Matches in SemOpenAlex for { <https://semopenalex.org/work/W4323351935> ?p ?o ?g. }
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- W4323351935 abstract "Using the modelling code X-CIGALE, we reproduced the SEDs of 1,359 SDSS QSOs within the redshift range 0 < z < 4, for which we have NIR/MIR fluxes with the highest quality and spectral data characterizing their SMBHs. Consistent with a rapid formation of the host galaxies, the star formation histories (SFHs) have small e-folding, at most 750 Myrs using an SFH function for Spiral or 1000 Myrs using one for Elliptical. Above z sim 1.6, the two solutions are degenerate, the SEDs being dominated by the AGN continuum and high star formation rates (SFRs), typical of starburst galaxies, while at lower redshifts the starburst nature of the host, independent from its morphology, is better reproduced by an Spiral SFH. In general, the SFR increases with the redshift, the mass of the bulge, the AGN luminosity and Eddington ratio, suggesting there is no evidence of AGN quenching of star formation. Comparing the specific BHAR with specific SFR, all the QSOs at any redshift trace a linear sequence below the Eddington luminosity, in parallel and above the one-to-one relation, implying that QSOs are in a special phase of evolution during which the growth in mass of their SMBH is more rapid than the growth in mass of their galaxy hosts. This particular phase is consistent with a scenario where the galaxy hosts of QSOs in the past grew in mass more rapidly than their SMBHs, suggesting that a high star formation efficiency during their formation was responsible in limiting their masses" @default.
- W4323351935 created "2023-03-08" @default.
- W4323351935 creator A5021021710 @default.
- W4323351935 creator A5037297971 @default.
- W4323351935 creator A5040222971 @default.
- W4323351935 date "2023-03-06" @default.
- W4323351935 modified "2023-09-25" @default.
- W4323351935 title "Probing the rapid formation of black holes and their Galaxy hosts in QSOs" @default.
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