Thiébaut-Antoine Schirmer

Doctor at Astronomy and Plasmaphysics

Cosmic dust plays a crucial role in the physico-chemistry of the Universe. The dust properties (i.e. composition, size, and shape) are however still not well understood. In addition, the wide disparity in physical conditions (i.e. irradiation and density) across the Universe triggers an evolution of the dust properties through phenomena such as accretion, coagulation, destruction. My main objective is to understand how dust evolves as a response to the physical conditions and to constrain its properties.

Based on observations from the infrared to the millimeter range, I study dust properties in various environments, from their creation in the atmosphere of evolved stars (AGBs) to the early universe in highredshift galaxies, through extreme environments nearby AGNs.

Source: chalmers.se
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Showing 12 publications

2024

OH as a probe of the warm-water cycle in planet-forming disks

Marion Zannese, Benoit Tabone, Emilie Habart et al
Nature Astronomy. Vol. 8 (5), p. 577-586
Journal article
2024

PDRs4All V. Modelling the dust evolution across the illuminated edge of the Orion Bar

Meriem Elyajouri, Nathalie Ysard, Alain Abergel et al
Astronomy and Astrophysics. Vol. 685
Journal article
2024

A far-ultraviolet-driven photoevaporation flow observed in a protoplanetary disk

O. Berné, Emilie Habart, Els Peeters et al
Science. Vol. 383 (6686), p. 988-992
Journal article
2024

PDRs4All: III. JWST's NIR spectroscopic view of the Orion Bar

Els Peeters, Emilie Habart, O. Berné et al
Astronomy and Astrophysics. Vol. 685
Journal article
2023

High-angular-resolution NIR view of the Orion Bar revealed by Keck/NIRC2

Emilie Habart, R. Le Gal, Carlos Alvarez et al
Astronomy and Astrophysics. Vol. 673
Journal article
2023

Editorial: Cosmic dust—its formation, processing, and destruction

D. Gobrecht, Ankan Das, Robin Baeyens et al
Frontiers in Astronomy and Space Sciences. Vol. 10
Other text in scientific journal
2023

The extremely sharp transition between molecular and ionized gas in the Horsehead nebula

C. Hernández-Vera, Viviana Guzman, J.R. Goicoechea et al
Astronomy and Astrophysics. Vol. 677
Journal article
2023

The Origin of Dust Polarization in the Orion Bar

Valentin J. M. Le Gouellec, B-G Andersson, Archana Soam et al
Astrophysical Journal. Vol. 951 (2)
Journal article
2023

Formation of the methyl cation by photochemistry in a protoplanetary disk

O. Berné, Marie Aline Martin-Drumel, Ilane Schroetter et al
Nature. Vol. 621 (7977), p. 56-59
Journal article
2022

Nano-grain depletion in photon-dominated regions

Thiébaut-Antoine Schirmer, N. Ysard, E. Habart et al
Astronomy and Astrophysics. Vol. 666
Journal article
2022

PDRs4All: A JWST Early Release Science Program on Radiative Feedback from Massive Stars

Olivier Berne, Emilie Habart, Els Peeters et al
Publications of the Astronomical Society of the Pacific. Vol. 134 (1035)
Journal article

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