Detection of interstellar 1-cyanopyrene: A four-ring polycyclic aromatic hydrocarbon

G Wenzel, IR Cooke, PB Changala, EA Bergin… - Science, 2024 - science.org
Polycyclic aromatic hydrocarbons (PAHs) are organic molecules containing adjacent
aromatic rings. Infrared emission bands show that PAHs are abundant in space, but only a …

Detections of interstellar aromatic nitriles 2-cyanopyrene and 4-cyanopyrene in TMC-1

G Wenzel, TH Speak, PB Changala, RHJ Willis… - Nature …, 2024 - nature.com
Polycyclic aromatic hydrocarbons (PAHs) are among the most widespread compounds in
the universe, accounting for up to~ 25% of all interstellar carbon. Since most unsubstituted …

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 …

The Fraction of Dust Mass in the Form of Polycyclic Aromatic Hydrocarbons on 10–50 pc Scales in Nearby Galaxies

J Sutter, K Sandstrom, J Chastenet… - The Astrophysical …, 2024 - iopscience.iop.org
Polycyclic aromatic hydrocarbons (PAHs) are a ubiquitous component of the interstellar
medium (ISM) in z∼ 0 massive, star-forming galaxies and play key roles in ISM energy …

Feedback in Emerging Extragalactic Star Clusters, FEAST: The Relation between 3.3 μm Polycyclic Aromatic Hydrocarbon Emission and Star Formation Rate Traced …

B Gregg, D Calzetti, A Adamo, V Bajaj… - The Astrophysical …, 2024 - iopscience.iop.org
We present maps of ionized gas (traced by Paα and Brα) and 3.3 μm polycyclic aromatic
hydrocarbon (PAH) emission in the nearby spiral galaxy NGC 628, derived from new …

Polycyclic aromatic hydrocarbon emission in galaxies as seen with JWST

D Rigopoulou, FR Donnan… - Monthly Notices of …, 2024 - academic.oup.com
We present a systematic study of mid-infrared spectra of galaxies including star-forming
galaxies and active galactic nuclei observed with JWST MIRI-MRS and NIRSpec-IFU. We …

High-Resolution Far- to Near-Infrared Anharmonic Absorption Spectra of Cyano-Substituted Polycyclic Aromatic Hydrocarbons from 300 to 6200 cm−1

VJ Esposito, RC Fortenberry, C Boersma… - ACS Earth and Space …, 2024 - ACS Publications
Cyano-substituted polycyclic aromatic hydrocarbons (CN-PAHs) may contribute to the
emission detected in the 7− 9 μm (1430− 1100 cm− 1) and 11− 15 μm (900− 670 cm− 1) …

The Galaxy Activity, Torus, and Outflow Survey (GATOS)-V. Unveiling PAH survival and resilience in the circumnuclear regions of AGNs with JWST

I García-Bernete, D Rigopoulou, FR Donnan… - Astronomy & …, 2024 - aanda.org
This study analyses JWST MIRI/MRS observations of the infrared (IR) polycyclic aromatic
hydrocarbon (PAH) bands in the nuclear (∼ 0.4 ″at 11 μm;∼ 75 pc) and circumnuclear …

FEAST: Feedback in emerging extragAlactic star ClusTers: JWST spots polycyclic aromatic hydrocarbon destruction in NGC 628 during the emerging phase of star …

A Pedrini, A Adamo, D Calzetti, A Bik… - The Astrophysical …, 2024 - iopscience.iop.org
We investigate the emergence phase of young star clusters in the nearby spiral galaxy NGC
628. We use JWST NIRCam and MIRI observations to create spatially resolved maps of the …

Where Have All the Sulfur Atoms Gone? Polycyclic Aromatic Hydrocarbon as a Possible Sink for the Missing Sulfur in the Interstellar Medium. I. The C–S Band …

XJ Yang, L Hua, A Li - The Astrophysical Journal, 2024 - iopscience.iop.org
Despite its biogenic and astrochemical importance, sulfur (S), the 10th most abundant
element in the interstellar medium (ISM) with a total abundance of S/H≈ 2.2× 10− 5, largely …