activity
20182026
most citedChemical complexity in high-mass star formation: An observational and modeling case study of the AFGL 2591 VLA 3 hot core

53 citations · 652 across the 55 of their papers we have counts for

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16 papers · 1 filter

astro-ph.SR2026

Mapping of interstellar ices with JWST in protostellar envelopes: Spatial variations of CO, CO, CO, OCN and HO ice

N. G. C. Brunken, E. F. van Dishoeck, A. C. A. Boogert +16

The composition of planets and their atmospheres is largely determined by the formation environment of the planet. This environment is pre-determined during early stages when the p…

astro-ph.GA2026

The Cygnus Allscale Survey of Chemistry and Dynamical Environments: CASCADE: VI. Molecular outflows in the DR21 ridge

I. M. Skretas, A. Karska, F. Wyrowski +8

Star formation takes place in varied environments, from isolated clumps to massive molecular cloud complexes. However, whether the environment in which a star forms has any effect…

astro-ph.SR2026

The CepA disk-outflow system at <=0.2'' or <=100au resolution

H. Beuther, C. Gieser, V. Aberham +21

Context: Although there has been significant progress, the physical properties and potential fragmentation of accretion disks around high-mass protostars remain poorly constrained.…

astro-ph.GA2026

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

Andrea Socci, Ashley Barnes, Jaime Pineda +11

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, th…

astro-ph.GA2026

Probing the ubiquity of complex ices in protostars with JWST: the first systematic quantification of weak ice bands between 6.8 and 7.9 micron

Yuan Chen, Ewine F. van Dishoeck, Katerina Slavicinska +18

Complex organic molecules (COMs) are the key to understanding the chemical evolution from simple interstellar molecules to potential prebiotic material. Although COMs have been ext…

astro-ph.SR2026

Protostellar Outflows at the EarliesT Stages (POETS). IX. Magnetohydrodynamic disk winds traced by SO and SO in luminous protostars

L. Moscadelli, H. Beuther, A. Sanna +13

We investigate two massive young stellar objects (YSOs), IRAS21078+5211 and G035.02+0.35, where evidence for magnetohydrodynamic (MHD) disk winds (DWs) has been obtained at scales…

astro-ph.GA2026

JOYS+ analyses of OCN, NO, NO, and complex cyanides in ices -- Thermal processing results in modest enhancement of OCN ice

P. Nazari, N. Brunken, Y. Chen +12

Nitrogen-bearing molecules are more difficult to observe than oxygen-bearing ones, mainly due to the lower abundance of nitrogen in the interstellar medium. Therefore, the formatio…

astro-ph.SR2026

JOYS: Launch and destruction of dust in protostellar jets. The case of BHR71-IRS1 with JWST MIRI

Łukasz Tychoniec, Logan Francis, Maria Gabriela Navarro +25

Protostellar winds can theoretically lift solids from the planet-forming disks, but direct evidence for launched dust has been scarce so far. Numerous atomic lines that are unique…

astro-ph.SR2026

JOYS: A JWST/MIRI survey of the evolution of H winds and jets from low-mass protostars

L. Francis, Ł. Tychoniec, E. F. van Dishoeck +20

Protostellar outflows display wide-angle winds and collimated jets, the magnetocentrifugal launching of which enables accretion onto the protostar. The majority of the outflow mass…

astro-ph.SR2026

Evidence of Enhanced Ionization in Protostellar Envelopes

Kamber R. Schwarz, S. Maret, M. R. A. Wells +4

Ionization is a major driver of both physical and chemical evolution in protostellar systems. Recent observations reveal substantial chemical processing in protoplanetary disks by…

astro-ph.GA2026★ 2 cited

JOYS: Linking the molecular ice and gas-phase composition towards the high-mass hot core IRAS 18089-1732

C. Gieser, W. R. M. Rocha, Y. Chen +11

Context. The formation and destruction of molecules in the interstellar medium is a complex interplay between gas-phase reactions as well as processes on grain surfaces and within…

astro-ph.SR2026★ 1 cited

Unlocking accretion rate diagnostics for high-mass protostars using JWST/MIRI HI lines

S. D. Reyes-Reyes, H. Beuther, E. F. van Dishoeck +14

While many aspects of high-mass star formation have been investigated, the accretion onto the central protostars is one of the most fundamental but less explored physical propertie…

astro-ph.SR2026

PRODIGE -- envelope to disk with NOEMA VIII. Sulfur oxides trace a shock caused by a streamer in the inner envelope of a protostar

María Teresa Valdivia-Mena, Jaime E. Pineda, Caroline Gieser +24

(Abridged) Recently, streamers have been observed causing shocks at the outer edge of protoplanetary disks. The study of sulfur-bearing species can help us to understand the physic…

astro-ph.GA2026★ 1 cited

PRODIGE - envelope to disk with NOEMA: VII. (Complex) organic molecules in the NGC1333 IRAS4B1 outflow: A new laboratory for shock chemistry

Laura A. Busch, J. E. Pineda, P. Caselli +20

Shock chemistry is an excellent tool to shed light on the formation and destruction mechanisms of complex organic molecules (COMs). The L1157-mm outflow is the only low-mass protos…

astro-ph.SR2026★ 1 cited

JOYS: JWST MIRI/MRS spectra of the inner 500 au region of the L1527 IRS bipolar outflow

R. Devaraj, E. F. van Dishoeck, T. P. Ray +12

This study characterized the physical and kinematic properties within the innermost 500 au region of the L1527 bipolar outflow, a class 0/I low-mass protostar using JWST MIRI/MRS s…

astro-ph.GA2026

The converging gas flow around the infrared dark cloud G28.3

H. Beuther, C. Gieser, H. Linz +7

Aims: The G28.37+0.07 star-forming region is a prototypical infrared dark cloud (IRDC) located at the interface of a converging gas flow. This study characterizes the properties of…