Details

Autor(en) / Beteiligte

• 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.

Titel

BAT AGN Spectroscopic Survey. XVI. General Physical Characteristics of BAT Blazars

Ist Teil von

• The Astrophysical journal, 2019-08, Vol.881 (2), p.154

Ort / Verlag

Philadelphia: The American Astronomical Society

Erscheinungsjahr

2019

Link zum Volltext

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• 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.