68 citations · 460 across the 30 of their papers we have counts for
30 papers
The ALMA Survey of 70 μm Dark High-mass Clumps in Early Stages (ASHES). XIII. Core Mass Function, Lifetime, and Growth of Prestellar Cores
Kaho Morii, Patricio Sanhueza, Qizhou Zhang +10
The core mass function (CMF) of prestellar cores is essential for understanding the initial conditions of star and cluster formation. However, the universality of the CMF and its r…
Dense Molecular Ring-like structure in gaseous CO depletion region G34.74-0.12
Shuting Lin, Siyi Feng, Fengwei Xu +14
We report the discovery of a dense molecular ring-like structure in a dense (10 cm), cold (pc-scale CO depletion at a factor of 5), and young (10 year) star-forming…
Cosmic-ray ionisation rate in low-mass cores: the role of the environment
E. Redaelli, S. Bovino, G. Sabatini +6
Context: Cosmic rays drive several key processes for the chemistry and dynamical evolution of star-forming regions. Their effect is quantified mainly by means of the cosmic-ray ion…
The ALMA Survey of 70 m Dark High-mass Clumps in Early Stages (ASHES). XII. Unanchored Forked Stream in the Propagating Path of a Protostellar Outflow
Shuting Lin, Siyi Feng, Patricio Sanhueza +14
Outflows are key indicators of ongoing star formation. We report the discovery of an unanchored forked stream within the propagating path of an extremely young protostellar outflow…
Impact of cosmic-ray propagation on the chemistry and ionisation fraction of dark clouds
G. Latrille, A. Lupi, S. Bovino +3
A proper modelling of the cosmic-ray ionisation rate within gas clouds is crucial to describe their chemical evolution accurately. However, this modelling is computationally demand…
Gas infall via accretion disk feeding Cepheus A HW2
A. Sanna, A. Oliva, L. Moscadelli +10
The star-forming region Cepheus A hosts a very young star, called HW2, that is the second closest to us growing a dozen times more massive than our Sun. The circumstellar environme…
Time evolution of o-HD, ND, and NH during the high-mass star formation process
G. Sabatini, S. Bovino, E. Redaelli +5
Deuterium fractionation is a well-established evolutionary tracer in low-mass star formation, but its applicability to the high-mass regime remains an open question. The abundances…
Parsec-scale cosmic-ray ionisation rate in Orion
A. Socci, G. Sabatini, M. Padovani +2
Cosmic rays regulate the dynamics and the chemical processes in the densest and coldest regions of the ISM. Still, the determination of the cosmic-ray ionisation rate of H (${ζ…
FAUST XI: Enhancement of the complex organic material in the shocked matter surrounding the [BHB2007] 11 protobinary system
C. Vastel, T. Sakai, C. Ceccarelli +20
iCOMs are species commonly found in the interstellar medium. They are believed to be crucial seed species for the build-up of chemical complexity in star forming regions as well as…
The ALMA Survey of 70 m Dark High-mass Clumps in Early Stages (ASHES). XI. Statistical Study of Early Fragmentation
Kaho Morii, Patricio Sanhueza, Qizhou Zhang +9
Fragmentation during the early stages of high-mass star formation is crucial for understanding the formation of high-mass clusters. We investigated fragmentation within thirty-nine…
Testing analytical methods to derive the cosmic-ray ionisation rate in cold regions via synthetic observations
E. Redaelli, S. Bovino, A. Lupi +4
Cosmic rays (CRs) heavily impact the chemistry and physics of cold and dense star-forming regions. However, characterising their ionisation rate is still challenging from an observ…
FAUST XII. Accretion streamers and jets in the VLA 1623--2417 protocluster
C. Codella, L. Podio, M. De Simone +23
The ALMA interferometer has played a key role in revealing a new component of the Sun-like star forming process: the molecular streamers, i.e. structures up to thousands of au long…
