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Donghui Jeong

Donghui Jeong — Professor of Astronomy and Astrophysics — Faculty
Office: 518 Davey Laboratory
Address: 525 Davey Laboratory University Park, PA 16802 US
djeong@psu.edu
+1 814 865 1117
Donghui Jeong
Astronomy HETDEX Gravitational Waves CTOC

I am a cosmologist/astrophysicist who studies the origin and the evolution of our Universe.

I am working as a professor at Astronomy and Astrophysics department, Eberly College of Science, the Pennsylvania State University. I am also a director of the Center for Theoretical and Observational Cosmology (CTOC) in the Institute for Gravitation & the Cosmos (IGC). Prior to this, I was a postdoctoral fellow in theoretical cosmology in Physics and Astronomy department in the Johns Hopkins University and the TAPIR (Theoretical AstroPhysics Including Relativity) group in PMA Division (Physics, Mathematics and Astronomy) at Caltech working with Prof. Marc Kamionkowski. Even before, I was a graduate student of Texas Cosmology Center (TCC) and the Astronomy Department in the University of Texas at Austin. My thesis adviser is Prof. Eiichiro Komatsu, and here are my academic trees from mathematics genealogy project and academictree.org

I am working on various aspects of theoretical cosmology, but I also enjoy working with the real data. In particular, I am working for a high redshift galaxy survey called HETDEX (Hobby-Eberly Telescope Dark Energy eXperiment). The main theme of this mission is studying properties of dark energy by analyzing the distribution of galaxies (Lyman-alpha emitters). In current survey design, we shall observe about a million galaxies within 540 sq. deg. area in the sky at redshift of 1.9 < z <3.5. We have been obtaining data from 2017.

Visit my website

ORCID: 0000-0002-8434-979X

Publications
  1. James Gurian, Donghui Jeong, Boyuan Liu “Zero Metallicity with Zero CPU Hours: Masses of the First Stars on the Laptop.” 963 1 (2024) doi:10.3847/1538-4357/ad1e5b
  2. Jai-chan Hwang, Donghui Jeong, Hyerim Noh, Clemente Smarra “Pulsar Timing Array signature from oscillating metric perturbations due to ultra-light axion.” 2024 2 (2024) doi:10.1088/1475-7516/2024/02/014
  3. Zhenyuan Wang, Donghui Jeong “Reconstructing the long-wavelength matter density fluctuation modes from the scalar-type clustering fossils.” 2024 7 (2024) doi:10.1088/1475-7516/2024/07/020
  4. Sung Mook Lee, Dong Kang, Jinn-Ouk Gong, Donghui Jeong, Dong-Won Jung, Seong Park “Cosmological Consequences of Kinetic Mixing between Photon and Dark Photon.” arXiv e-prints (2023) doi:10.48550/arXiv.2307.14798
  5. Joseph Tomlinson, Donghui Jeong “Spherical bispectrum: a novel visualization scheme for facilitating comparisons.” 2023 8 (2023) doi:10.1088/1475-7516/2023/08/040
  6. Zhenyuan Wang, Donghui Jeong, Atsushi Taruya, Takahiro Nishimichi, Ken Osato “Perturbation theory remixed: Improved nonlinearity modeling beyond standard perturbation theory.” 107 10 (2023) doi:10.1103/PhysRevD.107.103534
  7. James Gurian, Michael Ryan, Sarah Schon, Donghui Jeong, Sarah Shandera “A Lower Bound on the Mass of Compact Objects from Dissipative Dark Matter.” 939 1 (2022) doi:10.3847/2041-8213/ac997c
  8. Sungwook Hong, Donghui Jeong, Ho Hwang, Juhan Kim “Revealing the Local Cosmic Web from Galaxies by Deep Learning.” 913 1 (2021) doi:10.3847/1538-4357/abf040
  9. Yonadav Ginat, Vincent Desjacques, Donghui Jeong, Fabian Schmidt “Covariant decomposition of the non-linear galaxy number counts and their monopole.” 2021 12 (2021) doi:10.1088/1475-7516/2021/12/031
  10. Divya Singh, Michael Ryan, Ryan Magee, Towsifa Akhter, Sarah Shandera, Donghui Jeong, Chad Hanna “Gravitational-wave limit on the Chandrasekhar mass of dark matter.” 104 4 (2021) doi:10.1103/PhysRevD.104.044015

Donghui Jeong's research group

Name Role Affiliations Email Phone Office Centers Research topics
John Blakely John Blakely Undergraduate Student Astronomy, Physics jpb6799@psu.edu +1 814 865 0410 Osmond Laboratory CTOC, IGC Black Holes, Dark Matter
Rodney Jones Rodney Jones Undergraduate Student Astronomy rjj5488@psu.edu 9412878113 N/A CTOC Dark Matter
Greg Lukens Greg Lukens Graduate Student Astronomy gmlukens@psu.edu +1 814 865 0419 441 Davey Laboratory CTOC Cosmic Surveys
Ella Newhouse Ella Newhouse Undergraduate Student Astronomy ejn5324@psu.edu 412-699-6700 N/A CTOC Cosmic Surveys
Zhenyuan Wang Zhenyuan Wang Graduate Student zzw173@psu.edu +1 814 865 0419 532 C Davey Laboratory CTOC Cosmic Surveys
Tristan Weaver Tristan Weaver Graduate Student Astronomy tsw5383@psu.edu 9494688381 115 Davey Laboratory IGC Gravitational Waves

Donghui Jeong's former group members

Name Role Affiliations Email Phone Office Centers Research topics
James Gurian James Gurian Faculty Astronomy jhg5248@psu.edu 440 Whitmore Laboratory IGC Black Holes, Dark Matter, Gravitational Waves
About our wordmark
Monica Rincon Ramirez

The IGC wordmark was created by Monica Rincon Ramirez while she was a graduate student at the Institute. Monica enjoys drawing new connections between fundamental theory and observations. Her graduate work included general relativity, loop quantum gravity, and quantum fields in cosmological backgrounds; her thesis focused on effective quantum corrections to gravitational phenomena from spinfoams and applications to cosmology. She received her PhD in 2024.

The wordmark symbolizes the scope of research at the IGC. The base represents quantum gravity, evoking the quantum geometrical picture from spinfoams and loop quantum gravity — approaches studied at the Center for Fundamental Theory. The middle shows galaxies embedded in a smooth surface characteristic of spacetime in general relativity and the larger physical scales studied at the Center for Theoretical and Observational Cosmology. The top curves to an extreme representing a supermassive black hole accompanied by an energetic jet, with a binary black hole pair nearby — the high-energy phenomena studied at the Center for Multimessenger Astrophysics.