E. Moraux
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View article: Substellar Initial Mass Function of Trumpler 14
Substellar Initial Mass Function of Trumpler 14 Open
Young, massive stellar clusters offer a prime setting to explore brown dwarf (BD) formation under high densities and intense UV radiation. Trumpler 14 (Tr 14), a 1 Myr-old cluster located at a distance of 2.4 kpc, and particularly rich in …
View article: DAWN
DAWN Open
Context . The star formation process produces hierarchical clustered stellar distributions through gravoturbulent fragmentation of molecular clouds. Simulating stellar dynamics in such an environment is numerically challenging due to the s…
View article: ALMA-IMF
ALMA-IMF Open
Context. The ALMA-IMF Large Program imaged 15 massive protoclusters down to a resolution of ~2 kau scales, identifying about 10 3 star-forming cores. The mass and luminosity of these cores, which are fundamental physical characteristics, a…
View article: EWOCS-III: JWST observations of the supermassive star cluster Westerlund 1
EWOCS-III: JWST observations of the supermassive star cluster Westerlund 1 Open
The typically large distances, extinction, and crowding of Galactic supermassive star clusters have so far hampered the identification of their very low mass members, required to extend our understanding of star and planet formation, and e…
View article: EWOCS-III: JWST observations of the supermassive star cluster Westerlund 1
EWOCS-III: JWST observations of the supermassive star cluster Westerlund 1 Open
Context . The typically large distances, extinction, and crowding of Galactic supermassive star clusters (stellar clusters more massive than 10 4 M ⊙ ) have so far hampered the identification of their very low mass members, required to ext…
View article: Supplementary material of ALMA-IMF XVI (Motte et al. 2025)
Supplementary material of ALMA-IMF XVI (Motte et al. 2025) Open
Figure entitled "ALMA-IMF-XVI_FigureD3.png" displays the distribution of the mass-averaged dust temperature of prestellar cores located within luminosity peaks (orange histogram) and far away from them (green histogram), as indicated by th…
View article: A stochastic and analytical model of hierarchical fragmentation
A stochastic and analytical model of hierarchical fragmentation Open
Context . Molecular clouds are the most important incubators of young stars clustered in various stellar structures whose spatial extension can vary from a few AU to several thousand AU. Although the reality of these stellar systems has be…
View article: ALMA-IMF XV: The core mass function in the high-mass star-formation regime
ALMA-IMF XV: The core mass function in the high-mass star-formation regime Open
The stellar initial mass function (IMF) is critical to our understanding of star formation and the effects of young stars on their environment. On large scales, it enables us to use tracers such as UV or Halpha emission to estimate the sta…
View article: EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Westerlund 1 and 2 Open Clusters Survey
EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Westerlund 1 and 2 Open Clusters Survey Open
Context . With a mass exceeding several 10 4 M ⊙ and a rich and dense population of massive stars, supermassive young star clusters represent the most massive star-forming environment that is dominated by the feedback from massive stars an…
View article: The cosmic DANCe of Perseus
The cosmic DANCe of Perseus Open
Context. Star-forming regions are excellent benchmarks for testing and validating theories of star formation and stellar evolution. The Perseus star-forming region, being one of the youngest (< 10 Myr), closest (280−320 pc), and most studi…
View article: A graph-theory-based multi-scale analysis of hierarchical cascade in molecular clouds
A graph-theory-based multi-scale analysis of hierarchical cascade in molecular clouds Open
Context. The spatial properties of small star clusters suggest that they may originate from a fragmentation cascade starting from molecular cloud, of which there might be traces found at spatial scales up to a few tens of thousands of astr…
View article: ALMA-IMF
ALMA-IMF Open
Aims. The processes that determine the stellar initial mass function (IMF) and its origin are critical unsolved problems, with profound implications for many areas of astrophysics. The W43-MM2&MM3 mini-starburst ridge hosts a rich young pr…
View article: ALMA-IMF
ALMA-IMF Open
Aims. Thanks to the high angular resolution, sensitivity, image fidelity, and frequency coverage of ALMA, we aim to improve our understanding of star formation. One of the breakthroughs expected from ALMA, which is the basis of our Cycle 5…
View article: The spatial evolution of young massive clusters
The spatial evolution of young massive clusters Open
Context. With the third release of the high-precision optical-wavelength Gaia survey, we are in a better position than ever before to study young clusters. However, Gaia is limited in the optical down to G ∼ 21 mag, and therefore it is ess…
View article: ALMA-IMF
ALMA-IMF Open
We present the first data release of the ALMA-IMF Large Program, which covers the 12m-array continuum calibration and imaging. The ALMA-IMF Large Program is a survey of fifteen dense molecular cloud regions spanning a range of evolutionary…
View article: Hierarchy of clumps fragments : a den for the formation of local star-clusters using a graph theory-based approach
Hierarchy of clumps fragments : a den for the formation of local star-clusters using a graph theory-based approach Open
The spatial distribution of YSOs might give some clues on the fragmentation process of molecular clouds. Indeed, the small significant stellar structures (NESTs) discovered in Taurus (Joncour+2018) are interpreted as pristine imprints of s…
