activity
20122026
most citedThe Panchromatic Hubble Andromeda Treasury

374 citations · 426 across the 26 of their papers we have counts for

collaborators

27 papers

astro-ph.GA2026

JWST Whirlpool Galaxy Treasury: Mid-Infrared Emission in M51 and its Relation to Gas Column and Star Formation

Mansi Padave, Karin M. Sandstrom, Daniel A. Dale +25

Using JWST/MIRI imaging of M51 in eight broadband filters, we investigate correlations of mid-infrared emission from polycyclic aromatic hydrocarbons (PAHs) and dust continuum with…

astro-ph.IM2026

The James Webb Space Telescope Absolute Flux Calibration. VI. Near-Infrared Camera Imaging and Coronagraphy

Martha L. Boyer, Benjamin Sunnquist, Bryan Hilbert +4

We present an updated flux calibration for all imaging modes of the Near-Infrared Camera on JWST that converts instrumental units to physical surface brightness units of MJy sr^-1.…

astro-ph.IM2026

Breaking the brightness barrier: JWST/NIRCam DHS spectroscopy for high-precision time-series observations

Achrene Dyrek, John Stansberry, Louis E. Bergeron +12

Many of the most scientifically compelling exoplanets orbit bright nearby stars that exceed the brightness limits of existing JWST spectroscopic observing modes. To address this li…

astro-ph.GA2026

The HII Regions' Molecular Law of Star Formation

Daniela Calzetti, Drew Lapeer, Robert C. Kennicutt +28

We combine imaging data from the HST, JWST, and ground-based millimeter facilities to investigate the correlation between star formation rate (SFR) and molecular gas at the ~100 pc…

astro-ph.GA2026

JWST NIRCam and MIRI Reveal the Dust-Producing AGB Population of NGC 6822

Conor Nally, Olivia C. Jones, Laura Lenkić +9

We present a photometric catalogue of the Local Group dwarf galaxy NGC 6822 based on deep JWST observations obtained with the Near-Infrared Camera (NIRCam) and Mid-Infrared Instrum…

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.GA2025★ 5 cited

JWST Observations of Starbursts: PAHs Closely Trace the Cool Phase of M82's Galactic Wind

Sebastian Lopez, Colton Ring, Adam K. Leroy +30

Stellar feedback drives multiphase gas outflows from starburst galaxies, but the interpretation of dust emission in these winds remains uncertain. To investigate this, we analyze n…

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

Quantification of The Age Dependence of Mid-Infrared Star Formation Rate Indicators

Daniela Calzetti, Robert C. Kennicutt, Angela Adamo +33

We combine James Webb Space Telescope images of the nearby galaxy NGC 5194 in the hydrogen recombination line Pa-alpha (lambda=1.8756 micron) from the Cycle 1 program JWST-FEAST wi…

astro-ph.GA2025★ 7 cited

Detection of Deuterated Hydrocarbon Nanoparticles in the Whirlpool Galaxy, M51

B. T. Draine, Karin Sandstrom, Daniel A. Dale +29

Deuteration of hydrocarbon material, including polycyclic aromatic hydrocarbons (PAHs), has been proposed to account for the low gas-phase abundances of D in the interstellar mediu…

astro-ph.GA2025

An Investigation of Disk Thickness in M51 from H-alpha, Pa-alpha, and Mid-Infrared Power Spectra

Bruce G. Elmegreen, Daniela Calzetti, Angela Adamo +27

Power spectra (PS) of high-resolution images of M51 (NGC 5194) taken with the Hubble Space Telescope and the James Webb Space Telescope have been examined for evidence of disk thic…

astro-ph.GA2025

The JWST Resolved Stellar Populations Early Release Science Program. VIII. The Spatially Resolved Star Formation History of WLM

Roger E. Cohen, Kristen B. W. McQuinn, Alessandro Savino +17

We measure radial stellar age gradients in the relatively isolated gas-rich dwarf irregular WLM, combining JWST NIRCam and NIRISS imaging with six archival Hubble fields over semi-…

astro-ph.GA2024

Scylla II. The Spatially Resolved Star Formation History of the Large Magellanic Cloud Reveals an Inverted Radial Age Gradient

Roger E. Cohen, Kristen B. W. McQuinn, Claire E. Murray +11

The proximity of the Magellanic Clouds provides the opportunity to study interacting dwarf galaxies near a massive host, and spatial trends in their stellar population properties i…

astro-ph.GA2024

Scylla I: A pure-parallel, multi-wavelength imaging survey of the ULLYSES fields in the LMC and SMC

