806 citations · 2.3k across the 28 of their papers we have counts for
28 papers
Filamentary accretion flows in high-mass star-forming clouds
J. -E. Schneider, H. Beuther, C. Gieser +11
We quantify the gas flows from a scale of up to several parsecs down to the sub-parsec scale along filamentary structures in the three high-mass star-forming regions G75.78, IRAS21…
The GUAPOS project. VI: the chemical inventory of shocked gas
Á. López-Gallifa, V. M. Rivilla, M. T. Beltrán +8
The study of the chemical composition of star-forming regions is key to understanding the chemical ingredients available during the formation of planetary systems. Because the chem…
The GUAPOS project: G31.41+0.31 Unbiased ALMA sPectral Observational Survey -- I. Isomers of CHO
C. Mininni, M. T. Beltrán, V. M. Rivilla +10
Understanding the degree of chemical complexity that can be reached in star-forming regions, together with the identification of precursors of the building blocks of life in the in…
ALMA and ROSINA detections of phosphorus-bearing molecules: the interstellar thread between star-forming regions and comets
V. M. Rivilla, M. N. Drozdovskaya, K. Altwegg +11
To understand how Phosphorus-bearing molecules are formed in star-forming regions, we have analysed ALMA observations of PN and PO towards the massive star-forming region AFGL 5142…
First ALMA maps of HCO, an important precursor of complex organic molecules, towards IRAS 16293-2422
V. M. Rivilla, M. T. Beltrán, A. Vasyunin +4
The formyl radical HCO has been proposed as the basic precursor of many complex organic molecules such as methanol (CHOH) or glycolaldehyde (CHOHCHO). Using ALMA, we have m…
The first detections of the key prebiotic molecule PO in star-forming regions
Víctor M. Rivilla, Francesco Fontani, Maite Beltrán +4
Phosphorus is a crucial element in prebiotic chemistry, especially the PO bond, which is key for the formation of the backbone of the deoxyribonucleic acid. So far, PO had only…
On the chemical ladder of esters. Detection and formation of ethyl formate in the W51 e2 hot molecular core
V. M. Rivilla, M. T. Beltrán, J. Martín-Pintado +3
The detection of organic molecules with increasing complexity and potential biological relevance is opening the possibility to understand the formation of the building blocks of li…
Weak and Compact Radio Emission in Early High-Mass Star Forming Regions: I. VLA Observations
V. Rosero, P. Hofner, M. Claussen +9
We present a high sensitivity radio continuum survey at 6 and 1.3cm using the Karl G. Jansky Very Large Array towards a sample of 58 high-mass star forming regions. Our sample…
Magnetically-regulated fragmentation of a massive, dense and turbulent clump
F. Fontani, B. Commerçon, A. Giannetti +11
Massive stars, multiple stellar systems and clusters are born from the gravitational collapse of massive dense gaseous clumps, and the way these systems form strongly depends on ho…
The formation of ethylene glycol and other complex organic molecules in star-forming regions
V. M. Rivilla, M. T. Beltrán, R. Cesaroni +3
We study the molecular abundance and spatial distribution of the simplest sugar alcohol, ethylene glycol (EG), the simplest sugar glycoladehyde (GA), and other chemically related c…
Binary system and jet precession and expansion in G35.20-0.74N
M. T. Beltrán, R. Cesaroni, L. Moscadelli +3
Context. ALMA observations of the high-mass star-forming region G35.20-0.74N have revealed the presence of a Keplerian disk in core B rotating about a massive object of 18 Msun, as…
First detections of the key prebiotic molecule PO in star-forming regions
V. M. Rivilla, F. Fontani, M. T. Beltrán +4
Phosphorus is a crucial element in biochemistry, especially the P-O bond, which is key for the formation of the backbone of the deoxyribonucleic acid. So far, PO has only been dete…
Italian Science Case for ALMA Band 2+3
M. T. Beltran, E. Bianchi, J. Brand +18
The Premiale Project "Science and Technology in Italy for the upgraded ALMA Observatory - iALMA" has the goal of strengthening the scientific, technological and industrial Italian…
A sub-arcsecond study of the hot molecular core in G023.01-00.41
A. Sanna, R. Cesaroni, L. Moscadelli +5
(Abridged) METHODS: We performed SMA observations at 1.3 mm with both the most extended and compact array configurations, providing sub-arcsecond and high sensitivity maps of vario…
Evolution and excitation conditions of outflows in high-mass star-forming regions
A. Sanchez-Monge, A. Lopez-Sepulcre, R. Cesaroni +5
Theoretical models suggest that massive stars form via disk-mediated accretion, with bipolar outflows playing a fundamental role. A recent study toward massive molecular outflows h…
A candidate circumbinary Keplerian disk in G35.20-0.74 N: A study with ALMA
A. Sanchez-Monge, R. Cesaroni, M. T. Beltran +13
We report on ALMA observations of continuum and molecular line emission with 0.4" resolution towards the high-mass star forming region G35.20-0.74 N. Two dense cores are detected i…
SiO collimated outflows driven by high-mass YSOs in G24.78+0.08
C. Codella, M. T. Beltran, R. Cesaroni +4
We imaged the molecular outflows towards the cluster of high-mass young stellar objects G24.78+0.08 at high-angular resolution using SiO emission, which is considered the classical…
Different evolutionary stages in massive star formation. Centimeter continuum and H2O maser emission with ATCA
A. Sanchez-Monge, M. T. Beltran, R. Cesaroni +5
We present ATCA observations of the H2O maser line and radio continuum at 18.0GHz and 22.8GHz, toward a sample of 192 massive star forming regions containing several clumps already…
High CO depletion in southern infrared-dark clouds
F. Fontani, A. Giannetti, M. T. Beltran +5
Infrared-dark high-mass clumps are among the most promising objects to study the initial conditions of the formation process of high-mass stars and rich stellar clusters. In this w…
Dissecting a hot molecular core: The case of G31.41+0.31
R. Cesaroni, M. T. Beltrán, Q. Zhang +2
We made a detailed observational analysis of a well known hot molecular core lying in the high-mass star-forming region G31.41+0.31. This core is believed to contain deeply embedde…
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…
SiO outflows in high-mass star forming regions: A potential chemical clock?
A. López-Sepulcre, C. M. Walmsley, R. Cesaroni +7
Some theoretical models propose that O-B stars form via accretion, in a similar fashion to low-mass stars. Jet-driven molecular outflows play an important role in this scenario, an…
Infall, outflow, and rotation in the G19.61-0.23 hot molecular core
R. S. Furuya, R. Cesaroni, H. Shinnaga
Aims: The main goal of this study is to perform a sub-arcsecond resolution analysis of the high-mass star formation region G19.61-0.23, both in the continuum and molecular line emi…
Clouds, filaments and protostars: the Herschel Hi-GAL Milky Way
S. Molinari, B. Swinyard, J. Bally +121
We present the first results from the science demonstration phase for the Hi-GAL survey, the Herschel key-project that will map the inner Galactic Plane of the Milky Way in 5 bands…