Jet opening angle and linear scale of launch region of blazars. Issue Volume 15:Issue S356(2019) (October 2019)

• Record Type: Journal Article
• Authors: Liu, Xiang; Jiang, Pengfei; Cui, Lang
• Editors: Pović, Mirjana; Marziani, Paola; Masegosa, Josefa; Netzer, Hagai; Negu, Seblu H.; Tessema, Solomon B.
• Is Part Of: Proceedings of the International Astronomical Union. Volume 15:Issue S356(2019)
• Page Start: 320
• Page End: 322
• Publication Date: 2019-10
• Subjects: Galaxies: jets, -- quasars: general, -- BL Lacertae objects: general; Astronomy -- Congresses; Astronomy -- Periodicals; 520
• DOI: 10.1017/S1743921320003221
• Languages: English
• ISSNs: 1743-9213

Abstract

Abstract: We explore the intrinsic jet opening angle (IJOA) of blazars, from the literature, we found that the blazar number density peaks around 0.5° of IJOA and declines quickly with increasing IJOA for flat spectrum radio quasars (FSRQs), while the number density has double peaks around 0.3° and 2.0° of IJOA for BL Lacs. We assume that the black hole accretion-produced jet may have the smaller IJOA (for its larger linear scale of launch region), and the BH spin-produced jet may have the larger IJOA (for its smaller launch region), such that the FSRQs are accretion dominated for their single peaked small IJOA, while the BL Lacs are either accretion or BH spin dominated for their double peaked IJOA.