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PHANGS-JWST First Results: Tracing the Diffuse ISM with JWST Imaging of Polycyclic Aromatic Hydrocarbon Emission in Nearby Galaxies
Karin M. Sandstrom, Eric W. Koch, Adam K. Leroy +43
JWST observations of polycyclic aromatic hydrocarbon (PAH) emission provide some of the deepest and highest resolution views of the cold interstellar medium (ISM) in nearby galaxie…
PHANGS-JWST First Results: Measuring PAH Properties across the multiphase ISM
Jérémy Chastenet, Jessica Sutter, Karin Sandstrom +26
Ratios of polycyclic aromatic hydrocarbon (PAH) vibrational bands are a promising tool for measuring the properties of the PAH population and their effect on star formation. The ph…
PHANGS-JWST First Results: Stellar Feedback-Driven Excitation and Dissociation of Molecular Gas in the Starburst Ring of NGC 1365?
Daizhong Liu, Eva Schinnerer, Yixian Cao +36
We compare embedded young massive star clusters (YMCs) to (sub-)millimeter line observations tracing the excitation and dissociation of molecular gas in the starburst ring of NGC 1…
PHANGS-JWST First Results: Rapid Evolution of Star Formation in the Central Molecular Gas Ring of NGC1365
Eva Schinnerer, Eric Emsellem, Jonathan D. Henshaw +36
Large-scale bars can fuel galaxy centers with molecular gas, often leading to the development of dense ring-like structures where intense star formation occurs, forming a very diff…
PHANGS-JWST First Results: Destruction of the PAH molecules in HII regions probed by JWST and MUSE
Oleg V. Egorov, Kathryn Kreckel, Karin M. Sandstrom +30
Polycyclic aromatic hydrocarbons (PAHs) play a critical role in the reprocessing of stellar radiation and in balancing the heating and cooling processes in the interstellar medium…
PHANGS--JWST First Results: ISM structure on the turbulent Jeans scale in four disk galaxies observed by JWST and ALMA
Sharon E. Meidt, Erik Rosolowsky, Jiayi Sun +31
JWST/MIRI imaging of the nearby galaxies IC 5332, NGC 628, NGC 1365 and NGC 7496 from PHANGS reveals a richness of gas structures that in each case form a quasi-regular network of…
The PHANGS-JWST Treasury Survey: Star Formation, Feedback, and Dust Physics at High Angular resolution in Nearby GalaxieS
Janice C. Lee, Karin M. Sandstrom, Adam K. Leroy +74
The PHANGS collaboration has been building a reference dataset for the multi-scale, multi-phase study of star formation and the interstellar medium in nearby galaxies. With the suc…
PHANGS-JWST First Results: Duration of the early phase of massive star formation in NGC628
Jaeyeon Kim, Mélanie Chevance, J. M. Diederik Kruijssen +33
The earliest stages of star formation, when young stars are still deeply embedded in their natal clouds, represent a critical phase in the matter cycle between gas clouds and young…
PHANGS-JWST First Results: The 21 m Compact Source Population
Hamid Hassani, Erik Rosolowsky, Adam K. Leroy +24
We use PHANGS-JWST data to identify and classify 1271 compact 21 m sources in four nearby galaxies using MIRI F2100W data. We identify sources using a dendrogram-based algorithm…
PHANGS-JWST First Results: Multi-wavelength view of feedback-driven bubbles (The Phantom Voids) across NGC 628
Ashley T. Barnes, Elizabeth J. Watkins, Sharon E. Meidt +51
We present a high-resolution view of bubbles within The Phantom Galaxy (NGC 628); a nearby (~10Mpc), star-forming (~2Msun/yr), face-on (i~9deg) grand-design spiral galaxy. With new…
PHANGS-JWST First Results: A statistical view on bubble evolution in NGC628
Elizabeth J. Watkins, Ashley Barnes, Kiana F. Henny +49
The first JWST observations of nearby galaxies have unveiled a rich population of bubbles that trace the stellar feedback mechanisms responsible for their creation. Studying these…
PHANGS-JWST First Results: Spurring on Star Formation: JWST Reveals Localised Star Formation in a Spiral Arm Spur of NGC 628
Thomas G. Williams, Jiayi Sun, Ashley T. Barnes +34
We combine JWST observations with ALMA CO and VLT-MUSE H data to examine off-spiral arm star formation in the face-on, grand-design spiral galaxy NGC 628. We focus on the northe…
PHANGS-JWST First Results: The Influence of Stellar Clusters on PAHs in Nearby Galaxies
Daniel A. Dale, Médéric Boquien, Ashley T. Barnes +28
We present a comparison of theoretical predictions of dust continuum and polycyclic aromatic hydrocarbon (PAH) emission with new JWST observations in three nearby galaxies: NGC 628…
PHANGS-JWST First Results: Dust embedded star clusters in NGC 7496 selected via 3.3 m PAH emission
Jimena Rodriguez, Janice Lee, Bradley Whitmore +38
The earliest stages of star formation occur enshrouded in dust and are not observable in the optical. Here we leverage the extraordinary new high-resolution infrared imaging from J…
Calibration of hybrid resolved star formation rate recipes based on PHANGS-MUSE H and H maps
Francesco Belfiore, Adam K. Leroy, Jiayi Sun +17
Mapping star-formation rates (SFR) within galaxies is key to unveiling their assembly and evolution. Calibrations exist for computing SFR from a combination of ultraviolet and infr…
PHANGS-JWST First Results: A combined HST and JWST analysis of the nuclear star cluster in NGC 628
Nils Hoyer, Francesca Pinna, Albrecht W. H. Kamlah +28
We combine archival HST and new JWST imaging data, covering the ultraviolet to mid-infrared regime, to morphologically analyze the nuclear star cluster (NSC) of NGC 628, a grand-de…
Stellar feedback impact on the ionized gas kinematics in the dwarf galaxy Sextans A
Ivan S. Gerasimov, Oleg V. Egorov, Tatiana A. Lozinskaya +2
Feedback from massive stars shapes the ISM and affects the evolution of galaxies, but its mechanisms acting at the small scales ( pc) are still not well constrained observ…
Unveiling the nitrogen-rich massive star in the metal-poor galaxy NGC 4068
Anastasiya D. Yarovova, Oleg V. Egorov, Alexei V. Moiseev +1
We report the identification of the unusual emission-line stellar-like object in the nearby low-metallicity (Z ~ 0.1Zsun) dwarf galaxy NGC 4068. Our observations performed with lon…
A physically motivated `charge-exchange method' for measuring electron temperatures within HII regions
K. Kreckel, O. Egorov, F. Belfiore +9
Aims: Temperature uncertainties plague our understanding of abundance variations within the ISM. Using the PHANGS-MUSE large program, we develop and apply a new technique to model…