Online Seminar | USACTalk #02

Three-Dimensional Magnetic Fields in the Interstellar Medium and Star-Forming Regions

(3D Magnetic Fields in the Interstellar Medium and Star-Forming Regions)

Within the framework of the USACTalk academic seminar series, jointly organized by the USAC Astronomy Club and the Faculty of Physics and Engineering Physics, University of Science, Vietnam National University Ho Chi Minh City, the program aims to connect high school students, university students, and the science-interested public with researchers actively working in the fields of Astronomy, Astrophysics, Cosmology, and Space Science.

The Organizing Committee cordially invites faculty members, students, postgraduate learners, and all interested participants to attend USACTalk #02, an online seminar entitled “Three-Dimensional Magnetic Fields in the Interstellar Medium and Star-Forming Regions.”

Guest Speaker: PhD Candidate Dr. Truong Le Gia Bao

Korea Astronomy and Space Science Institute

University of Science and Technology, Republic of Korea

Event Information

- Time: 20:00 – 21:30, Sunday, February 1, 2026

- Format: Online via Google Meet

- Audience: High school students, undergraduate and postgraduate students, and individuals interested in astronomy

- Registration: https://forms.gle/6Psua5FH9z6ARFzm8

Note: Participation is limited. The registration form will close once the maximum number of participants is reached.

Abstract and Main Content

Magnetic fields are ubiquitous throughout the Universe, from its earliest stages to the present day, and play a crucial role in the formation and evolution of the interstellar medium and star-forming regions. Rapid advances in modern observational instruments over recent decades have enabled magnetic field measurements across a wide range of spatial scales.

In this talk, the speaker will review observational techniques and methods for measuring magnetic fields in the interstellar medium and star-forming regions that have been developed over many decades. Traditional approaches typically allow magnetic fields to be inferred only along a single direction in three-dimensional space—either along the line of sight or projected onto the plane of the sky—making the reconstruction of full three-dimensional magnetic field structures a significant challenge.

The seminar will introduce a novel method for probing three-dimensional magnetic fields using dust polarization, combined with modern models describing dust grain alignment mechanisms in magnetic fields. The speaker will also present applications of this method to the study of the three-dimensional magnetic field structure of the molecular cloud G11 based on dust polarization observations, as well as discuss the potential for extending this approach in future studies with next-generation polarimetric telescopes. Through these perspectives, the seminar aims to provide deeper insight into the overall role of magnetic fields in star formation processes and the evolution of the interstellar medium.

For further inquiries, please contact: seminar@clbtvusac.com