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arXiv · 2503.02325

Observational evidence for a correlation between the magnetic field of jets and star formation rate in host galaxies

Yongyun Chen·Qiusheng Gu·Junhui Fan·Xiaotong Guo·Xiaoling Yu·Nan Ding·Dingrong Xiong
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Abstract

Accretion supermassive black holes in the center of active galaxies usually produce ``jets''-collimated bipolar outflows of relativistic particles. Magnetic fields near the black hole event horizon may play a crucial role in the formation of jets/outflows. Both theory and observation indicate that jets/outflows driven by centrally active supermassive black holes (SMBHs) have a feedback effect on the overall properties of the host galaxies. Therefore, the magnetic field is a key ingredient for the formation and evolution of galaxies. Here we report a clear correlation between the magnetic field of jets and star formation rate (SFR) for a large sample of 96 galaxies hosting supermassive black holes, which suggests that the star formation of active galactic nuclei (AGN) host galaxies may be powered by the jets.

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Yongyun Chen, Qiusheng Gu, Junhui Fan, Xiaotong Guo, Xiaoling Yu, Nan Ding, Dingrong Xiong. 2025-03-04. Observational evidence for a correlation between the magnetic field of jets and star formation rate in host galaxies. https://arxiv.org/abs/2503.02325

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