87 citations · 1.1k across the 41 of their papers we have counts for
41 papers
The CepA disk-outflow system at <=0.2'' or <=100au resolution
H. Beuther, C. Gieser, V. Aberham +21
Context: Although there has been significant progress, the physical properties and potential fragmentation of accretion disks around high-mass protostars remain poorly constrained.…
The converging gas flow around the infrared dark cloud G28.3
H. Beuther, C. Gieser, H. Linz +7
Aims: The G28.37+0.07 star-forming region is a prototypical infrared dark cloud (IRDC) located at the interface of a converging gas flow. This study characterizes the properties of…
ALMAGAL V. Relations between the core populations and the parent clump physical properties
D. Elia, A. Coletta, S. Molinari +54
Context. The fragmentation of massive molecular clumps into smaller, potentially star-forming cores plays a key role in the processes of high-mass star formation. The ALMAGAL proje…
ALMAGAL VII. Cataloging Hierarchical Mass Structure from Cores to Clumps across the Galactic Disk
Jennifer Wallace, Taevis Kolz, Cara Battersby +42
Investigating the multi-scale fragmentation of dense clumps into compact cores is essential for understanding the processes that govern the initial distribution of mass in stellar…
ALMAGAL IV. Morphological comparison of molecular and thermal dust emission using the histogram of oriented gradients (HOG) method
C. Mininni, S. Molinari, J. D. Soler +46
The study of molecular line emission is crucial to unveil the kinematics and the physical conditions of gas in star-forming regions. Our aim is to quantify the reliability of using…
ALMAGAL III. Compact source catalog: Fragmentation statistics and physical evolution of the core population
A. Coletta, S. Molinari, E. Schisano +49
The mechanisms behind the fragmentation of high-mass dense clumps into compact star-forming cores are fundamental topics in current astrophysical research. The ALMAGAL survey provi…
ALMAGAL II. The ALMA evolutionary study of high-mass protocluster formation in the Galaxy. ALMA data processing and pipeline
Á. Sánchez-Monge, C. L. Brogan, T. R. Hunter +53
The ALMAGAL Large Program has observed 1017 high-mass star-forming regions distributed throughout the Galaxy, sampling different evolutionary stages and environmental conditions. I…
ALMAGAL I. The ALMA evolutionary study of high-mass protocluster formation in the Galaxy. Presentation of the survey and early results
S. Molinari, P. Schilke, C. Battersby +73
Fundamental questions about the physics responsible for fragmenting molecular parsec-scale clumps into cores of ~1000 au are still open, that only a statistically significant inves…
Dynamical Accretion Flows -- ALMAGAL: Flows along filamentary structures in high-mass star-forming clusters
M. R. A. Wells, H. Beuther, S. Molinari +47
We use data from the ALMA Evolutionary Study of High Mass Protocluster Formation in the Galaxy (ALMAGAL) survey to study 100 ALMAGAL regions at 1 arsecond resolution located…
The accretion burst of the massive young stellar object G323.46 -0.08
V. Wolf, B. Stecklum, A. Caratti o Garatti +10
Accretion bursts from low-mass young stellar objects (YSOs) are known for many decades. In recent years, the first accretion bursts of massive YSOs (MYSOs) have been observed. Thes…
Density distributions, magnetic field structures and fragmentation in high-mass star formation
H. Beuther, C. Gieser, J. D. Soler +19
Methods: Observing the large pc-scale Stokes I mm dust continuum emission with the IRAM 30m telescope and the intermediate-scale (<0.1pc) polarized submm dust emission with the Sub…
Kinematics and stability of high-mass protostellar disk candidates at sub-arcsecond resolution -- Insights from the IRAM NOEMA large program CORE
Aida Ahmadi, H. Beuther, F. Bosco +28
The fragmentation mode of high-mass molecular clumps and the accretion processes that form the most massive stars () are still not well understood. To this end,…
Physical and chemical complexity in high-mass star-forming regions with ALMA. I. Overview and evolutionary trends of physical properties
Caroline Gieser, Henrik Beuther, Dmitry Semenov +3
In this study, we investigate how physical properties, such as the density and temperature profiles, evolve on core scales through the evolutionary sequence during high-mass star f…
N-bearing complex organics toward high-mass protostars: Constant ratios pointing to formation in similar pre-stellar conditions across a large mass range
P. Nazari, J. D. Meijerhof, M. L. van Gelder +10
No statistical study of COMs toward a large sample of high-mass protostars with ALMA has been carried out so far. We aim to study six N-bearing species: CHCN, HNCO, NHCHO,…
Methanol deuteration in high-mass protostars
M. L. van Gelder, J. Jaspers, P. Nazari +6
The deuteration of molecules forming in the ices such as methanol (CHOH) is sensitive to the physical conditions during their formation in dense cold clouds and can be probed t…
Importance of source structure on complex organics emission. I. Observations of CHOH from low-mass to high-mass protostars
M. L. van Gelder, P. Nazari, B. Tabone +9
Complex organic molecules (COMs) are often observed toward embedded Class 0 and I protostars. However, not all Class 0 and I protostars exhibit COMs emission. In this work, variati…
The prebiotic molecular inventory of Serpens SMM1: II. The building blocks of peptide chains
Niels F. W. Ligterink, Aida Ahmadi, Bijaya. Luitel +7
This work aims to constrain the abundances of interstellar amides, by searching for this group of prebiotic molecules in the intermediate-mass protostar Serpens SMM1-a. ALMA observ…
The sharp ALMA view of infall and outflow in the massive protocluster G31.41+0.31
M. T. Beltrán, V. M. Rivilla, R. Cesaroni +15
Context. To better understand the formation of high-mass stars, it is fundamental to investigate how matter accretes onto young massive stars, how it is ejected, and how all this d…
Disk fragmentation in high-mass star formation. High-resolution observations towards AFGL 2591-VLA 3
S. Suri, H. Beuther, C. Gieser +29
Increasing evidence suggests that, similar to their low-mass counterparts, high-mass stars form through a disk-mediated accretion process. At the same time, formation of high-mass…
Fragmentation and kinematics in high-mass star formation: CORE-extension targeting two very young high-mass star-forming regions
H. Beuther, C. Gieser, S. Suri +24
Context: The formation of high-mass star-forming regions from their parental gas cloud and the subsequent fragmentation processes lie at the heart of star formation research. Aims:…
Fragmentation in the massive G31.41+0.31 protocluster
M. T. Beltrán, V. M. Rivilla, R. Cesaroni +18
Context. ALMA observations at 1.4 mm and 0.2'' (750au) angular resolution of the Main core in the high-mass star forming region G31.41+0.31 have revealed a puzzling scenario: on th…
The physical and chemical structure of high-mass star-forming regions. Unraveling chemical complexity with the NOEMA large program "CORE"
C. Gieser, H. Beuther, D. Semenov +30
We use sub-arcsecond resolution (0.4) observations with NOEMA at 1.37 mm to study the dust emission and molecular gas of 18 high-mass star-forming regions. We combine the…
Multi-scale view of star formation in IRAS 21078+5211: From clump fragmentation to disk wind
L. Moscadelli, H. Beuther, A. Ahmadi +23
In the massive star-forming region IRAS 21078+5211, a highly fragmented cluster (0.1~pc in size) of molecular cores is observed, located at the density peak of an elongated (1~pc i…
Gravity and rotation drag the magnetic field in high-mass star formation
H. Beuther, J. D. Soler, H. Linz +8
The formation of hot stars out of the cold interstellar medium lies at the heart of astrophysical research. Understanding the importance of magnetic fields during star formation re…