Gravitational Waves

Gravitational waves are ripples in the fabric of spacetime, they were predicted a century ago by Einstein's Theory of General Relativity. The first direct observation was in 2015, from the merger of two black holes.

GW illustration

TianQin 天琴

TianQin, which means "Celestial Harp" in Chinese, is a proposed space-based gravitational wave detector. Unlike ground-based detectors, TianQin consists of three satellites that will form a laser-beam triangle around the Earth at an altitude of 100,000km. The longer baseline will allow us to capture more types of signals that can "pluck the strings" and thus extend our knowledge of the universe.

TianQin

My Research

Moving detectors into space will make us face additional challenges. I am studying how cooperation between space and the ground (i.e. multiband searches) will help to detect systems that evolve sequentially in the sensitive bands of both, and how information obtained from space detectors can help to distinguish the mechanisms by which these systems form.

matched filtering

PhD Dissertation

Wang, Han. Space-based Gravitational Wave Data Analysis of Stellar-mass Binary Black Holes: A Multiband View. PhD dissertation, Sun Yat-sen University, 2025.
(Written in Chinese; English abstract and table of contents available.)

Gravitational-wave frequency spectrum

Outreach

Check my outreach videos on Bilibili:

HUST-AEAI joined the Association of Astronomy Enthusiasts of Huazhong University of Science and Technology (HUST-AEA) when I was an undergraduate, and stay involved in sharing astronomical knowledge to the public.

Selected posters & brochures

A selection of posters and brochures I have designed for flagship events or association recruitment. Some of the background images were designed by others (if noted). Invalid QR codes have been removed.

Graduation season

Only wait for the bright moon, to share it with you from afar. (Background Design from the Internet)

Mid-Autumn

Enjoy the moon on the Mid-Autumn Festival

Brochure-1

Brochures for Astronomy Enthusiasts Association of HUST (Background Design: Yutong Chen)

Brochure-2

Brochures for Astronomy Enthusiasts Association of HUST (Background Design: Yutong Chen)

Mid-Autumn

Enjoy the moon on the Mid-Autumn Festival

Join us!

Association Recruitment (Background Design: Yutong Chen)

Poster for a talk by Dr. Xihao Deng (Background Design from the Internet)

Poster for a talk by Changchi Yang. (Background pictures from the Internet)

Curriculum Vitae

I completed my PhD in Astronomy at Sun Yat-sen University (SYSU) under the supervision of Prof. Yi-Ming Hu (2020–2025). Before that I got my Bachelor's degree in Physics from Huazhong University of Science and Technology (HUST). Check my detailed CV below↓

portrait

Publications: "Wang" Degeneracy

My given name "晗" (Han) means "pre-dawn, break of dawn" and surname "王" (Wang) means "king, monarch". However, due to "王" being the most common surname and the existence of many homophones in Chinese, my name in English form often results in even more pronounced "degeneracies" than in Chinese. :(

wangh

Research Software

GWSpace: a multi-mission science data simulator for space-based gravitational wave detection
pyEccentricFD: a Python/C adaptation of the EccentricFD waveform for space-based analyses

multi-detector

Funzone

Under Decoration / 装修中

sbank_simplified

A(n over-)simplified version of sbank for demonstrating the basic idea of generating template banks for gravitational wave detection