Min-Young Lee

GASKAP pilot survey science. II. 21cm abs.

John M. Dickey, James Dempsey, Nickolas M. Pingel, N. M. McClure‐Griffiths et autres

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CO-dark Molecular Gas Traced by HCO + in the Diffuse Interstellar Medium

Daniel R. Rybarczyk, M. Busch, J. R. Dawson, Min-Young Lee et autres

Abstract A classic problem in the study of the interstellar medium (ISM) is the near-invisibility of molecular hydrogen (H 2 ) in cold environments. Observations of CO emission are typically used to indirectly trace H 2 , but a significant fraction of …

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

Marc-Antoine Miville-Deschênes, J. R. Dawson, Narendra Nath Patra, Erwan Allys et autres

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 ultimately form. The condensation of diffuse HI into cold structures is governed by a complex interplay …

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

James Dempsey, N M McClure-Griffiths, Antoine Marchal, S E Clark et autres

ABSTRACT We present the GASKAP-HI pilot absorption survey of neutral hydrogen (H i) in the Magellanic system. This survey provides 3219 sightlines across the Large (LMC) and Small Magellanic Clouds (SMC) and the Magellanic Bridge (MB) towards 1.4-GHz continuum sources, representing a …

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

Gyueun Park, Min-Young Lee, John M. Dickey, N. M. Pingel et autres

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-forming region 30 Doradus (30 Dor). For our study, we use …

Study of H i Turbulence in the SMC Using Multipoint Structure Functions

Bumhyun Lee, Min-Young Lee, Jungyeon Cho, Nickolas M. Pingel et autres

Abstract 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 investigate the H i turbulence properties of the Small Magellanic Cloud (SMC) to reveal what …

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New Interpretation for the Orientation of the LMC’s Gaseous Arms B and E Using ULLYSES ∗

A. Horton, Suraj Poudel, Kathleen A. Barger, Scott Lucchini et autres

Abstract The Large Magellanic Cloud (LMC) has experienced disruption from tidal and ram-pressure forces as it travels through the halo of the Milky Way. In this project, we combine radio emission-line observations from the Galactic All Sky Survey and Galactic Australian Square …

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

Bumhyun Lee, Min-Young Lee, Jungyeon Cho, Nickolas M. Pingel et autres

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 investigate the HI turbulent properties of the Small Magellanic Cloud (SMC) to reveal what physical mechanisms …

Multiwavelength probes of the Milky Way’s cold interstellar medium: radio H i and optical K i absorption with GASKAP and GALAH

Hiep Nguyen, Sven Buder, Juan Diego Soler, N. M. McClure‐Griffiths et autres

ABSTRACT We present a comparative analysis of interstellar hydrogen (H i) and potassium (K i) absorption from the radio and optical surveys, GASKAP (Galactic Australian Square Kilometre Array Pathfinder) and GALAH (Galactic Archaeology with HERMES), to study the physical and kinematic properties …

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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 Diego Soler, N. M. McClure‐Griffiths et autres

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 kinematic properties of the cold interstellar medium (ISM) in the Milky Way foreground towards the …

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

Suraj Poudel, Jo Vazquez, Kathleen A. Barger, Frances H. Cashman et autres

Abstract 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 the gas distribution, kinematics, and ionization conditions of the near-side outflow along eight down-the-barrel …

A Neutral Hydrogen Absorption Study of Cold Gas in the Outskirts of the Magellanic Clouds Using the GASKAP-H i Survey

Hongxing Chen, Snežana Stanimirović, Nickolas M. Pingel, James Dempsey et autres

Abstract Cold neutral hydrogen (H i) is a crucial precursor for molecular gas formation and can be studied via H i absorption. This study investigates H i absorption in low column density regions of the Small and Large Magellanic Clouds (SMC and …

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