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

collaborators

20 papers

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.IM2026

IViS: Interferometric Visibility-domain inversion Software - A GPU-accelerated Python framework for joint deconvolution with ASKAP

A. Marchal, N. M. McClure-Griffiths, J. Dempsey +9

Wide-field spectral-line imaging with modern radio interferometers remains challenging when the emission is extended, multiscale, and distributed over many overlapping pointings. A…

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.IM2024★ 1 cited

Processing of GASKAP-HI pilot survey data using a commercial supercomputer

Ian P. Kemp, Nickolas M. Pingel, Rowan Worth +15

Modern radio telescopes generate large amounts of data, with the next generation Very Large Array (ngVLA) and the Square Kilometre Array (SKA) expected to feed up to 292 GB of visi…

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…