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Paliya, Vaidehi S.; Koss, M.; Trakhtenbrot, B.; Ricci, C.; Oh, K.; Ajello, M.; Stern, D.; Powell, M. C.; Urry, C. M.; Harrison, F.; Lamperti, I.; Mushotzky, R.; Marcotulli, L.; Mejía-Restrepo, J.; Hartmann, D.
Astrophysical journal/The Astrophysical journal, 08/2019, Letnik: 881, Številka: 2Journal Article
The recently released 105-month Swift-Burst Alert Telescope (BAT) all-sky hard X-ray survey catalog presents an opportunity to study astrophysical objects detected in the deepest look at the entire hard X-ray (14-195 keV) sky. Here we report the results of a multifrequency study of 146 blazars from this catalog, quadrupling the number compared to past studies, by utilizing recent data from the Fermi-Large Area Telescope (LAT), Swift-BAT, and archival measurements. In our γ-ray analysis of ∼10 yr of the LAT data, 101 are found as γ-ray emitters, whereas, 45 remains LAT undetected. We model the broadband spectral energy distributions with a synchrotron-inverse Compton radiative model. On average, BAT detected sources host massive black holes (Mbh ∼ 109 M ) and luminous accretion disks (Ld ∼ 1046 erg s−1). At high redshifts (z > 2), BAT blazars host more powerful jets with luminous accretion disks compared to those detected only with Fermi-LAT. We find good agreement in the black hole masses derived from the single-epoch optical spectroscopic measurements and standard accretion disk modeling approaches. Other physical properties of BAT blazars are similar to those known for Fermi-LAT detected objects.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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