F. Fontani
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View article: Chemical evolution in high-mass star-forming regions
Chemical evolution in high-mass star-forming regions Open
Growing evidence shows that most stars in the Milky Way, including our Sun, are born in high-mass star-forming regions, but due to both observational and theoretical challenges, our understanding of their chemical evolution is much less cl…
View article: The GUAPOS project. VI: the chemical inventory of shocked gas
The GUAPOS project. VI: the chemical inventory of shocked gas Open
The study of the chemical composition of star-forming regions is key to understand the chemical ingredients available during the formation of planetary systems. Given that the chemical inventory on interstellar dust grains in the prestella…
View article: CO Depletion in Infrared Dark Clouds
CO Depletion in Infrared Dark Clouds Open
Infrared Dark Clouds (IRDCs) are cold, dense structures representative of the initial conditions of star formation. Many studies of IRDCs employ CO to investigate cloud dynamics. However, CO can be highly depleted from the gas phase in IRD…
View article: Low-velocity large-scale shocks in the infrared dark cloud G035.39-00.33: Bubble-driven cloud-cloud collisions
Low-velocity large-scale shocks in the infrared dark cloud G035.39-00.33: Bubble-driven cloud-cloud collisions Open
Low-velocity, large-scale shocks impacting on the interstellar medium have been suggested as efficient mechanisms that shape molecular clouds and trigger star formation within them. These shocks, both driven by galactic bubbles and/or clou…
View article: CHemical Evolution in MassIve star-forming COres (CHEMICO)
CHemical Evolution in MassIve star-forming COres (CHEMICO) Open
Context . Increasing evidence shows that most stars in the Milky Way, including the Sun, are born in star-forming regions that also contain high-mass stars. However, due to both observational and theoretical challenges, our understanding o…
View article: Shaping Galactic habitability: Impact of stellar migration and gas giants
Shaping Galactic habitability: Impact of stellar migration and gas giants Open
In exoplanet research, studies are increasingly focussed on identifying planets that similar in density and habitability potential to our planet, known as Earth analogs. As the number of known rocky exoplanets grows, parallel discussions h…
View article: FAUST
FAUST Open
Context . The (sub-)millimetre dust opacity spectral index ( β ) is a critical observable for constraining dust properties, such as the maximum grain size of an observed dust population. It has been widely measured at Galactic scales and d…
View article: FAUST
FAUST Open
Context. During the early stages of star formation, accretion processes such as infall from the envelope and molecular streamers and ejection of matter through winds and jets take place simultaneously and distribute the angular momentum of…
View article: Observations of non complex organic molecules in the gas phase of the interstellar medium
Observations of non complex organic molecules in the gas phase of the interstellar medium Open
The field of astrochemistry has seen major advances triggered by the completion of new powerful radio telescopes, with gains in sensitivity of receivers and in bandwidth. To date, about 330 molecular species are detected, in interstellar c…
View article: ALMAGAL
ALMAGAL Open
Context . The study of molecular line emission is crucial to unveil the kinematics and the physical conditions of gas in star-forming regions. We use data from the ALMAGAL survey, which provides an unprecedentedly large statistical sample …
View article: Understanding molecular ratios in the carbon- and oxygen-poor outer Milky Way with interpretable machine learning
Understanding molecular ratios in the carbon- and oxygen-poor outer Milky Way with interpretable machine learning Open
Context . The outer Milky Way has a lower metallicity than our solar neighbourhood, but many molecules are still detected in the region. Molecular line ratios can serve as probes to understand the chemistry and physics in these regions bet…
View article: ALMAGAL
ALMAGAL Open
Context . A large fraction of stars form in clusters containing high-mass stars, which subsequently influences the local and galaxy-wide environment. Aims . Fundamental questions about the physics responsible for fragmenting molecular pars…
View article: ALMAGAL
ALMAGAL Open
The physical mechanisms behind the fragmentation of high-mass dense clumps into compact star-forming cores and the properties of these cores are fundamental topics that are heavily investigated in current astrophysical research. The ALMAGA…
View article: ALMAGAL
ALMAGAL Open
Context. Stars form preferentially in clusters embedded inside massive molecular clouds, many of which contain high-mass stars. Thus, a comprehensive understanding of star formation requires a robust and statistically well-constrained char…
View article: FAUST
FAUST Open
Context . While protostellar outflows are important in terms of mass accretion and angular momentum transport in star formation processes, high-resolution observations of outflows in protobinary systems are still sparse. Aims . We aim to r…
View article: Evidence for Jet/Outflow Shocks Heating the Environment around the Class I Protostellar Source Elias 29: FAUST XXI
Evidence for Jet/Outflow Shocks Heating the Environment around the Class I Protostellar Source Elias 29: FAUST XXI Open
We have observed the late Class I protostellar source Elias 29 at a spatial resolution of 70 au with the Atacama Large Millimeter/submillimeter Array as part of the FAUST Large Program. We focus on the line emission of SO, while that of 34…
View article: Interaction between the supernova remnant W44 and the infrared dark cloud G034.77-00.55: Shock induced star formation
Interaction between the supernova remnant W44 and the infrared dark cloud G034.77-00.55: Shock induced star formation Open
Context . We have studied the dense gas morphology and kinematics towards the infrared dark cloud (IRDC) G034.77-00.55, shock-interacting with the SNR W44, to identify evidence of early-stage star formation induced by the shock. Aims . We …
View article: First detection of a deuterated molecule in a starburst environment within NGC 253
First detection of a deuterated molecule in a starburst environment within NGC 253 Open
Context. Deuterium was primarily created during the Big Bang nucleosynthesis. This fact, alongside its fractionation reactions resulting in enhanced abundances of deuterated molecules, means that deuterium abundances can be used to better …
View article: First detection of a deuterated molecule in a starburst environment within NGC 253
First detection of a deuterated molecule in a starburst environment within NGC 253 Open
Deuterium was primarily created during the Big Bang Nucleosynthesis (BBN). This fact, alongside its fractionation reactions resulting in enhanced abundances of deuterated molecules, means that these abundances can be used to better underst…
View article: Interaction between the Supernova Remnant W44 and the Infrared Dark Cloud G034.77-00.55: shock induced star formation?
