PDRs4All-III. JWST's NIR spectroscopic view of the Orion Bar

E Peeters, E Habart, O Berné, A Sidhu… - Astronomy & …, 2024 - aanda.org
Context. JWST has taken the sharpest and most sensitive infrared (IR) spectral imaging
observations ever of the Orion Bar photodis-sociation region (PDR), which is part of the …

PDRs4All-X. ALMA and JWST detection of neutral carbon in the externally irradiated disk d203-506: Undepleted gas-phase carbon

JR Goicoechea, J Le Bourlot, JH Black… - Astronomy & …, 2024 - aanda.org
The gas-phase abundance of carbon, x C=[C/H] gas= x C++ x C 0+ x CO+…, and its
depletion factors are essential parameters for understanding the gas and solid compositions …

Suppression of giant planet formation around low-mass stars in clustered environments

S Huang, SP Zwart, MJC Wilhelm - Astronomy & Astrophysics, 2024 - aanda.org
Context. Current exoplanet formation studies tend to overlook the birth environment of stars
in clustered environments. However, the effects of this environment on the planet formation …

OH as a probe of the warm-water cycle in planet-forming disks

M Zannese, B Tabone, E Habart, JR Goicoechea… - Nature …, 2024 - nature.com
Water is a key ingredient for the emergence of life as we know it. Yet, its destruction and
reformation in space remain unprobed in warm gas (T> 300 K). Here we detect with the …

Electronic energy transfer ionization in naphthalene–CO 2 clusters reveals excited states of dry ice

AK Lemmens, A Wannenmacher, N Dias… - Chemical Science, 2024 - pubs.rsc.org
Electronic energy relaxation and transfer shapes the photochemistry in molecules and
materials that are exposed to UV radiation in areas ranging from astrochemistry to biology …

Toward a Unified Injection Model of Short-lived Radioisotopes in N-body Simulations of Star-forming Regions

JW Eatson, RJ Parker, T Lichtenberg - The Astrophysical Journal, 2024 - iopscience.iop.org
Recent research provides compelling evidence that the decay of short-lived radioisotopes
(SLRs), such as 26 Al, provided the bulk of energy for heating and desiccation of volatile-rich …

SOFIA/upGREAT far-infrared spectroscopy of bright rimmed pillars in IC 1848

DC Lis, R Güsten, PF Goldsmith, Y Okada… - Astronomy & …, 2024 - aanda.org
Using the upGREAT instrument on SOFIA, we imaged the [C II] 158 µm fine structure line
emission in bright-rimmed pillars located at the southern edge of the IC 1848 H II region, and …

A tell-tale tracer for externally irradiated protoplanetary disks: Comparing the [CI] 8727 Å line and ALMA observations in proplyds

ML Aru, K Mauco, CF Manara, TJ Haworth… - Astronomy & …, 2024 - aanda.org
The evolution of protoplanetary disks in regions with massive OB stars is influenced by
externally driven winds that deplete the outer parts of these disks. The winds have …

Unveiling two deeply embedded young protostars in the S68N Class 0 protostellar core with JWST/NIRSpec

VJM Le Gouellec, BWP Lew, TP Greene… - arXiv preprint arXiv …, 2024 - arxiv.org
The near-infrared (NIR) emission of the youngest protostars still needs to be characterized to
better understand the evolution of their accretion and ejection activity. We analyze James …

PDRs4All IX. Sulfur elemental abundance in the Orion Bar

E Roueff, FL Petit, JL Bourlot, E Bron… - arXiv preprint arXiv …, 2024 - arxiv.org
One of the main problems in astrochemistry is determining the amount of sulfur in volatiles
and refractories in the interstellar medium. The detection of the main sulfur reservoirs (icy H …