J/MNRAS/495/981ivo://CDS.VizieR/J/MNRAS/495/981doi:10.26093/cds/vizier.74950981CDSSoares G.Nemmen R.2024-08-21T20:15:08Z2023-09-04T09:45:55ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.fractive-galactic-nucleiblack-holesaccretiongamma-ray-astronomyredshiftedThe mechanisms responsible for the production of relativistic jets from supermassive black holes (SMBHs) accreting at near-Eddington rates are not well understood. Simple theoretical expectations indicate that SMBHs in quasars accrete via thin discs which should produce at most very weak jets. This is contradicted by observations of powerful jets in flat-spectrum radio quasars (FSRQs). We use gamma-ray luminosities observed with the Fermi Large Area Telescope as a proxy of the jet power for a population of 154 FSRQs. Assuming typical quasar accretion rates and using black hole (BH) mass measurements from a variety of methods, we find a mean jet production efficiency of about 10 per cent for FSRQs, with values as high as 222 per cent. We find that this is consistent with FSRQs hosting moderately thin, magnetically arrested accretion discs around rapidly spinning BHs. Modelling our observations using general relativistic magnetohydrodynamic (GRMHD) simulations of jets from thin discs, we find an average lower limit of a_*_=0.59 for the SMBH spins of FSRQs, with tendency for the spins to decrease as the BH mass increases. Our results are consistent with the merger-driven evolution of SMBHs. 3 per cent of the sample cannot be explained by current GRMHD models of jet production from Kerr BHs due to the high efficiencies. Along the way, we find a correlation between BH masses and L_{gamma}_ which may be an useful mass estimator in blazar gamma-ray studies.2020MNRAS.495..981Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/495/981CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/other/Nat/515.376 : Power of relativistic jets in blazarsJ/MNRAS/448/1060 : Fermi/LAT broad emission line blazarsJ/ApJS/247/33 : The Fermi LAT fourth source catalog (4FGL)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/495/981https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/495/981http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/495/981https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/495/981https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/495/981http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/495/981GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/495/981/tablea1 (Data on the objects used in this work)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/495/981/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/495/981/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/495/981/tablea1?GETtext/xml+votable180.050000true1.1485644-47.60544560.0055555555555555566/172 438 808 911 1509 2234 2574 2661 2741 3024 3128 4352 4407 4572 4820 4880 4940 5139 5162 5201 5353 5390 5458 5546 5775 5795 5817 5870 6101 6167 6292 6777 7045 7346 7389 7426 7446 7709 8299 8466 8699 8830 9003 9075 9442 9460 9545 9629 9633 9853 9998 10249-10250 10352 10422 10426 10466 10561 10681 10971 10996 11081 11177 11777 11787 12173 12386 12466 12625 12687 12842 13352 13410 13485 13572 13729 14854 16661 16971 17186 17364 17665 17944 18092 18109 18624 19109 19593 19622 19851 19910 19918 21266 21358 21437 22305 22501 22558 22730 22950 23383 23416 23691 23897 25501 25649 26303 26340 27310 27433 28066 28083 28370 28479 28673 30446 31430 31451 31664 31844 31875 32808 32832 33549 33560 33774 33827 33964 34086 34637 35119 35370 36090 36665 36708 37512 38766 39077 41110 41335 41426 41460 43246 43451 44730 44840 45081 45713 45943 46835 46852 47512 48300https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/495/981?format=asciiGamma-raydefaultJ/MNRAS/495/981/tablea1Data on the objects used in this workSimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSource name (4FGL JHHMM.m+DDMM)meta.id;meta.maincharONameAlternative name (HHMM+DDMM) (1)meta.idcharzRedshiftsrc.redshiftfloatlogMLogarithm of the black hole mass (2)log(solMass)phys.massfloatlogLgamLogarithm of the Fermi-LAT gamma-ray flux L_{gamma}_log(1e-07W)phys.luminosity;em.gammafloatlogPjetLogarithm of the total jet power of blazars (3)log(1e-07W)phys.luminosityfloatetaEfficiency of jet production (4)stat.fit.paramfloatb_etaJet efficiency lower limitmeta.notefloatspin? Dimensionless black hole spinphys.angMomentumfloatnullablef_spinFlag on spin (5)meta.codecharb_spin? Spin lower limitmeta.notefloatnullablef_b_spinFlag on b_spin (6)meta.codechar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.main