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Bridging Scales: Coupling the Galactic Nucleus to the Larger Cosmic Environment

  • Authors: Kung-Yi Su, Priyamvada Natarajan, Hyerin Cho, 혜린 조, Ramesh Narayan, Philip F. Hopkins, Daniel Anglés-Alcázar, Cora Prather

Kung-Yi Su et al 2025 The Astrophysical Journal Letters 981 .

  • Provider: AAS Journals

Caption: Figure 1.

Results for the M87* analog runs: the BH mass; AGN wind energy flux (averaged over 100 Myr); net increase in BH mass; net mass in stars formed, along with the corresponding BH accretion rates and star formation rates for Runs A (red curves), B (magenta curves), C1 (purple curves), C2 (blue curves) and C3 (green curves). The gray shaded region marks the BH accretion rate estimated from EHT data (Event Horizon Telescope Collaboration et al. 2021). Without AGN feedback, both Runs A and B exhibit runaway BH growth, even when the accretion rate is suppressed to 0.01 of the Bondi rate. As the AGN feedback efficiency is increased in Runs C1, C2, and C3, the corresponding BH accretion rates and star formation rates are lower. As seen, a feedback efficiency ranging between 0.15 and 1 (Runs C2 and C3) is required to match the EHT-inferred accretion rate. Note that Run A (red curve) has no star formation throughout the simulation, so it does not appear in the stellar mass and star formation rate panels.

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