362 citations · 5.3k across the 126 of their papers we have counts for
24 papers · 1 filter
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.…
Protostellar Outflows at the EarliesT Stages (POETS). IX. Magnetohydrodynamic disk winds traced by SO and SO in luminous protostars
L. Moscadelli, H. Beuther, A. Sanna +13
We investigate two massive young stellar objects (YSOs), IRAS21078+5211 and G035.02+0.35, where evidence for magnetohydrodynamic (MHD) disk winds (DWs) has been obtained at scales…
The SOUL view of IRAS20126+4104. Kinematics and variability of the H jet from a massive protostar
F. Massi, A. Caratti o Garatti, R. Cesaroni +20
We exploit the increased sensitivity of the recently installed AO SOUL at the LBT to obtain new high-spatial-resolution NIR images of the massive young stellar object IRAS20126+410…
NIR jets from a clustered region of massive star formation: Morphology and composition in the IRAS 18264-1152 region
A. R. Costa Silva, R. Fedriani, J. C. Tan +6
Massive stars form deeply embedded in their parental clouds, making it challenging to directly observe these stars and their immediate environments. It is known that accretion and…
Chemical complexity in high-mass star formation: An observational and modeling case study of the AFGL 2591 VLA 3 hot core
C. Gieser, D. Semenov, H. Beuther +30
We present a detailed observational and modeling study of the hot core VLA 3 in the high-mass star-forming region AFGL 2591, which is a target region of the NOrthern Extended Milli…
Fragmentation, rotation and outflows in the high-mass star-forming region IRAS 23033+5951. A case study of the IRAM NOEMA large program CORE
F. Bosco, H. Beuther, A. Ahmadi +23
The formation process of high-mass stars (>8M) is poorly constrained, particularly, the effects of clump fragmentation creating multiple systems and the mechanism of mass a…
IRAS23385+6053: An embedded massive cluster in the making
R. Cesaroni, H. Beuther, A. Ahmadi +26
This study is part of the project ``CORE'', an IRAM/NOEMA large program consisting of observations of the millimeter continuum and molecular line emission towards 20 selected high-…
First interferometric study of enhanced N-fractionation in NH: the high-mass star-forming region IRAS 05358+3543
L. Colzi, F. Fontani, P. Caselli +3
Nitrogen (N) fractionation is used as a tool to search for a link between the chemical history of the Solar System and star-forming regions. A large variation of N/N…
Water and interstellar complex organics associated with the HH 212 protostellar disc - On disc atmospheres, disc winds, and accretion shocks
C. Codella, E. Bianchi, B. Tabone +14
The HH 212 protostellar system, in Orion B, has been mapped thanks to ALMA-Band 7 Cycle 1 and Cycle 4 observations of dueterated water (HDO) and acetaldehyde (CHCHO) emission w…
Discovery of a sub-Keplerian disk with jet around a 20Msun young star. ALMA observations of G023.01-00.41
A. Sanna, A. Koelligan, L. Moscadelli +9
It is well established that Solar-mass stars gain mass via disk accretion, until the mass reservoir of the disk is exhausted and dispersed, or condenses into planetesimals. Accreti…
Deuterated methanol on Solar System scale around the HH212 protostar
E. Bianchi, C. Codella, C. Ceccarelli +13
Context: Methanol is thought to be mainly formed during the prestellar phase and its deuterated form keeps memory of the conditions at that epoch. Thanks to the unique combination…
ATLASGAL -- A Galaxy-wide sample of dense filamentary structures
Guang-Xing Li, J. S. Urquhart, S. Leurini +4
[Abridged] Aims. We study the properties of filamentary structures from the ATLASGAL survey. Methods. We use the DisPerSE algorithm to identify spatially coherent structures locate…
Observations and modelling of CO and [CI] in disks. First detections of [CI] and constraints on the carbon abundance
M. Kama, S. Bruderer, M. Carney +23
The gas-solid budget of carbon in protoplanetary disks is related to the composition of the cores and atmospheres of the planets forming in them. The key gas-phase carbon carriers…
Water and acetaldehyde in HH212: The first hot corino in Orion
C. Codella, C. Ceccarelli, S. Cabrit +7
Aims: Using the unprecedented combination of high resolution and sensitivity offered by ALMA, we aim to investigate whether and how hot corinos, circumstellar disks, and ejected ga…
The ATLASGAL survey: distribution of cold dust in the Galactic plane. Combination with Planck data
T. Csengeri, A. Weiss, F. Wyrowski +9
Sensitive ground-based submillimeter surveys, such as ATLASGAL, provide a global view on the distribution of cold dense gas in the Galactic plane. Here we use the 353 GHz maps from…
Outflow forces in intermediate mass star formation
T. A. van Kempen, M. R. Hogerheijde, E. F. van Dishoeck +22
Intermediate mass protostarsprovide a bridge between theories of low- and high-mass star formation. Emerging molecular outflows can be used to determine the influence of fragmentat…
APEX-CHAMP+ high-J CO observations of low-mass young stellar objects: IV. Mechanical and radiative feedback
Umut A. Yıldız, Lars E. Kristensen, Ewine F. van Dishoeck +14
During the embedded stage of star formation, bipolar molecular outflows and UV radiation from the protostar are important feedback processes. Our aim is to quantify the feedback, m…
The SiO outflow from IRAS 17233-3603 at high resolution
P. D. Klaassen, K. G. Johnston, S. Leurini +1
Context: Jets and outflows are key ingredients in the formation of stars across the mass spectrum. In clustered regions, understanding powering sources and outflow components poses…
The ALMA view of the protostellar system HH212 - The wind, the cavity, and the disk
C. Codella, S. Cabrit, F. Gueth +8
Context: Because it is viewed simply edge-on, the HH212 protostellar system is an ideal laboratory for studying the interplay of infall, outflow, and rotation in the earliest stage…
On the kinematics of massive star forming regions: the case of IRAS 17233-3606
S. Leurini, C. Codella, L. Zapata +3
Direct observations of accretion disks around high-mass young stellar objects would help to discriminate between different models of formation of massive stars. However, given the…
Deuteration as an evolutionary tracer in massive-star formation
F. Fontani, Aina Palau, P. Caselli +7
Theory predicts, and observations confirm, that the column density ratio of a molecule containing D to its counterpart containing H can be used as an evolutionary tracer in the low…
A study of three southern high-mass star-forming regions
C. Dedes, S. Leurini, F. Wyrowski +4
Based on color-selected IRAS point sources, we have started to conduct a survey of 47 high-mass star-forming regions in the southern hemisphere in 870um dust continuum and molecula…
Extremely high velocity gas from the massive YSOs in IRAS 17233-3606
S. Leurini, C. Codella, L. A. Zapata +6
Molecular outflows from high-mass young stellar objects provide an excellent way to study the star formation process, and investigate if they are scaled-up versions of their low-ma…
On the metallicity gradient of the Galactic disk
S. Pedicelli, G. Bono, B. Lemasle +15
Aims: The iron abundance gradient in the Galactic stellar disk provides fundamental constraints on the chemical evolution of this important Galaxy component. However the spread aro…