activity
20242026
most citedLinking stellar populations to HII regions across nearby galaxies. II. Infrared Reprocessed and UV Direct Radiation Pressure in HII Regions

13 citations · 24 across the 14 of their papers we have counts for

collaborators

16 papers

astro-ph.GA2026

DIGging into HII regions: the role of ionizing photon leakage and spectral hardening in coupling HII regions and diffuse ionized gas

Dalya Baron, Kathryn Kreckel, Gwen C. Rudie +15

The optical emission-line ratios of star-forming galaxies are broadly understood in the framework of photoionization, yet some systematic trends remain unexplained. Using 50--100 p…

astro-ph.GA2026

JWST Observations of Starbursts: The motion of dust - PAH kinematics of M82 and NGC 253 with JWST/MIRI spectroscopy

Fergus R. Donnan, Karin Sandstrom, Alberto D. Bolatto +27

We present an analysis of dust kinematics in the local starburst galaxies M82 (NGC 3034) and NGC 253 using Polycyclic Aromatic Hydrocarbon (PAH) features observed with JWST/MIRI sp…

astro-ph.GA2026

JWST Observations of Starbursts: A Young Bubble in NGC 253's Central Starburst

Kaitlyn E. Sheriff, Elisabeth A. C. Mills, Xinyu Mai +31

We present a multi-wavelength analysis of a young bubble in the nuclear starburst of NGC 253 using new JWST MIRI-MRS observations together with archival ALMA (100, 350, 690 GHz) an…

astro-ph.SR2026

Using GALEX UV Excess to Search for Metal-poor Halo Stars

Chase L. Smith, Maxwell Moe, Megan Frank +10

Metal-poor solar-type stars display a significant reduction in metal-line blanketing at short wavelengths, leading to an excess of near-ultraviolet (NUV) flux compared to their met…

astro-ph.GA2026

Survival of very small carbonaceous dust grains in the inner-CGM of NGC 891 from JWST/MIRI MRS

Jérémy Chastenet, Ilse De Looze, Karl D. Gordon +26

We present new spectroscopic observations of the inner circumgalactic medium (CGM) of NGC 891 taken with the Mid-Infrared Imager/Medium Resolution Spectroscopy instrument onboard J…

astro-ph.GA2026

JWST Observations of Starbursts: Molecular Hydrogen Excitation and Disequilibrium in M82

Sara E. Duval, J. D. T. Smith, Alberto D. Bolatto +24

Emission from the pure rotational transitions of H traces warm molecular gas, providing insight into its temperature distribution and local heating conditions. We have extended…

astro-ph.GA2026

Determining star formation histories and age-metallicity relations with convolutional neural networks

Enrique Galceran, Patricia Sánchez-Blázquez, Artemi Camps-Fariña +8

We aim to develop a state-of-the-art tool to infer detailed star formation histories (SFHs) and age-metallicity relations from realistic observational data, while mitigating classi…

astro-ph.GA2026★ 1 cited

JWST Observations of Starbursts: Dust Processing in the M82 Superwind

Serena A. Cronin, Alberto D. Bolatto, Helena M. Richie +39

We present JWST MIRI and NIRCam imaging of the inner ~5 kpc of the M82 superwind at 0.05-0.375'' (~0.9-6.5 pc) resolution. Targeted filters probe emission from polycyclic aromatic…

astro-ph.GA2026★ 1 cited

Nowhere Left to Hide: Uncovering All of the Massive Young Embedded Star Clusters in the Antennae with JWST

Rupali Chandar, Miranda Caputo, Paul Goudfrooij +15

The Antennae galaxies merger produces the brightest infrared emission of any galaxy within ~20 Mpc, mostly from intense star formation taking place in supergiant molecular cloud co…

astro-ph.GA2026

Uncovering the multi-scale structure of dust distribution in nearby galaxies

E. Tanchon, M. Boquien, J. Chastenet +18

High-resolution JWST-MIRI images now allow us to resolve in great detail the multi-scale nature of the emission in nearby star-forming galaxies, from compact star-forming regions t…

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★ 8 cited

Polycyclic aromatic hydrocarbons destruction in star-forming regions across 42 nearby galaxies

Oleg V. Egorov, Adam K. Leroy, Karin Sandstrom +30

Polycyclic aromatic hydrocarbons (PAHs) are widespread in the interstellar medium (ISM) of Solar metallicity galaxies, where they play a critical role in ISM heating, cooling, and…

astro-ph.GA2025

Characterization of Two Cool Galaxy Outflow Candidates Using Mid-Infrared Emission from Polycyclic Aromatic Hydrocarbons

Jessica Sutter, Karin Sandstrom, Ryan Chown +22

We characterize two candidate cool galactic outflows in two relatively low mass, highly inclined Virgo cluster galaxies: NGC4424 and NGC4694. Previous analyses of observations usin…

astro-ph.GA2025

The Metallicity Dependence of PAH Emission in Galaxies II: Insights from JWST/NIRCam Imaging of the Smallest Dust Grains in M101

Cory M. Whitcomb, J. -D. T. Smith, Elizabeth Tarantino +11

We explore the physical origins of the observed deficit of polycyclic aromatic hydrocarbons (PAHs) at sub-solar metallicity using JWST/NIRCam imaging of the nearby galaxy M101, cov…

astro-ph.GA2025★ 13 cited

Linking stellar populations to HII regions across nearby galaxies. II. Infrared Reprocessed and UV Direct Radiation Pressure in HII Regions

Debosmita Pathak, Adam Leroy, Todd Thompson +27

Radiation pressure is a key mechanism by which stellar feedback disrupts molecular clouds and drives HII region expansion. This includes direct radiation pressure exerted by UV pho…

astro-ph.IM2024★ 1 cited

Report of the Kavli-IAU Workshop on Global Coordination, "Probing the Universe from far-infrared to millimeter wavelengths: future facilities and their synergies"

Science Organizing Committee, :, George Helou +8

This Report summarizes findings and recommendations from the Kavli-IAU workshop on "Probing the Universe from far-infrared to millimeter wavelengths: future facilities and their sy…