Image Details

Choose export citation format:

Electromagnetic Flares from Compact-object Mergers in Active Galactic Nucleus Disks: Signatures and Predictions

  • Authors: Hiromichi Tagawa, Zoltán Haiman, Shigeo S. Kimura, Hassen M. Yesuf, Hengxiao Guo

Hiromichi Tagawa et al 2026 The Astrophysical Journal 1006 .

  • Provider: AAS Journals

Caption: Figure 6.

The fraction of the radial distance from the SMBH (logarithmic scale) for cases transitioning from the ADIOS to the ZEBRA state due to kicks, as a function of the SMBH accretion rate (in units of Eddington rate) and SMBH mass in the TQM model. The radial distance ranges from 6 × GMSMBH/c2 to 6 × 107 × GMSMBH/c2, with an assumed BH mass mBH = 50 M. Red circles highlight cases where the transition from the ADIOS to the ZEBRA state occurs at the minimum HAGN/RBH location, where mergers are more probable. Gray empty circles represent cases where no transition regions appear. We evaluate ﹩{\dot{M}}_{{\rm{out}}}﹩ at uniform logarithmic intervals separated by a factor of 2 for MSMBH≤107 M and ﹩\sqrt{2}﹩ for MSMBH > 107 M, where ﹩{\dot{M}}_{{\rm{out}}}﹩ is the inflow rate at the outer boundary (6 × 107 × GMSMBH/c2). This results in uneven coverage in ﹩{\dot{M}}_{{\rm{SMBH}}}﹩, reflecting its nonlinear dependence on ﹩{\dot{M}}_{{\rm{out}}}﹩. In the TQM model, when the AGN luminosity exceeds ≳1044 erg s−1, the transition from the ADIOS to the ZEBRA state is associated with kicks at the minimum HAGN/RBH region. We conclude that high-accretion rate, massive SMBHs are the most promising to produce the EM counterparts as discussed here.

Other Images in This Article

Show More

Copyright and Terms & Conditions

Additional terms of reuse