79 citations · 189 across the 18 of their papers we have counts for
18 papers
Detecting HI Self-Absorption using Neural Networks
Eric G. M. Muller, Naomi M. McClure-Griffiths, Hiep Nguyen +5
Cold atomic hydrogen plays a crucial role in the life cycle of interstellar gas. It serves as the intermediary phase in the condensation and cooling processes that bridge the warm…
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…
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…
High-fidelity stellar extinction with Gaia and APOGEE -- I. The method and a new extinction curve
Jie Yu, Luca Casagrande, John A. Taylor +9
The scarcity of high-fidelity extinction measurements remains a bottleneck in deriving accurate stellar properties from Gaia parallaxes. In this work, we aim to derive precision ex…
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-…
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…
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…
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…
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…
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…
TPCNet: Representation learning for HI mapping
Hiep Nguyen, Haiyang Tang, Matthew Alger +4
We introduce TPCNet, a neural network predictor that combines Convolutional and Transformer architectures with Positional encodings, for neutral atomic hydrogen (HI) spectral analy…
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…
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…
Probing the Conditions for the Hı-to-H Transition in the Interstellar Medium
Gyueun Park, Min-Young Lee, Shmuel Bialy +9
In this paper, we investigate the conditions for the HI-to-H transition in the solar neighborhood by analyzing HI emission and absorption measurements toward 58 Galactic line…
GNOMES II: Analysis of the Galactic diffuse molecular ISM in all four ground state hydroxyl transitions using Amoeba
Anita Petzler, J. R. Dawson, Hiep Nguyen +6
We present observations of the four 2 Pi 3/2 J = 3/2 ground-rotational state transitions of the hydroxyl molecule (OH) along 107 lines of sight both in and out of the Galactic plan…
Exploring the properties of warm and cold atomic hydrogen in the Taurus and Gemini regions
Hiep Nguyen, J. R. Dawson, Min-Young Lee +5
We report Arecibo 21 cm absorption-emission observations to characterise the physical properties of neutral hydrogen (HI) in the proximity of five giant molecular clouds (GMCs): Ta…
Dust-Gas Scaling Relations and OH Abundance in the Galactic ISM
Hiep Nguyen, J. R. Dawson, M. -A. Miville-Deschênes +10
Observations of interstellar dust are often used as a proxy for total gas column density . By comparing thermal dust data (Release 1.2) and new dust…
Where is OH and Does It Trace the Dark Molecular Gas (DMG)?
Di Li, Ningyu Tang, Hiep Nguyen +15
Hydroxyl (OH) is expected to be abundant in diffuse interstellar molecular gas as it forms along with under similar conditions and within a similar extinction range. We have…