”
Section: Outflow Traced By Oh +supporting
confidence: 72%
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