Interaction between the Supernova Remnant W44 and the Infrared Dark Cloud G034.77-00.55: shock induced star formation? Open
How Supernova Remnant (SNR) shocks impact nearby molecular clouds is still poorly observationally constrained. It is unclear if SNRs can positively or negatively affect clouds star formation potential. We have studied the dense gas morphol…
View article: CHEMOUT: CHEMical complexity in star-forming regions of the OUTer Galaxy
CHEMOUT: CHEMical complexity in star-forming regions of the OUTer Galaxy Open
Context . Single-dish observations suggest that the abundances of organic species in star-forming regions of the outer Galaxy, which are characterised by sub-solar metallicities, are comparable to those found in the local Galaxy. Aims . To…
View article: CHEMOUT: CHEMical complexity in star-forming regions of the OUTer Galaxy. IV. ALMA observations of organic species at Galactocentric radius ~23 kpc
CHEMOUT: CHEMical complexity in star-forming regions of the OUTer Galaxy. IV. ALMA observations of organic species at Galactocentric radius ~23 kpc Open
Single-dish observations suggest that the abundances of organic species in star-forming regions of the outer Galaxy, characterised by sub-Solar metallicities, are comparable to those found in the local Galaxy. To understand this counter-in…
View article: Dynamical accretion flows
Dynamical accretion flows Open
Context. Investigating the flow of material along filamentary structures towards the central core can help provide insights into high-mass star formation and evolution. Aims. Our main motivation is to answer the question of what the proper…
View article: Observations of phosphorus-bearing molecules in the interstellar medium
Observations of phosphorus-bearing molecules in the interstellar medium Open
The chemistry of phosphorus ( 31 P) in space is particularly significant due to the key role it plays in biochemistry on Earth. Utilising radio and infrared spectroscopic observations, several key phosphorus-containing molecules have been …
View article: Observations of phosphorus-bearing molecules in the interstellar medium
Observations of phosphorus-bearing molecules in the interstellar medium Open
The chemistry of phosphorus (31P) in space is particularly significant due to the key role it plays in biochemistry on Earth. Utilising radio and infrared spectroscopic observations, several key phosphorus-containing molecules have been de…
View article: FAUST
FAUST Open
Context. Recent observations suggest that planet formation starts early, in protostellar disks of ≤10 5 yr, which are characterized by strong interactions with the environment, such as through accretion streamers and molecular outflows. Ai…
View article: Polarized Light from Massive Protoclusters (POLIMAP). I. Dissecting the Role of Magnetic Fields in the Massive Infrared Dark Cloud G28.37+0.07
Polarized Light from Massive Protoclusters (POLIMAP). I. Dissecting the Role of Magnetic Fields in the Massive Infrared Dark Cloud G28.37+0.07 Open
Magnetic fields may play a crucial role in setting the initial conditions of massive star and star cluster formation. To investigate this, we report SOFIA-HAWC+ 214 μ m observations of polarized thermal dust emission and high-resolution GB…
View article: Multiple chemical tracers finally unveil the intricate NGC 1333 IRAS 4A outflow system. FAUST XVI
Multiple chemical tracers finally unveil the intricate NGC 1333 IRAS 4A outflow system. FAUST XVI Open
The exploration of outflows in protobinary systems presents a challenging yet crucial endeavour, offering valuable insights into the dynamic interplay between protostars and their evolution. In this study, we examine the morphology and dyn…
View article: Multiple chemical tracers finally unveil the intricate NGC\,1333 IRAS\,4A outflow system. FAUST XVI
Multiple chemical tracers finally unveil the intricate NGC\,1333 IRAS\,4A outflow system. FAUST XVI Open
The exploration of outflows in protobinary systems presents a challenging yet crucial endeavour, offering valuable insights into the dynamic interplay between protostars and their evolution. In this study, we examine the morphology and dyn…
View article: FAUST XIII. Dusty cavity and molecular shock driven by IRS7B in the Corona Australis cluster
FAUST XIII. Dusty cavity and molecular shock driven by IRS7B in the Corona Australis cluster Open
The origin of the chemical diversity observed around low-mass protostars probably resides in the earliest history of these systems. We aim to investigate the impact of protostellar feedback on the chemistry and grain growth in the circumst…