publications | Zeyu Gao 高泽宇

2025

Formation and Environmental Context of Giant Bulgeless Disk Galaxies in the Early Universe: Insights from Cosmological Simulations

Fangzhou Jiang, Jinning Liang, Bingcheng Jin, and 7 more authors

arXiv e-prints, Apr 2025

DOI Bib

@article{Jiang_2025,
  author = {{Jiang}, Fangzhou and {Liang}, Jinning and {Jin}, Bingcheng and {Gao}, Zeyu and {Wang}, Weichen and {Cantalupo}, Sebastiano and {Shen}, Xuejian and {Ho}, Luis C. and {Peng}, Yingjie and {Wang}, Jing},
  title = {{Formation and Environmental Context of Giant Bulgeless Disk Galaxies in the Early Universe: Insights from Cosmological Simulations}},
  journal = {arXiv e-prints},
  keywords = {Astrophysics of Galaxies, Cosmology and Nongalactic Astrophysics},
  year = {2025},
  month = apr,
  eid = {arXiv:2504.01070},
  pages = {arXiv:2504.01070},
  doi = {10.48550/arXiv.2504.01070},
  archiveprefix = {arXiv},
  eprint = {2504.01070},
  primaryclass = {astro-ph.GA},
  adsurl = {https://ui.adsabs.harvard.edu/abs/2025arXiv250401070J},
  adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

ApJL

The Critical Role of Dark Matter Halos in Driving Star Formation

Jing Dou, Yingjie Peng, Qiusheng Gu, and 13 more authors

Astrophysical Journal Letters, Mar 2025

DOI Bib

@article{Dou_2025,
  author = {{Dou}, Jing and {Peng}, Yingjie and {Gu}, Qiusheng and {Ho}, Luis C. and {Renzini}, Alvio and {Shi}, Yong and {Daddi}, Emanuele and {Zhao}, Dingyi and {Zhang}, Chengpeng and {Gao}, Zeyu and {Li}, Di and {Lyu}, Cheqiu and {Mannucci}, Filippo and {Maiolino}, Roberto and {Wang}, Tao and {Yuan}, Feng},
  title = {{The Critical Role of Dark Matter Halos in Driving Star Formation}},
  journal = {Astrophysical Journal Letters},
  keywords = {Galaxy evolution, Interstellar medium, Star formation, Galaxy quenching, Galaxy dark matter halos, 594, 847, 1569, 2040, 1880, Astrophysics - Astrophysics of Galaxies},
  year = {2025},
  month = mar,
  volume = {982},
  number = {1},
  eid = {L12},
  pages = {L12},
  doi = {10.3847/2041-8213/adb95c},
  archiveprefix = {arXiv},
  eprint = {2503.04243},
  primaryclass = {astro-ph.GA},
  adsurl = {https://ui.adsabs.harvard.edu/abs/2025ApJ...982L..12D},
  adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

ApJ
From Halos to Galaxies. X. Decoding Galaxy SEDs with Physical Priors and Accurate Star Formation History Reconstruction

Zeyu Gao, Yingjie Peng, Kai Wang, and 18 more authors

Astrophysical Journal. Find our released data for SDSS galaxies at Zenodo! , Jan 2025

