Research Projects

Early Stages of High-mass Star Formation

Magnetic Fields in High-mass Star Formation

Binary Formation, Accretion Disks, Infall Streamers

Origin of Stellar Masses, Core Mass Function

Initial Physical/ Chemical Conditions of High-mass Star Formation

ALMA-IMF is the first ALMA Large Program in high-mass star formation (PIs: Frederique Motte, Adam Gingsburg, Patricio Sanhueza, and Fabien Louvet). ALMA Large Programs are meant to address key scientific questions in the field. With ALMA-IMF, we aim to understand the origin of the initial mass function (IMF) by studing its precursor, the core mass function (CMF). Before ALMA-IMF, the majority of sistematic and statisiticly significant CMF studies focused in nearby, low-mass star-forming regions. Albeit such studies contribute to understand star formation in such regions, most stars in the Galaxy form in massive cluster along with high-mass stars. Regions forming high- and low-mass stars are the targets of ALMA-IMF. Beyond the CMF studies, ALMA-IMF observations allows the production of diverse science, including, e.g., outflows, chemistry, and filaments. People interested in this project can check the paper below of visit the official ALMA-IMF website for further details and data retrival.

Publications

ALMA-IMF. I. Investigating the origin of stellar masses: Introduction to the Large Program and first results Motte et al. (2022)

ALMA-IMF. II. Investigating the origin of stellar masses: Continuum images and data processing Ginsburg et al. (2022)

ALMA-IMF. III. Investigating the origin of stellar masses: top-heavy core mass function in the W43-MM2&MM3 mini-starburst Pouteau et al. (2022)

ALMA-IMF. IV. A comparative study of the main hot cores in W43-MM1: Detection, temperature, and molecular composition Brouillet et al. (2022)

ALMA-IMF. V. Prestellar and protostellar core populations in the W43 cloud complex Nony et al. (2023)

ALMA-IMF. VI. Investigating the origin of stellar masses: Core mass function evolution in the W43-MM2&MM3 mini-starburst Pouteau et al. (2023)

ALMA-IMF. VII. First release of the full spectral line cubes: Core kinematics traced by DCN J = (3−2) Cunningham et al. (2023)

ALMA-IMF. VIII. Combination of Interferometric Continuum Images with Single-dish Surveys and Structural Analysis of Six Protoclusters Díaz-González et al. (2023)

ALMA-IMF. IX. Catalog and Physical Properties of 315 SiO Outflow Candidates in 15 Massive Protoclusters Towner et al. (2024)

ALMA-IMF. X. The core population in the evolved W33-Main (G012.80) protocluster Armante et al. (2024)

ALMA-IMF. XI. The sample of hot core candidates: A rich population of young high-mass protostars unveiled by the emission of methyl formate Bonfand et al. (2024)

ALMA-IMF. XII. Point-process mapping of 15 massive protoclusters Dell'Ova et al. (2024)

ALMA-IMF XIII. N2H+ kinematic analysis of the intermediate protocluster G353.41 Álvarez-Gutiérrez et al. (2024)

ALMA-IMF. XIV. Free─Free Templates Derived from H41α and Ionized Gas Content in 15 Massive Protoclusters Galván-Madrid et al. (2024)

ALMA-IMF XV. Core mass function in the high-mass star formation regime Louvet et al. (2024)

ALMA-IMF. XVI. Mass-averaged temperature of cores and protostellar luminosities in the ALMA-IMF protoclusters Motte et al. (2025)

ALMA-IMF XVII. Census and lifetime of high-mass prestellar cores in 14 massive protoclusters Valeille-Manet et al. (2025)

ALMA-IMF. XVIII. The assembly of a star cluster: Dense N2H+ (1─0) kinematics in the massive G351.77 protocluster Sandoval-Garrido et al. (2025)

ALMA-IMF XIX. C18O (J = 2─1): Measurements of turbulence in 15 massive protoclusters Koley et al. (2025)

ALMA-IMF. XX. Core Fragmentation in the W51 High-mass Star-forming Region Yoo et al. (2025)

ALMA-IMF XXI.: N2H+ kinematics in the G012.80 protocluster: Evidence for filament rotation and evolution Salinas et al. (2025)