Giuliana Cosentino

Low cosmic-ray ionisation at parsec scales in G035.39-00.33

A. Socci, Ashley Barnes, Jaime Pineda, O. Sipilä et autres

Cosmic rays (CRs) regulate the chemical evolution of the gas and its coupling to the magnetic field in the densest and coldest regions of the interstellar medium (ISM). However, the CR ionisation rate of H$_2$ ($ζ_2$) is one of the most debated …

Low cosmic-ray ionisation at parsec scales in G035.39-00.33

A. Socci, Ashley Barnes, Jaime Pineda, O. Sipilä et autres

Cosmic rays (CRs) regulate the chemical evolution of the gas and its coupling to the magnetic field in the densest and coldest regions of the interstellar medium (ISM). However, the CR ionisation rate of H$_2$ ($ζ_2$) is one of the most debated …

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Silicon monoxide in the filamentary infrared dark cloud G035.39-00.33: An ALMA view

Rong Liu, Izaskun Jiménez-Serra, Giuliana Cosentino, C. Jonathan Tan et autres

Aims . Filamentary infrared dark clouds (IRDCs) are believed to represent the initial conditions for massive star and cluster formation. Methods . We investigated the IRDC G035.39-00.33 using SiO, H 13 CO + , CH 3 OH, and CS emission observed with …

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Empowering the Next-Generation ALMA Imaging with AI

Fabrizia Guglielmetti, Philipp Arras, Ivano Baronchelli, Matteo Bonato et autres

The ESO-internal ALMA development study, BRAIN1tackles the ill-posed inverse problem of interferometric astronomical imaging by integrating advanced astrostatistical and astroinformatic methodologies. Beyond improving the imaging process scientifically and operationally, this effort addresses the broader challenge of the data avalanche faced by modern …

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Silicon monoxide in the filamentary infrared dark cloud G035.39-00.33: An ALMA view

Rong Liu, Izaskun Jiménez-Serra, Giuliana Cosentino, C. Jonathan Tan et autres

Aims. Filamentary infrared dark clouds (IRDCs) are believed to represent the initial conditions for massive star and cluster formation. Methods. We investigated the IRDC G035.39-00.33 using SiO, H13CO+, CH3OH, and CS emission observed with ALMA at 3.5″ resolution (∼0.05 pc). The analysis …

SiO emission in the filamentary Infrared Dark Cloud G035.39-00.33: An ALMA view

Rong Liu, Izaskun Jiménez-Serra, Giuliana Cosentino, Jonathan C. Tan et autres

Filamentary infrared dark clouds (IRDCs) are believed to represent the initial conditions for massive star and cluster formation. We investigate the IRDC G035.39-00.33 using SiO, H13CO+, CH3OH, and CS emission observed with ALMA at 3.5\arcsec\ resolution (0.05 pc). The SiO emission traces …

The role of supernova remnants for the emergence of pre-biotic chemistry in molecular clouds

Giuliana Cosentino, Izaskun Jiménez-Serra, Laura Colzi, V. M. Rivilla et autres

There is growing evidence that the Sun might have formed within a nebula impacted by at least one SNR. In this scenario, ejecta and shocks from SNRs may have provided the elements on which life as we know it is based. Investigating …

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The SOFIA Massive (SOMA) star formation Q-band follow-up

Prasanta Gorai, Kotomi Taniguchi, Jonathan C. Tan, M. Gómez-Garrido et autres

Context. Hydrogen recombination lines (HRLs) are valuable diagnostics of the physical conditions in ionized regions surrounding high-mass stars. Understanding these lines, including broadening mechanisms and intensity trends, can provide insights into HII region densities, temperatures, and kinematics. Aims. This study aims to …

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The SOFIA Massive (SOMA) star formation Q-band follow-up

Prasanta Gorai, Kotomi Taniguchi, Jonathan C. Tan, M. Gómez-Garrido et autres

Context. Hydrogen recombination lines (HRLs) are valuable diagnostics of the physical conditions in ionized regions surrounding high-mass stars. Understanding these lines, including broadening mechanisms and intensity trends, can provide insights into HII region densities, temperatures, and kinematics. Aims. This study aims to …

no, jp, us, se, es, cn, fr, it, de, in (code pays fourni par la source)

The SOFIA Massive (SOMA) Star Formation Survey. V. Clustered Protostars

Zoie Telkamp, R. Fedriani, Jonathan C. Tan, Chi-Yan Law et autres

Abstract We present ∼8–40 μm SOFIA-FORCAST images of seven regions of “clustered” star formation as part of the SOFIA Massive Star Formation Survey. We identify a total of 34 protostar candidates and build their spectral energy distributions (SEDs). We fit these SEDs …

The Core Mass Function across Galactic Environments. IV. The Galactic Center

Alva V. I. Kinman, Maya A. Petkova, Jonathan C. Tan, Giuliana Cosentino et autres

Abstract The origin of the stellar initial mass function (IMF) and how it may vary with galactic environment is a matter of debate. Certain star formation theories involve a close connection between the IMF and the core mass function (CMF), so it …

Interaction between the supernova remnant W44 and the infrared dark cloud G034.77-00.55: Shock induced star formation

Giuliana Cosentino, Izaskun Jiménez-Serra, Ashley T. Barnes, J. C. Tan et autres

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 used high angular resolution N2H+(1−0) images across …

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