What question did this study set out to answer?

To assess the role of halo mass in the quenching of star formation in central galaxies.

December 22, 2025Open Access

The dominant role of dark matter halo in quenching central galaxies

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Authors

DZDingyi ZhaoCivil Aviation University of China YPYingjie PengUniversity of Chicago

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Implication

Observational findings reveal halo mass is crucial for quenching star formation in central galaxies, indicating AGN feedback plays a significant role.

Key Points

To assess the role of halo mass in the quenching of star formation in central galaxies.
Re-estimated halo masses for SDSS groups using observational measures.
Applied weak lensing-derived SHMRs to correct abundance matching data.
Analyzed the influence of halo mass on quenching after controlling for central properties.
Halo mass is confirmed as a dominant factor in quenching central galaxies.
A mass threshold of M_h∼10^{12.1}M_☉ was identified for effective AGN feedback.
Systematic biases in previously derived halo masses were revealed through direct observational measurements.

Cite This Study

Zhao et al. (2025) studied this question.

synapsesocial.com/papers/69488bc877063b71e748cfea https://doi.org/10.48550/arxiv.2512.16290

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Implication

Observational findings reveal halo mass is crucial for quenching star formation in central galaxies, indicating AGN feedback plays a significant role.

The dominant role of dark matter halo in quenching central galaxies

Discussion

Member takes

Implication

Key Points

Cite This Study

The dominant role of dark matter halo in quenching central galaxies

Discussion

Member takes

Implication

Key Points

Cite This Study

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