Astrophysics · Gravitation · Cosmology

Exploring darkmatter problemthrough scalingrelations

I study how galaxies and galaxy clusters reveal the distribution of matter—connecting empirical regularities, gravitational lensing, and dynamics to test our understanding of gravity and dark matter.

Research Scholar · Department of Physics · National Central University, Taiwan

Research

Two paths into one fundamental question

View all research →

Scaling Relations

Empirical acceleration and mass–velocity relations across galaxies, groups, brightest cluster galaxies, and clusters.

Read the research

Lensing & Time Delay

Using strong lensing and light-travel-time effects to probe mass distributions and relativistic gravity.

Read the research

Contributions

Three results to start with

See all publications →

Scaling relations

A baryonic Faber–Jackson relation across galaxy systems

A systematic comparison of galaxy groups, elliptical galaxies, and dwarf galaxies across a broad dynamical range.

Read the representative paper ↗

Cluster dynamics

A distinct acceleration relation at cluster scales

Mass and acceleration measurements for brightest cluster galaxies and galaxy clusters, extending scaling-relation tests beyond individual galaxies.

Read the representative paper ↗

Lensing & time delay

Connecting lensing, time delay, and gravity

Lensing and time-delay calculations that keep observable constraints distinct from the theoretical framework used to interpret them.

Read the representative paper ↗

For students

Curious about galaxies, gravity, or the dark matter problem?

I welcome conversations with students interested in learning how observations, dynamics, and careful inference can be brought together. Explore suitable backgrounds and how to get in touch.

For students →

Teaching / DYL

Designing Your Life at NCU

A one-credit service-learning course that helps first-year students use design thinking and small experiments to shape their university life.

Explore the DYL course →