Antoine Marchal

Dr. Antoine Marchal is a Researcher at the Research School of Astronomy & Astrophysics, Australian National University, specializing in observational studies of the interstellar medium with emphasis on cold neutral hydrogen structures.

His core research domains include:

• Cold Neutral Medium
• Small Magellanic Cloud
• Milky Way
• Magellanic Clouds
• Interstellar Matter

He employs advanced radio astronomy techniques including absorption spectroscopy and Fourier analysis of HI 21 cm emission to investigate gas phase transitions and galactic structure.

From 2022-2025, Dr. Marchal published 9 articles in leading journals like Monthly Notices of the Royal Astronomical Society and Astronomy and Astrophysics, demonstrating consistent focus on cold gas diagnostics through stacking methods and spectral analysis. His work frequently leverages data from ASKAP and GASKAP surveys, revealing multi-phase cloud structures in Magellanic systems and Milky Way cirrus regions.

Registered to supervise ANU research students, Dr. Marchal contributes to major international collaborations including GASKAP and DHIGLS. His methodological innovations in supercomputing-based data processing highlight technical expertise alongside astrophysical insights.

He actively participates in the GASKAP survey team and DHIGLS collaboration, working with global partners to map neutral hydrogen distributions across galactic environments using next-generation radio telescopes.