Claire E. Murray, Christina W. Lindberg, Petia Yanchulova Merica-Jones +17

Scylla is a deep Hubble Space Telescope survey of the stellar populations, interstellar medium and star formation in the LMC and SMC. As a pure-parallel complement to the Ultraviol…

astro-ph.GA2024★ 1 cited

The Ancient Star Formation History of the Extremely Low-Mass Galaxy Leo P: An Emerging Trend of a Post-Reionization Pause in Star Formation

Kristen B. W. McQuinn, Max J. B. Newman, Evan D. Skillman +12

Isolated, low-mass galaxies provide the opportunity to assess the impact of reionization on their star formation histories (SFHs) without the ambiguity of environmental processes a…

astro-ph.GA2024★ 15 cited

JWST MIRI and NIRCam observations of NGC 891 and its circumgalactic medium

Jérémy Chastenet, Ilse De Looze, Monica Relaño +37

We present new JWST observations of the nearby, prototypical edge-on, spiral galaxy NGC 891. The northern half of the disk was observed with NIRCam in its F150W and F277W filters.…

astro-ph.GA2024

JWST Observations of Starbursts: Massive Star Clusters in the Central Starburst of M82

Rebecca C. Levy, Alberto D. Bolatto, Divakara Mayya +25

We present a near infrared (NIR) candidate star cluster catalog for the central kiloparsec of M82 based on new JWST NIRCam images. We identify star cluster candidates using the F25…

astro-ph.GA2024

Imaging of I Zw 18 by JWST: II. Spatially resolved star formation history

Giacomo Bortolini, Göran Östlin, Nolan Habel +14

The blue compact dwarf galaxy I Zw 18 is one of the most metal-poor () star-forming galaxies in the local Universe. Its evolutionary status has sparked debate w…

astro-ph.CO2024

An Empirical Calibration of the Tip of the Red Giant Branch Distance Method in the Near Infrared. II. JWST NIRCam Wide Filters

Max J. B. Newman, Kristen B. W. McQuinn, Evan D. Skillman +4

The tip of the red giant (TRGB) is a standardizable candle and is identifiable as the discontinuity at the bright extreme of the red giant branch (RGB) stars in color-magnitude dia…

astro-ph.GA2024

The JWST Resolved Stellar Populations Early Release Science Program VII. Stress Testing the NIRCam Exposure Time Calculator

A. Savino, M. Gennaro, A. E. Dolphin +19

We empirically assess estimates from v3.0 of the JWST NIRCam Exposure Time Calculator (ETC) using observations of resolved stars in Local Group targets taken as part of the Resolve…

astro-ph.GA2024★ 1 cited

JWST Observations of Starbursts: Cold Clouds and Plumes Launching in the M82 Outflow

Deanne B. Fisher, Alberto D. Bolatto, John Chisholm +28

In this paper we study the filamentary substructure of 3.3 m PAH emission from JWST/NIRCam observations in the base of the M82 star-burst driven wind. We identify plume-like sub…

astro-ph.GA2024

Imaging of I Zw 18 by JWST. I. Strategy and First Results of Dusty Stellar Populations

Alec S. Hirschauer, Nicolas Crouzet, Nolan Habel +16

We present a JWST imaging survey of I Zw 18, the archetypal extremely metal-poor, star-forming (SF), blue compact dwarf galaxy. With an oxygen abundance of only 3% $Z_{\odot}…

astro-ph.GA2024★ 18 cited

An Empirical Calibration of the Tip of the Red Giant Branch Distance Method in the Near Infrared. I. HST WFC3/IR F110W and F160W Filters

Max J. B. Newman, Kristen B. W. McQuinn, Evan D. Skillman +4

The Tip of the Red Giant Branch (TRGB)-based distance method in the I band is one of the most efficient and precise techniques for measuring distances to nearby galaxies (D <= 15 M…

astro-ph.GA2024

The JWST Resolved Stellar Populations Early Release Science Program V. DOLPHOT Stellar Photometry for NIRCam and NIRISS

Daniel R. Weisz, Andrew E. Dolphin, Alessandro Savino +38

We present NIRCam and NIRISS modules for DOLPHOT, a widely-used crowded field stellar photometry package. We describe details of the modules including pixel masking, astrometric al…