View article: The close connection between spatial stellar distribution and interstellar structures in star forming regions
The close connection between spatial stellar distribution and interstellar structures in star forming regions Open
Spatial distribution of young stellar objects (YSOs) in star forming regions (SFRs) may be used as key tracers of their birth sites and their dynamical evolution. Focusing on early stages of star formation, YSOs spatial distribution is exp…
View article: Exposing Star Formation through the spatial structure of young stellar objects
Exposing Star Formation through the spatial structure of young stellar objects Open
We construct a catalog of the smallest significant young stellar substructures, that we call NESTs, by systematically applying a robust clustering method to a sample of 39 star-forming regions (SFRs). These small and compact clumps of youn…
View article: Extreme adaptive optics astrometry of R136. Searching for high proper motion stars
Extreme adaptive optics astrometry of R136. Searching for high proper motion stars Open
We compared high-contrast near-infrared images of the core of R136 taken by VLT/SPHERE, in two epochs separated by 3.06 years. For the first time we monitored the dynamics of the detected sources in the core of R136 from a ground-based tel…
View article: Extreme adaptive optics astrometry of R136
Extreme adaptive optics astrometry of R136 Open
We compared high-contrast near-infrared images of the core of R136 taken by VLT/SPHERE, in two epochs separated by 3.06 years. For the first time we monitored the dynamics of the detected sources in the core of R136 from a ground-based tel…
View article: MAORY: A Multi-conjugate Adaptive Optics RelaY for ELT
MAORY: A Multi-conjugate Adaptive Optics RelaY for ELT Open
MAORY is the adaptive optics module for ELT providing two gravity invariant ports with the same optical quality for two different client instruments. It enable high angular resolution observations in the near infrared over a large field of…
View article: Miec: A Bayesian hierarchical model for the analysis of nearby young open clusters
Miec: A Bayesian hierarchical model for the analysis of nearby young open clusters Open
Context. The analysis of luminosity and mass distributions of young stellar clusters is essential to understanding the star-formation process. However, the gas and dust left over by this process extinct the light of the newborn stars and c…
View article: High-contrast and resolution near-infrared photometry of the core of R136
High-contrast and resolution near-infrared photometry of the core of R136 Open
We present the sharpest and deepest near-infrared photometric analysis of the core of R136, a newly formed massive star cluster at the centre of the 30 Doradus star-forming region in the Large Magellanic Cloud. We used the extreme adaptive…
View article: Testing the role of environmental effects on the initial mass function of low-mass stars
Testing the role of environmental effects on the initial mass function of low-mass stars Open
In the star-formation process, the vital impact of environmental factors such as feedback from massive stars and stellar density on the form of the initial mass function (IMF) at the low-mass end is yet to be understood. Hence a systematic…
View article: S2D2: Small-scale Significant substructure DBSCAN Detection
S2D2: Small-scale Significant substructure DBSCAN Detection Open
Context. The spatial and dynamical structure of star-forming regions can offer insights into stellar formation patterns. The amount of data from current and upcoming surveys calls for robust and objective procedures for detecting structure…
View article: S2D2: Small-scale Significant substructure DBSCAN Detection I. NESTs detection in 2D star-forming regions
S2D2: Small-scale Significant substructure DBSCAN Detection I. NESTs detection in 2D star-forming regions Open
The spatial and dynamical structure of star-forming regions can help provide insights on stellar formation patterns. The amount of data from current and upcoming surveys calls for robust and objective procedures to detect structure, so the…
View article: Statistical model for filamentary structures of molecular clouds -- The modified multiplicative random cascade model and its multifractal nature
Statistical model for filamentary structures of molecular clouds -- The modified multiplicative random cascade model and its multifractal nature Open
We propose a new statistical model that can reproduce the hierarchical nature of the ubiquitous filamentary structures of molecular clouds. This model is based on the multiplicative random cascade, which is designed to replicate the multif…
View article: Statistical model for filamentary structures of molecular clouds
Statistical model for filamentary structures of molecular clouds Open
We propose a new statistical model that can reproduce the hierarchical nature of the ubiquitous filamentary structures of molecular clouds. This model is based on the multiplicative random cascade, which is designed to replicate the multif…
View article: Report on Optimal Substructure Techniques for Stellar, Gas and Combined Samples
Report on Optimal Substructure Techniques for Stellar, Gas and Combined Samples Open
This document aims at reviewing the different types of clustering algorithms and substructures detection techniques in order to study the spatial and kinematic clustering of stars and detect the gas components in molecular clouds. It is th…
View article: IAU volume 15 issue 354 Cover and Front matter
IAU volume 15 issue 354 Cover and Front matter Open
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