Bingcheng Jin

Department of Astronomy, University of Michigan	bcjin@umich.edu
1085 S. University, 323 West Hall	bc.jin137@gmail.com
Ann Arbor, MI 48109-1107	+086 158-1018-2032

Education

2021-2025

BSc, Astronomy; School of Physics, Peking University (Beijing, China)

Double Major in Economy; National School of Development, Peking University

Rank: top 10% (2/32) in Class; Outstanding Graduate of Beijing

2025-now: PhD, Astronomy; Department of Astronomy, University of Michigan (Ann Arbor, USA)

Research Interest and Experience

Galaxy Morphology

Theme: High-redshift Galaxies; Parametric Fitting; Color Gradient; Spatially Resolved SED; JWST Deep Fields

Project: Color Gradients at High Redshift

Supervised by Prof. Luis C. Ho, Peking University

Use GALFIT (and GALFITM) to model the 2D light distribution of high-redshift galaxies in public deep fields; Propagate the uncertainty and bias of the parametric measurement and redshift effect with realistic mocks.
Unveil color gradients (especially positive gradients) in the early universe using the wavelength dependence of structural parameters;
Estimate the rest-frame SEDs and infer physical properties using EAzY and CIGALE;
Use image decomposition to rule out the potential AGN light contribution.

Project: Central 1 kpc Stellar Mass Density in Cluster Environment

Jointly supervised by Prof. Jinyi Shangguan and Prof. Luis C. Ho, Peking University

Source detection and cluster member identification with software GalfitX.
Probe the environmental effect of galaxy quenching with central stellar mass density;

Galaxy Formation and Evolution

Theme: Cosmological Simulations; Morphological Evolution; Galaxy-Halo Connection; Large-Scale Structure

Project: Understanding Giant Bulgeless Discs at Cosmic Morning

Jointly supervised by Prof. Fangzhou Jiang and Prof. Luis C. Ho, Peking University

Measure bulge/disc component of mock galaxies in cosmological simulations in search of the rarest giant disc galaxies formed at z=1-3;
Discern simulated counterparts to reveal physical origins (halo property, merger history, etc) behind observational phenomena; Connect galaxy morphological characteristics to environment through LSS.

AGN Physics

Theme: VHE Observation; AGN Jet; Particle Accelaration; Coevolution of Galaxy and SMBH

Project: SEDs and Morphologies of High Energy Sources Revealed by LHAASO

Jointly supervised by Prof. Gwenael Giacinti and Prof. Hao Zhou, Tsung-Dao Lee Institute (TDLI) & Shanghai Jiaotong University

Reduce LHAASO observation data to measure high energy spectra of galactic and extragalactic sources (AGNs); Find best-fit TS value for morphological composition of HE extended sources;
Fit multiband SEDs of HE sources using synchrotron emission and inverse Compton process.

Publications

2024.11

Jin, Bingcheng, Ho, L. C., Sun, W. (submitted to ApJ)

"A High Incidence of Central Star Formation Inferred from Color Gradiants at z>4"[link]

2024.12

Jiang, F., Liang, J., Jin, Bingcheng, et al. (submitted to Nature Astronomy)

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

Positions and Professional Experience

2024.03-now

Observation Assistant of Peking University Xinglong Telescope, Hebei, China

(the only undergraduate offer)

2024 Fall

Teaching Assistant, Observational Experiments of Astrophysics; Peking University

Assisted Prof. Linhua Jiang, Ran Wang and Jing Wang in the course of Observational Experiments of Astrophysics, including grading, tutoring, observation and etc.

2024 Spring

Teaching Assistant, Modern Astronomy; Peking University

Assisted Prof. Ke Wang in the course of Modern Astronomy, including grading, tutoring, remote observation and etc.

Honors and Awards

2025 Outstanding Graduate of Beijing
2025 Excellent Graduate, Peking University
2024 Qibin Li Scholarship (李启斌奖学金,8k), Peking University
2024 Shuqi Scholarship (舒琦奖学金,5k), Peking University
2024 Merit Student (三好学生), Peking University
2024 First Prize LinBridge Scholarship (林桥奖学金, founded by Prof. Douglas N. C. Lin), Kavli Institute for Astronomy and Astrophysics, Peking University
2023 Lingjun Pilot Scholarship (灵均领航奖学金,10k), Peking University
2023 Merit Student (三好学生), Peking University
2022 C.Y. Wang-Y. Cheng First Prize Scholarship (王晨扬-程雅一等奖学金,12k), School of Physics, Peking University

Presentations

2024-05-23

Talk

CSST Galaxy/AGN Discussion, Beijing China

"Unveiling Large-Scale Structure: New Chapter on Galaxy Enviroment with the advent of Prime Focus Spectrogragh" [slide]

2024-01-25

Winter School

Tsung-Dao Lee Institute (TDLI) Astronomy Winter School, Shanghai China

"SEDs and Morphologies of High Energy Sources Revealed by LHAASO" [slide]

2023-08-22

Workshop

CSST Galaxy/AGN Workshop, Beijing China

"Exploring size-mass relation of high-redshift galaxies with JWST and CSST"

Extra Information

Mini Projects

Self-built 21cm Hydrogen Line radio receiver: a report on the observation of 21cm hydrogen line supervised by Prof. Ke Wang (PKU) and Chengjin Jin (NAOC).
Spectroscopic Observations: a report on the observation of Carbon stars and Wolf-Rayet stars with PKU DoA Dome telescope; Photometric Observations: reports on observations of star clusters and variable stars with PKU DoA Dome telescope.
Parallax: a code for astrometric parallax measurement; ExoRV: A python code to find the best fit for radial velocity in exoplanet research (Under the guidance of Prof. Subo Dong).
Cosmic Inflation: an undergraduate-level code to simulate cosmic inflation, namely how cosmological scale factor evolve within the earliest stage of universe under severel models including chaotic inflation, slow-roll inflation and etc.
ChandrasekharLimit: a basic calculation to the Chandrasekhar limit of White Dwarfs (Assignment of Introduction to Astrophysics, 2023 Spring, Peking University).

Language

TOEFL: 104 (R29, L29, S24, W22, 2024.10); GRE: 322 (V152, Q170, A3.5);