activity
20162026
most citedDDO216-A1: a central globular cluster in a low-luminosity transition type galaxy

22 citations · 54 across the 22 of their papers we have counts for

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Showing astro-ph.GAShow all

15 papers · 1 filter

astro-ph.GA2026

Scylla: Observational Evidence for an Order of Magnitude in Dust Mass Opacity Evolution with ISM Density in the Large Magellanic Cloud

Christina W. Lindberg, Christopher J. R. Clark, Claire E. Murray +11

The emissivity of dust is known to vary greatly with radiative environment, density, grain chemistry, and geometry. Discrepancies between dust mass surface densities derived from f…

astro-ph.GA2026

Dust in the very metal-poor galaxy Sextans A with JWST. I: Characterizing the evolved stellar population of Sextans A based on JWST observations and stellar evolution models

C. Gavetti, F. Dell'Agli, E. Tarantino +22

The nearby star-forming dwarf galaxy Sextans A offers a unique window into galaxy evolution in the early Universe, owing to its extremely low metallicity (about 1-7% Zsun). Recent…

astro-ph.GA2026

Scylla VI: Parsec-Scale Dust Extinction Maps in the SMC and LMC

Christina W. Lindberg, Claire E. Murray, Christopher J. R. Clark +14

We present a novel methodology for mapping dust extinction in nearby galaxies at parsec-scale resolution. We apply it to HST 68 fields within the Small and Large Magellanic Clouds…

astro-ph.GA2026

The JWST Resolved Stellar Populations Early Release Science Program. IX. The RR Lyrae Population in WLM with HST and JWST

Catherine M. Slaughter, Evan D. Skillman, Alessandro Savino +16

RR Lyrae stars are a common, dependable Population II distance indicator, and provide an independent tracer of early star formation. Here, we utilize archival HST/ACS and JWST/NIRC…

astro-ph.GA2025

Growth of Aromatic Hydrocarbon Dust Particles in the Extremely Metal-poor Galaxy Sextans A

Elizabeth J. Tarantino, Julia Roman-Duval, Karin M. Sandstrom +17

The mid-infrared spectrum of star-forming, high metallicity galaxies is dominated by emission features from aromatic and aliphatic bonds in small carbonaceous dust grains, often re…

astro-ph.GA2025

The Hubble Arp Galaxy Survey

Julianne J. Dalcanton, Meredith J. Durbin, Benjamin F. Williams

The typical galaxy in the local universe is expected to be in a self-regulated quasi-equilibrium, displaying a settled morphology that falls within the Hubble Sequence. The Arp and…

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★ 1 cited

Strikingly high fraction of fast rotators in Magellanic Cloud star clusters

Greta Ettorre, Alessandro Mazzi, Leo Girardi +14

There has been growing evidence that the rich star clusters in the Magellanic Clouds contain significant fractions of rapidly rotating stars. In this work, we aim to constrain thes…

astro-ph.GA2025

The Local Ultraviolet to Infrared Treasury II. Refining Star Formation Histories of Ten Metal-Poor Dwarf Galaxies with Simultaneous UV-Optical Two-CMD Fitting

Yumi Choi, Karoline M. Gilbert, Benjamin F. Williams +10

We present the star formation histories (SFHs) of ten metal-poor (<12% Zsun), star-forming dwarf galaxies from the Local Ultraviolet to Infrared Treasury (LUVIT) survey. The derive…

astro-ph.GA2025★ 2 cited

A Catalog of Stellar and Dust Properties for 500,000 Stars in the Southwest Bar of the Small Magellanic Cloud

Petia Yanchulova Merica-Jones, Karl Gordon, Karin Sandstrom +8

We present a catalog of individual stellar and dust extinction properties along close to 500,000 sight lines in the southwest bar of the Small Magellanic Cloud (SMC). The catalog i…

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

The JWST Resolved Stellar Populations Early Release Science Program VI. Identifying Evolved Stars in Nearby Galaxies

Martha L. Boyer, Giada Pastorelli, Léo Girardi +20

We present an investigation of evolved stars in the nearby star-forming galaxy WLM, using NIRCam imaging from the JWST resolved stellar populations early-release science (ERS) prog…

astro-ph.GA2023

JWST Reveals Star Formation Across a Spiral Arm in M33

J. Peltonen, Erik Rosolowsky, Thomas G. Williams +13

Young stellar objects (YSOs) are the gold standard for tracing star formation in galaxies but have been unobservable beyond the Milky Way and Magellanic Clouds. But that all change…

astro-ph.GA2019★ 1 cited

Star Formation in Different Environments: The Initial Mass Function

M. W. Hosek, J. R. Lu, M. Andersen +7

The stellar initial mass function (IMF) is a fundamental property of star formation, offering key insight into the physics driving the process as well as informing our understandin…

astro-ph.GA2016★ 22 cited

DDO216-A1: a central globular cluster in a low-luminosity transition type galaxy

Andrew A. Cole, Daniel R. Weisz, Evan D. Skillman +11

We confirm that the object DDO216-A1 is a substantial globular cluster at the center of Local Group galaxy DDO216 (the Pegasus dwarf irregular), using Hubble Space Telescope ACS im…