Abs DOI Bib

The spectral energy distribution (SED) of galaxies is essential for deriving fundamental properties like stellar mass and star formation history (SFH). However, conventional methods, including both parametric and nonparametric approaches, often fail to accurately recover the observed cosmic star formation rate (SFR) density due to oversimplified or unrealistic assumptions about SFH and their inability to account for the complex SFH variations across different galaxy populations. To address this issue, we introduce a novel approach that improves galaxy broadband SED analysis by incorporating physical priors derived from hydrodynamical simulations. Tests using IllustrisTNG simulations demonstrate that our method can reliably determine galaxy physical properties from broadband photometry, including stellar mass within \SI0.05dex, current SFR within \SI0.3dex, and fractional stellar formation time within\SI0.2dex, with a negligible fraction of catastrophic failures. When applied to the Sloan Digital Sky Survey (SDSS) main photometric galaxy sample with spectroscopic redshift, our estimates of stellar mass and SFR are consistent with the widely used MPA-JHU and GSWLC catalogs. Notably, using the derived SFHs of individual SDSS galaxies, we estimate the cosmic SFR density and stellar mass density with remarkable consistency to direct observations up to z ∼6. This demonstrates a significant advancement in deriving SFHs from SEDs that closely align with observational data. Consequently, our method can reliably recover observed spectral indices such as D_\rm n(4000) and \rm H\delta_\rm A by synthesizing the full spectra of galaxies using the estimated SFHs and metal enrichment histories, relying solely on broadband photometry as input. Furthermore, this method is extremely computationally efficient compared to conventional approaches.
@article{Gao_2025, author = {{Gao}, Zeyu and {Peng}, Yingjie and {Wang}, Kai and {Ho}, Luis C. and {Renzini}, Alvio and {Gallazzi}, Anna R. and {Mannucci}, Filippo and {Mo}, Houjun and {Jing}, Yipeng and {Yang}, Xiaohu and {Wang}, Enci and {Zhao}, Dingyi and {Dou}, Jing and {Gu}, Qiusheng and {Lyu}, Cheqiu and {Maiolino}, Roberto and {Wang}, Bitao and {Wang}, Yu-Chen and {Xu}, Bingxiao and {Yuan}, Feng and {Zhu}, Xingye}, title = {{From Halos to Galaxies. X. Decoding Galaxy SEDs with Physical Priors and Accurate Star Formation History Reconstruction}}, journal = {Astrophysical Journal}, keywords = {Galaxy evolution, Galaxy properties, Galaxy stellar content, Galaxy colors, Galaxy ages, Galaxy masses, Star formation, Galaxy quenching, 594, 615, 621, 586, 576, 607, 1569, 2040, Astrophysics - Astrophysics of Galaxies}, year = {2025}, month = jan, volume = {979}, number = {1}, eid = {66}, pages = {66}, doi = {10.3847/1538-4357/ad9a5c}, archiveprefix = {arXiv}, eprint = {2408.07749}, primaryclass = {astro-ph.GA}, adsurl = {https://ui.adsabs.harvard.edu/abs/2025ApJ...979...66G}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} }

ApJ

From Halos to Galaxies. VI. Improved Halo Mass Estimation for SDSS Groups and Measurement of the Halo Mass Function

Dingyi Zhao, Yingjie Peng, Yipeng Jing, and 18 more authors

Astrophysical Journal, Jan 2025

DOI Bib

@article{Zhao_2025,
  author = {{Zhao}, Dingyi and {Peng}, Yingjie and {Jing}, Yipeng and {Yang}, Xiaohu and {Ho}, Luis C. and {Renzini}, Alvio and {Gallazzi}, Anna R. and {Lyu}, Cheqiu and {Maiolino}, Roberto and {Dou}, Jing and {Gao}, Zeyu and {Gu}, Qiusheng and {Mannucci}, Filippo and {Mo}, Houjun and {Wang}, Bitao and {Wang}, Enci and {Wang}, Kai and {Wang}, Yu-Chen and {Xu}, Bingxiao and {Yuan}, Feng and {Zhu}, Xingye},
  title = {{From Halos to Galaxies. VI. Improved Halo Mass Estimation for SDSS Groups and Measurement of the Halo Mass Function}},
  journal = {Astrophysical Journal},
  keywords = {Galaxies, Galaxy evolution, Galaxy formation, Galaxy dark matter halos, 573, 594, 595, 1880, Astrophysics - Astrophysics of Galaxies, Astrophysics - Cosmology and Nongalactic Astrophysics},
  year = {2025},
  month = jan,
  volume = {979},
  number = {1},
  eid = {42},
  pages = {42},
  doi = {10.3847/1538-4357/ad991f},
  archiveprefix = {arXiv},
  eprint = {2408.12442},
  primaryclass = {astro-ph.GA},
  adsurl = {https://ui.adsabs.harvard.edu/abs/2025ApJ...979...42Z},
  adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

2024

ApJ

Abundant Molecular Gas in the Central Region of Lenticular Galaxy PGC 39535

Jiantong Cui, Qiusheng Gu, Shiying Lu, and 3 more authors

Astrophysical Journal, Nov 2024

DOI Bib

@article{Cui_2024,
  author = {{Cui}, Jiantong and {Gu}, Qiusheng and {Lu}, Shiying and {Chen}, Zhengyi and {Xu}, Can and {Gao}, Zeyu},
  title = {{Abundant Molecular Gas in the Central Region of Lenticular Galaxy PGC 39535}},
  journal = {Astrophysical Journal},
  keywords = {Galaxies, Galaxy evolution, Galaxy kinematics, Lenticular galaxies, Early-type galaxies, 573, 594, 602, 915, 429, Astrophysics - Astrophysics of Galaxies},
  year = {2024},
  month = nov,
  volume = {975},
  number = {1},
  eid = {124},
  pages = {124},
  doi = {10.3847/1538-4357/ad77a1},
  archiveprefix = {arXiv},
  eprint = {2409.05172},
  primaryclass = {astro-ph.GA},
  adsurl = {https://ui.adsabs.harvard.edu/abs/2024ApJ...975..124C},
  adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}