activity
20232026
most citedSurveying the Whirlpool at Arcseconds with NOEMA (SWAN)- I. Mapping the HCN and NH 3mm lines

13 citations · 46 across the 17 of their papers we have counts for

collaborators

18 papers

astro-ph.GA2026

Quantifying the decline in CO(2-1) intensity around PHANGS-HST star clusters: Constraints on molecular gas dispersal, stellar feedback, and cluster formation efficiency

Hao He, Adam K. Leroy, Erik Rosolowsky +37

We combine the largest survey of star clusters in nearby galaxies to-date, PHANGS-HST, with maps of molecular gas maps from PHANGS-ALMA to constrain the efficiency of cluster forma…

astro-ph.GA2026

From gas to stars along the spiral wave: CO, HCN, and star formation variations across the spiral arms in NGC 4321 and M51

Minou Greve, Lukas Neumann, Mallory Thorp +17

Molecular clouds form stars from the interstellar medium via gravitational collapse, following a sequence from low-density gas to high-density cores and eventually the formation of…

astro-ph.GA2026

Surveying the Whirlpool at Arcseconds with NOEMA (SWAN). IV. Extent of active galactic nucleus feedback on the interstellar medium

Mallory D. Thorp, Antonio Usero, Frank Bigiel +19

Active Galactic Nuclei (AGN) are intertwined with galaxy evolution, injecting energy into the interstellar medium (ISM) that could regulate star formation as a galaxy evolves. Howe…

astro-ph.GA2026★ 2 cited

Molecular gas and star formation in central rings across nearby galaxies

Damian R. Gleis, Sophia K. Stuber, Eva Schinnerer +20

Nearby galaxies exhibit a variety of structures, including central rings, similar to the MW Central Molecular Zone (CMZ). These rings are common in barred galaxies and can be gas-r…

astro-ph.GA2025

Localized Deviations from the CO-PAH Relation in PHANGS-JWST Galaxies: Faint PAH Emission or Elevated CO Emissivity?

Jaeyeon Kim, Adam K. Leroy, Karin Sandstrom +25

Polycyclic aromatic hydrocarbon (PAH) emission is widely used to trace the distribution of molecular gas in the interstellar medium, exhibiting a tight correlation with CO(2-1) emi…

astro-ph.GA2025

Surveying the Whirlpool at Arcseconds with NOEMA (SWAN): III. CO/CO ratio variations across the M51 galaxy

Ina Galić, Mallory Thorp, Frank Bigiel +16

CO isotopologues are common tracers of the bulk molecular gas in extragalactic studies, providing insights into the physical and chemical conditions of the cold molecular gas, a re…

astro-ph.GA2025★ 1 cited

The SWAN view of dense gas in the Whirlpool -- A cloud-scale comparison of N2H+, HCO+, HNC and HCN emission in M51

Sophia K. Stuber, Eva Schinnerer, Antonio Usero +22

Tracing dense molecular gas, the fuel for star formation, is essential for the understanding of the evolution of molecular clouds and star formation processes. We compare the emiss…

astro-ph.GA2025★ 5 cited

Duration and properties of the embedded phase of star formation in 37 nearby galaxies from PHANGS-JWST

Lise Ramambason, Mélanie Chevance, Jaeyeon Kim +32

Light reprocessed by dust grains emitting in the infrared allows the study of the physics at play in dusty, embedded regions, where ultraviolet and optical wavelengths are attenuat…

astro-ph.GA2025★ 7 cited

Reconciling extragalactic star formation efficiencies with theory: insights from PHANGS

Sharon E. Meidt, Simon C. O. Glover, Ralf S. Klessen +22

New extragalactic measurements of the cloud population-averaged star formation (SF) efficiency per freefall time from PHANGS show little sign of theoretically predi…

astro-ph.GA2025

The impact of spiral arms on the star formation life cycle

Andrea Romanelli, Mélanie Chevance, J. M. Diederik Kruijssen +18

The matter cycle between gas clouds and stars in galaxies plays a crucial role in regulating galaxy evolution through feedback mechanisms. In turn, the local and global galactic en…

astro-ph.GA2025★ 7 cited

Dense gas scaling relations at kiloparsec scales across nearby galaxies with the ALMA ALMOND and IRAM 30m EMPIRE surveys

Lukas Neumann, Maria J. Jimenez-Donaire, Adam K. Leroy +17

Dense, cold gas is the key ingredient for star formation. Over the last two decades, HCN(1-0) emission has been utilised as the most accessible dense gas tracer to study external g…

astro-ph.GA2024

Polycyclic Aromatic Hydrocarbon and CO(2-1) Emission at 50-150 pc Scales in 70 Nearby Galaxies

Ryan Chown, Adam K. Leroy, Karin Sandstrom +44

Combining Atacama Large Millimeter/sub-millimeter Array CO(2-1) mapping and JWST near- and mid-infrared imaging, we characterize the relationship between CO(2-1) and polycyclic aro…

astro-ph.GA2024★ 6 cited

Neutral atomic and molecular gas dynamics in the nearby spiral galaxies NGC 1512, NGC 4535, and NGC 7496

Sebastian Laudage, Cosima Eibensteiner, Frank Bigiel +20

Neutral atomic gas (HI) effectively traces galactic dynamics across mid to large galactocentric radii. However, its limitations in observing small-scale changes within the central…

astro-ph.GA2024★ 4 cited

A 260 pc resolution ALMA map of HCN(1-0) in the galaxy NGC 4321

Lukas Neumann, Frank Bigiel, Ashley T. Barnes +24

The star formation rate (SFR) is tightly connected to the amount of dense gas in molecular clouds. However, it is not fully understood how the relationship between dense molecular…

astro-ph.GA2024

Do spiral arms enhance star formation efficiency?

Miguel Querejeta, Adam K. Leroy, Sharon E. Meidt +32

Spiral arms are some of the most spectacular features in disc galaxies, and also present in our own Milky Way. It has been argued that star formation should proceed more efficientl…

astro-ph.GA2024

The properties and kinematics of HCN emission across the closest starburst galaxy NGC 253 observed with ALMA

Ivana Beslic, Ashley T. Barnes, Frank Bigiel +21

Studying molecular gas in nearby galaxies using hydrogen cyanide (HCN) as a tracer for higher densities than CO emission still poses a significant challenge. Even though several ga…

astro-ph.GA2024★ 1 cited

PHANGS-JWST: Data Processing Pipeline and First Full Public Data Release

Thomas G. Williams, Janice C. Lee, Kirsten L. Larson +55

The exquisite angular resolution and sensitivity of JWST is opening a new window for our understanding of the Universe. In nearby galaxies, JWST observations are revolutionizing ou…

astro-ph.GA2023★ 13 cited

Surveying the Whirlpool at Arcseconds with NOEMA (SWAN)- I. Mapping the HCN and NH 3mm lines

Sophia K. Stuber, Jerome Pety, Eva Schinnerer +17

We present the first results from "Surveying the Whirlpool at Arcseconds with NOEMA" (SWAN), an IRAM Northern Extended Millimetre Array (NOEMA)+30m large program that maps emission…