Alvin C. N. Chu

Constraining dark matter properties with self-annihilating dark matter admixed white dwarfs

• Aug 2023 — Present

Supervisors: Prof. M.-C. Chu, Dr. L.-M. Lin

• Derive framework for white dwarfs partially-sustained by photon pressure sourcing from dark matter self-annihilation in hydrostatic balance
• Study the stable structure configuration of white dwarfs with self-annihilating dark matter admixed
• Constrain the dark matter interaction rate and particle mass by comparing the observed white dwarf mass-radius relationship with the simulated one

Testing stability and asteroseismology of bosonic dark matter admixed white dwarfs with variable scattering length

• May 2022 — Oct 2023

Final Year Project Report
Supervisor: Prof. M.-C. Chu

• Demonstrated admixing bosonic dark matter can possibly explain specific mass-radius relationships in white dwarfs
• Illustrated the instability of white dwarfs partially hosting attractive bosonic dark matter lead to black holes
• Probed the asteroseismology of white dwarfs containing bosonic dark matter of density-dependent scattering length
• Tested stability and hydrodynamics of admixed white dwarfs under general relativity and approximated rotation

Addressing Missing Satellite Problem by decyaing dark matter halo

• May — Jul 2021

Poster
Supervisor: Prof. M.-C. Chu

• Modified the model to be more realistic by transforming initial circular orbits to elliptical orbits with a range of eccentricity
• Simulated decaying dark matter halo density profile time evolution to account for Missing Satellite Problem
• Constrained decaying dark matter nature with lowered expected amount of satellite galaxies in line with observed amount

The Chinese University of Hong Kong

Master of Philosophy in Physics • Aug 2024 — Present

The Chinese University of Hong Kong

Bachelor of Science in Physics • Aug 2019 — Jul 2024

• B.Sc. with Honours, First Class
• Streams: Enrichment Stream in Theoretical Physics; Astrophysics and Particle Physics
• Minor: Earth System Science

University of Oslo

University-wide Exchange Program • Jan — Jun 2022

Hong Kong Observatory

Intern • Jan — Dec 2023

Department of Physics, CUHK

Summer Undergraduate Research Intern • May — Jul 2021 & May — Jul 2022

HAESL Scholarship

Hong Kong Aero Engine Services Limited • 2019 — 2022

Talent Development Scholarship

HKSAR Government • 2022

Dean's List, 2019-2020

Faculty of Science, The Chinese University of Hong Kong • 2020

Physics Admission Scholarship

Department of Physics, The Chinese University of Hong Kong • 2019

Technical Forum

Hong Kong Observatory

• 153rd Technical Forum: May 2023
• 156th Technical Forum: Sept 2023

Summer Undergraduate Research Internship Program Poster Presentation

The Chinese University of Hong Kong

• 2021 SURIP: Jul 2021
• 2022 SURIP: Jul 2022

• Dark Matter
• Compact Objects
• Astroparticle Physics
• Cosmology
• Computational Physics

Programming

Experienced in Python, C, Fortran, Julia and SQL

Languages

Fluent in English, Cantonese and Mandarin Chinese

Physics Student Conference 2022, CUHK

Organizer • May — Oct 2022