The ALMA Survey of 70 μm Dark High-mass Clumps in Early Stages (ASHES). X: Hot Gas Reveals Deeply Embedded Star Formation
Natsuko Izumi, Patricio Sanhueza, Patrick M. Koch +10
Massive infrared dark clouds (IRDCs) are considered to host the earliest stages of high-mass star formation. In particular, 70 m dark IRDCs are the colder and more quiescent clo…
The ALMA Survey of 70 m Dark High-mass Clumps in Early Stages (ASHES). IX. Physical Properties and Spatial Distribution of Cores in IRDCs
Kaho Morii, Patricio Sanhueza, Fumitaka Nakamura +13
The initial conditions found in infrared dark clouds (IRDCs) provide insights on how high-mass stars and stellar clusters form. We have conducted high-angular resolution and high-s…
The ALMA Survey of 70 μm Dark High-mass Clumps in Early Stages (ASHES). VIII. Dynamics of Embedded Dense Cores
Shanghuo Li, Patricio Sanhueza, Qizhou Zhang +9
We present the dynamical properties of 294 cores embedded in twelve IRDCs observed as part of the ASHES Survey. Protostellar cores have higher gas masses, surface densities, column…
First ALMA maps of cosmic ray ionisation rate in high-mass star-forming regions
Giovanni Sabatini, Stefano Bovino, Elena Redaelli
Low-energy cosmic rays ( TeV) are a pivotal source of ionisation of the interstellar medium, where they play a central role in determining the gas chemical composition and dras…
The ALMA Survey of 70 Dark High-mass Clumps in Early Stages (ASHES). VII: Chemistry of Embedded Dense Cores
Shanghuo Li, Patricio Sanhueza, Xing Lu +15
We present a study of chemistry toward 294 dense cores in 12 molecular clumps using the data obtained from the ALMA Survey of 70 dark High-mass clumps in Early Stages (ASH…
The core population and kinematics of a massive clump at early stages: an ALMA view
E. Redaelli, S. Bovino, P. Sanhueza +5
High-mass star formation theories make distinct predictions on the properties of the prestellar seeds of high-mass stars. Observations of the early stages of high-mass star formati…
The ALMA Survey of 70 μm Dark High-mass Clumps in Early Stages (ASHES). VI. The core-scale CO-depletion
Giovanni Sabatini, Stefano Bovino, Patricio Sanhueza +11
Studying the physical and chemical properties of cold and dense molecular clouds is crucial for the understanding of how stars form. Under the typical conditions of infrared dark c…
Synthetic observations using POLARIS: an application to simulations of massive prestellar cores
Joaquin Zamponi, Andrea Giannetti, Stefano Bovino +5
Young massive stars are usually found embedded in dense and massive molecular clumps which are known for being highly obscured and distant. During their formation process, the degr…
Chemical analysis of prestellar cores in Ophiuchus yields short timescales and rapid collapse
Stefano Bovino, Alessandro Lupi, Andrea Giannetti +4
Sun-like stars form from the contraction of cold and dense interstellar clouds. How the collapse proceeds and what are the main physical processes driving it, however, is still und…
Establishing the evolutionary timescales of the massive star formation process through chemistry
G. Sabatini, S. Bovino, A. Giannetti +6
(Abridged) Understanding the details of the formation process of massive (i.e. M<8-10M) stars is a long-standing problem in astrophysics. [...] We present a method to deriv…
Identification of prestellar cores in high-mass star forming clumps via observations with ALMA
E. Redaelli, S. Bovino, A. Giannetti +5
Context. The different theoretical models concerning the formation of high-mass stars make distinct predictions regarding their progenitors, i.e. the high-mass prestellar cores. Ho…
Survey of ortho-HD in high-mass star-forming regions
G. Sabatini, S. Bovino, A. Giannetti +7
(Abridged) We present a large sample of o-HD observations in high-mass star-forming regions and discuss possible empirical correlations with relevant physical quantities to…