109 citations · 769 across the 23 of their papers we have counts for
23 papers
Evidence for a bloated massive protostar in IRAS20126+4104
Riccardo Cesaroni
Variability is a well known phenomenon in low-mass young stellar objects, but in recent years the monitoring of methanol masers and infrared continuum emission has permitted the de…
The GUAPOS project -- VII: Physical structure and molecular environment of the G31.41+0.31 HII region
R. Cesaroni, M. T. Beltrán, V. M. Rivilla +6
Ionised regions around OB-type stars are formed at an early stage of their evolution and are important to investigate the formation process of these objects. However, so far only f…
Diverse stages of star formation in the IRAS 18162-2048 region. Emergence of UV Feedback
R. Fedriani, G. Anglada, A. Caratti o Garatti +15
Methods: We obtained adaptive optics-assisted integral field spectroscopy in the near-infrared (IR) band () with VLT/SINFONI, complemented by VLA X and C…
A multi-scale view of the magnetic field morphology in the hot molecular core G31.41+0.31
C. Y. Law, M. T. Beltrán, R. S. Furuya +9
Multiscale studies of the morphology and strength of the magnetic field are crucial to properly unveil its role and relative importance in high-mass star and cluster formation. G31…
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…
Protostellar Outflows at the EarliesT Stages (POETS) VI. Evidence of disk-wind in G11.92-0.61 MM1
O. S. Bayandina, L. Moscadelli, R. Cesaroni +3
Magnetohydrodynamic disk-winds play a key role in the formation of massive stars by providing the fine-tuning between accretion and ejection, where excess angular momentum is redir…
Dissecting the disk and the jet of a massive (proto)star. An ALMA view of IRAS20126+4104
R. Cesaroni, D. Galli, M. Padovani +2
We investigate one of the best examples of disk+jet systems around an early B-type (proto)star, IRAS20126+4104. This object is an ideal target for resolution of its disk and the de…
Self-similarity of the magnetic field at different scales: the case of G31.41+0.31
M. T. Beltrán, M. Padovani, D. Galli +11
Context. Dust polarization observations of the massive protocluster G31.41+0.31 carried out at ~1'' (~3750 au) resolution with the SMA at 870 microm have revealed one of the cleare…
The GUAPOS project. V: The chemical ingredients of a massive stellar protocluster in the making
Á. López-Gallifa, V. M. Rivilla, M. T. Beltrán +9
Most stars, including the Sun, are born in rich stellar clusters containing massive stars. Therefore, the study of the chemical reservoir of massive star-forming regions is crucial…
Radio outburst from a massive (proto)star. III. Unveiling the bipolarity of the radio jet from S255IR NIRS3
R. Cesaroni, L. Moscadelli, A. Caratti o Garatti +6
We report new Very Large Array high-resolution observations of the radio jet from the outbursting high-mass star S255IR~NIRS3. The images at 6, 10, and 22.2 GHz confirm the existen…
Radio outburst from a massive (proto)star. II. A portrait in space and time of the expanding radio jet from S255 NIRS3
R. Cesaroni, L. Moscadelli, A. Caratti o Garatti +6
Observations indicate that the accretion process in star formation may occur through accretion outbursts. This phenomenon has also now been detected in a few young massive (proto)s…
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:…
Substructures in the Keplerian disc around the O-type (proto)star G17.64+0.16
L. T. Maud, R. Cesaroni, M. S. N. Kumar +20
We present the highest angular resolution (20x15mas - 44x33au) Atacama Large Millimeter/sub-millimeter Array (ALMA) observations currently possible of the proto-O-star G17.64+0.16…
Core fragmentation and Toomre stability analysis of W3(H2O): A case study of the IRAM NOEMA large program CORE
A. Ahmadi, H. Beuther, J. C. Mottram +30
The fragmentation mode of high-mass molecular clumps and the properties of the central rotating structures surrounding the most luminous objects have yet to be comprehensively char…
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…
Radio outburst from a massive (proto)star. When accretion turns into ejection
R. Cesaroni, L. Moscadelli, R. Neri +6
Context. Recent observations of the massive young stellar object S255 NIRS 3 have revealed a large increase in both methanol maser flux density and IR emission, which have been int…
STATCONT: A statistical continuum level determination method for line-rich sources
A. Sanchez-Monge, P. Schilke, A. Ginsburg +2
STATCONT is a python-based tool designed to determine the continuum emission level in spectral data, in particular for sources with a line-rich spectrum. The tool inspects the inte…
The physical and chemical structure of Sagittarius B2. II. Continuum millimeter emission of SgrB2(M) and SgrB2(N) with ALMA
A. Sanchez-Monge, P. Schilke, A. Schmiedeke +8
The high-mass star forming sites SgrB2(M) and SgrB2(N) have been the target of numerous studies, revealing e.g. a rich chemistry. We want to characterize their physical and chemica…
Momentum-driven outflow emission from an O-type YSO: Comparing the radio jet with the molecular outflow
A. Sanna, L. Moscadelli, R. Cesaroni +3
Aims: We want to study the physical properties of the ionized jet emission in the vicinity of an O-type young stellar object (YSO), and estimate how efficient is the transfer of en…
A study on subarcsecond scales of the ammonia and continuum emission toward the G16.59-0.05 high-mass star-forming region
L. Moscadelli, R. Cesaroni, Á. Sánchez-Monge +4
We wish to investigate the structure, velocity field, and stellar content of the G16.59-0.05 high-mass star-forming region, where previous studies have established the presence of…
Methanol and water masers in IRAS 20126+4104: The distance, the disk, and the jet
L. Moscadelli, R. Cesaroni, M. J. Rioja +2
IRAS 20126+4104 is one of the best candidates for a high-mass (proto)star surrounded by an accretion disk. Such a fact may be used to set constraints on theories of high-mass star…
VLBI study of maser kinematics in high-mass SFRs. II. G23.01-0.41
A. Sanna, L. Moscadelli, R. Cesaroni +3
The present paper focuses on the high-mass star-forming region G23.01-0.41. Methods: Using the VLBA and the EVN arrays, we conducted phase-referenced observations of the three most…
A highly-collimated SiO jet in the HH212 protostellar outflow
C. Codella, S. Cabrit, F. Gueth +4
We mapped the HH212 Class 0 outflow in SiO(2--1, 5--4) and continuum using the PdBI in its extended configurations. The unprecedented angular resolution (down to 0.34") allows accu…