VizieR Online Data Catalog: Jet efficiencies and black hole spins in quasars (Soares+, 2020)
Abstract
For our study, we need a sample of jetted quasars with estimated jet powers and BH masses. This sample was provided by Ghisellini et al. (2014Natur.515..376G, Cat. J/other/Nat/515.376) and Ghisellini & Tavecchio (2015MNRAS.448.1060G, Cat. J/MNRAS/448/1060), hereafter G14 and G15, respectively.
G14 and G15 published a sample of blazars that have been detected in gamma-rays by Fermi-LAT and spectroscopically observed in the optical band (Shaw et al. 2012ApJ...748...49S, Cat. J/ApJ/748/49; Shaw et al. 2013ApJ...764..135S, Cat. J/ApJ/764/135), including 229 FSRQs and 475 BL Lacs. The Ghisellini sample is based on the first and second Fermi-LAT catalogues, corresponding to only 2yr of gamma-ray observations. We have now more than 10yr of LAT observations, therefore we cross-matched the original sample of FSRQs from G14 and G15 with the most up-to-date catalogue of LAT sources - 4FGL; The Fermi-LAT collaboration (2020ApJS..247...33A, Cat. J/ApJS/247/33) - ending up with 191 FSRQs. We were able to identify 156 objects in the Fermi 4FGL catalogue, out of the 191 sources in G15. Still, the objects 1438+3710 and 1439+3712 in G15 were both associated with 4FGL J1438.9+3710 by our distance method. Similarly, the objects 1636+4715 and 1637+4717 were both associated with 4FGL J1637.7+4717. Given their significantly different redshifts, we searched the literature and the 4FGL and G15 aliases to determine which object should be correctly associated with both 4FGL sources, and we determined that both 1439+3712 and 1636+4715 should be excluded from our analysis. Hence, our final sample contains 154 objects. Table A1 lists the FSRQs names, coordinates along with the other relevant properties for this work such as their gamma-ray luminosities and BH masses. (1 data file).- Publication:
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VizieR Online Data Catalog
- Pub Date:
- June 2023
- Bibcode:
- 2023yCat..74950981S
- Keywords:
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- Active gal. nuclei;
- Black holes;
- Accretion;
- Gamma rays;
- Redshifts