Hi! I'm I-Da Chiang (江宜達, pronounced roughly as: Yee-Dah Jyang), an observational astronomer studying dust and the interstellar medium in the nearby galaxies. Currently working on the organization of the 47th International School for Young Astronomers (ISYA).

Research

I am interested in the relations between dust, metal, and neutral gas in the interstellar medium (ISM), especially how these relations evolves in different physical environments. I use the spatially-resolved (kpc scales), multi-wavelength data (far-ultraviolet to radio) to trace various physical quantities in the nearby universe in order to conduct my research.

Fitting FIR dust emission with model & Analysys of the environmental dependence of dust properties

Chiang et al. (2018), "The Spatially Resolved Dust-to-metals Ratio in M101"

Utomo & Chiang et al. (2019), "The Resolved Distributions of Dust Mass and Temperature in Local Group Galaxies"

Koch & Chiang et al. (2020), "Spatial power spectra of dust across the Local Group: No constraint on disc scale height"

Chiang et al. (2021), "Resolving the Dust-to-Metals Ratio and CO-to-H2 Conversion Factor in the Nearby Universe"

Chastenet et al. (2021), "Benchmarking Dust Emission Models in M101"

Chiang et al. (2023), "Kpc-scale properties of dust temperature in terms of dust mass and star formation activity"

Tools

Wavelength unit conversion webtool

A webtool for quick conversion between wavelength units.

Click and examine

A python plotting template, which reads the clicking position and reflects on the other subplots in real time.

About Me

Started Mid-September, 2025, I joined NTNU/NCU as an assistant working on the organization of the 47th International School for Young Astronomers (ISYA). I still have some ongoing scientific projects at this stage.

I joined Institute of Astronomy and Astrophysics, Academia Sinica (ASIAA) as a postdoc fellow since 2021. At ASIAA, I worked with Dr. Hiroyuki Hirashita to combine the power of semi-analytical models and observations to study dust evolution. If you found my name from my latest publication with Hiro (Chiang et al. 2025, MNRAS, 536, 2392a), yes, I can forward your greetings to Hiro.

Prior to ASIAA, I got my PhD in 2021 at University of California San Diego (UCSD), working with Prof. Karin Sandstrom to observe interstellar dust, gas and metals in the nearby universe. I have been a member of of the z0MGS and PHANGS collaborations since my days at UCSD.

I was born and raised in Taiwan, with ethnicity ~98% Han Chinese + ~2% Austronesian. I got my BS and MS in physics at National Taiwan University (NTU). Outside of work, I love playing badminton. Happy to bring friends who visits Taipei for some badminton games. I'm also into otaku stuff—anime, manga, and video games. Have been constantly building Gundam plastic models since 2024.

Contact