806 citations · 2.3k across the 28 of their papers we have counts for
18 papers · 1 filter
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…
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…
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…
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…
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…
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…
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…
Molecular outflows towards O-type young stellar objects
A. Lopez-Sepulcre, C. Codella, R. Cesaroni +2
We have searched for massive molecular outflows in a sample of high-mass star forming regions, and we have characterised both the outflow properties and those of their associated m…