activity
20232026
most citedA new method for spatially resolving the turbulence driving mixture in the ISM with application to the Small Magellanic Cloud

20 citations · 27 across the 17 of their papers we have counts for

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18 papers · 1 filter

astro-ph.GA2026

Tracing Winds through the Fog: A Comprehensive Survey of LMC's Galactic Outflows with ULLYSES

Suraj Poudel, April Horton, Kathleen A. Barger +21

We investigate nearside stellar-driven outflows from the Large Magellanic Cloud (LMC) using UV absorption-line spectroscopy of 170 OB stars, complemented by HI 21-cm emission and H…

astro-ph.GA2026

A Detailed GASKAP-HI View of Shells and Loops in the Magellanic Bridge

Shin-Jeong Kim, Antoine Marchal, N. M. McClure-Griffiths +19

We present 8 pc-scale GASKAP-HI observations of an HI shell (diameter \sim130 pc) associated with the Hαshell DEM171 in the Magellanic Bridge. The Bridge's diffuse, HI-dominated en…

astro-ph.GA2026

The GASKAP-HI Survey towards the Magellanic Clouds: Cold Atomic Gas Survival and Evolution in the Large Magellanic Cloud

Hongxing Chen, Snezana Stanimirovic, James Dempsey +18

We use atomic hydrogen (HI) absorption detections from the GASKAP-HI survey to investigate the properties of cold atomic gas in the Large Magellanic Cloud (LMC). Using the radiativ…

astro-ph.GA2026

The Multi-phase HI of the Milky Way and Nearby Galaxies

Marc-Antoine Miville-Deschênes, J. R. Dawson, Narendra Nath Patra +30

Atomic hydrogen (HI) is the dominant baryonic component of the interstellar medium (ISM) in Milky Way-like galaxies and the reservoir from which molecular clouds and stars ultimate…

astro-ph.GA2026

Revealing the cold skeleton of the Magellanic Clouds and the Magellanic Bridge with ASKAP

James Dempsey, N. M. McClure-Griffiths, Antoine Marchal +14

We present the GASKAP-HI pilot absorption survey of neutral hydrogen (HI) in the Magellanic system. This survey provides 3219 sightlines across the Large (LMC) and Small Magellanic…

astro-ph.GA2026

Modeling the Milky Way wind: Supernova-driven outflows accelerate HI clouds near the Galactic center

Andrea Afruni, Enrico M. Di Teodoro, Lucia Armillotta +2

Multiwavelength observations, from radio to X-rays, have revealed the presence of multiphase high-velocity gas near the center of the Milky Way likely associated with powerful gala…

astro-ph.GA2025

A High-resolution Study of the Cold Neutral Medium in and around 30 Doradus

Gyueun Park, Min-Young Lee, John M. Dickey +17

With the aim of evaluating the roles of the cold neutral medium (CNM) in the cloud-scale baryon cycle, we perform a high-resolution study of the CNM in and around the extreme star-…

astro-ph.GA2025

Study of HI Turbulence in the SMC Using Multi-point Structure Functions

Bumhyun Lee, Min-Young Lee, Jungyeon Cho +19

Turbulence in the interstellar medium (ISM) plays an important role in many physical processes, including forming stars and shaping complex ISM structures. In this work, we investi…

astro-ph.GA2025

Multi-wavelength probes of the Milky Way's Cold Interstellar Medium: Radio HI and Optical KI Absorption with GASKAP and GALAH

Hiep Nguyen, Sven Buder, Juan D. Soler +19

We present a comparative analysis of interstellar hydrogen (HI) and potassium (KI) absorption from the radio and optical surveys, GASKAP and GALAH, to study the physical and kinema…

astro-ph.GA2025

New Interpretation for the Orientation of the LMC's Gaseous Arms B and E using ULLYSES

April Horton, Suraj Poudel, Kathleen A. Barger +20

The Large Magellanic Cloud (LMC) experiences disruption from tidal and ram-pressure forces as it travels through the halo of the Milky Way. In this project, we combine radio emissi…

astro-ph.GA2025★ 3 cited

A neutral hydrogen absorption study of cold gas in the outskirts of the Magellanic Clouds using the GASKAP-HI survey

Hongxing Chen, Snežana Stanimirović, Nickolas M. Pingel +18

Cold neutral hydrogen (HI) is a crucial precursor for molecular gas formation and can be studied via HI absorption. This study investigates HI absorption in low column density regi…

astro-ph.GA2025

The Gaseous Blowout of the 30 Doradus Starburst Region in the LMC

Suraj Poudel, April Horton, Jo Vazquez +20

Widespread galactic winds emanate from the Large Magellanic Cloud (LMC), with the 30 Doradus starburst region generating the fastest and most concentrated gas flows. We report on t…

astro-ph.GA2025★ 2 cited

Considerations with stacking absorption spectra: cold HI gas in cirrus region of the Milky Way

Callum Lynn, Antoine Marchal, N. M. McClure-Griffiths +15

We use the Milky Way neutral hydrogen (HI) absorption and emission spectra from the Galactic Australian Square Kilometre Array Pathfinder (GASKAP) Phase II Pilot survey along with…

astro-ph.GA2024

Multi-phase HI clouds in the Small Magellanic Cloud halo

F. Buckland-Willis, M. A. Miville-Deschenes, A. Marchal +13

Context. The Galactic ASKAP collaboration (GASKAP) is undertaking an HI emission survey of the 21cm line to map the Magellanic system and the Galactic plane with the Australian Squ…

astro-ph.GA2024

Local HI Absorption towards the Magellanic Cloud foreground using ASKAP

Hiep Nguyen, N. M. McClure-Griffiths, James Dempsey +21

We present the largest Galactic neutral hydrogen HI absorption survey to date, utilizing the Australian SKA Pathfinder Telescope at an unprecedented spatial resolution of 30''. Thi…

astro-ph.GA2023★ 1 cited

A Galactic Eclipse: The Small Magellanic Cloud is Forming Stars in Two, Superimposed Systems

Claire E. Murray, Sten Hasselquist, Joshua E. G. Peek +22

The structure and dynamics of the star-forming disk of the Small Magellanic Cloud (SMC) have long confounded us. The SMC is widely used as a prototype for galactic physics at low m…

astro-ph.GA2023

Mapping a lower limit on the mass fraction of the cold neutral medium using Fourier transformed HI 21cm emission line spectra: Application to the DRAO Deep Field from DHIGLS and the HI4PI survey

Antoine Marchal, Peter G. Martin, Marc-Antoine Miville-Deschênes +4

We develop a new method for spatially mapping a lower limit on the mass fraction of the cold neutral medium by analyzing the amplitude structure of , the Fourier tra…

astro-ph.GA2023★ 20 cited

A new method for spatially resolving the turbulence driving mixture in the ISM with application to the Small Magellanic Cloud

Isabella A. Gerrard, Christoph Federrath, Nickolas M. Pingel +12

Turbulence plays a crucial role in shaping the structure of the interstellar medium. The ratio of the three-dimensional density contrast () to the turbulent sonic Mach n…