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3-D CMZ II: Hierarchical Structure Analysis of the Central Molecular Zone
Cara Battersby, Daniel L. Walker, Ashley Barnes +16
The Central Molecular Zone (CMZ) is the way station at the heart of our Milky Way Galaxy, connecting gas flowing in from Galactic scales with the central nucleus. Key open question…
CO isotopologue-derived molecular gas conditions and CO-to-H conversion factors in M51
Jakob den Brok, María J. Jiménez-Donaire, Adam Leroy +24
Over the past decade, several millimeter interferometer programs have mapped the nearby star-forming galaxy M51 at a spatial resolution of pc. This study combines observ…
3-D CMZ III: Constraining the 3-D structure of the Central Molecular Zone via molecular line emission and absorption
Daniel L. Walker, Cara Battersby, Dani Lipman +15
The Milky Way's Central Molecular Zone (CMZ) is the largest concentration of dense molecular gas in the Galaxy, the structure of which is shaped by the complex interplay between Ga…
3-D CMZ I: Central Molecular Zone Overview
Cara Battersby, Daniel L. Walker, Ashley Barnes +16
The Central Molecular Zone (CMZ) is the largest reservoir of dense molecular gas in the Galaxy and is heavily obscured in the optical and near-IR. We present an overview of the far…
3-D CMZ IV: Distinguishing Near vs. Far Distances in the Galactic Center Using Spitzer and Herschel
Dani Lipman, Cara Battersby, Daniel L. Walker +15
A comprehensive 3-D model of the central 300 pc of the Milky Way, the Central Molecular Zone (CMZ) is of fundamental importance in understanding energy cycles in galactic nuclei, s…
Do stars still form in molecular gas within CO-dark dwarf galaxies?
David J. Whitworth, Rowan J. Smith, Simon C. O. Glover +6
In the Milky Way and other main-sequence galaxies, stars form exclusively in molecular gas, which is traced by CO emission. However, low metallicity dwarf galaxies are often `CO-da…
Filamentary Molecular Cloud Formation via Collision-induced Magnetic Reconnection in Cold Neutral Medium
Shuo Kong, Rowan J. Smith, David Whitworth +1
We have investigated the possibility of molecular cloud formation via the Collision-induced Magnetic Reconnection (CMR) mechanism of the cold neutral medium (CNM). Two atomic gas c…
Self-consistent modelling of the Milky Way structure using live potentials
Eva Durán-Camacho, Ana Duarte-Cabral, Alex R. Pettitt +6
To advance our understanding of the evolution of the interstellar medium (ISM) of our Galaxy, numerical models of Milky Way (MW) type galaxies are widely used. However, most models…
Do spiral arms enhance star formation efficiency?
Miguel Querejeta, Adam K. Leroy, Sharon E. Meidt +32
Spiral arms are some of the most spectacular features in disc galaxies, and also present in our own Milky Way. It has been argued that star formation should proceed more efficientl…
The persistence of high altitude non-equilibrium diffuse ionized gas in simulations of star forming galaxies
Lewis McCallum, Kenneth Wood, Robert Benjamin +4
Widespread, high altitude, diffuse ionized gas with scale heights of around a kiloparsec is observed in the Milky Way and other star forming galaxies. Numerical radiation-magnetohy…
Characterizing the 3D Structure of Molecular Cloud Envelopes in the "Cloud Factory" Simulations
Elijah Mullens, Catherine Zucker, Claire E. Murray +1
We leverage recent numerical simulations of highly resolved star-forming regions in a Milky Way-like Galaxy to explore the nature of extended gaseous envelopes around molecular clo…
Testing kinematic distances under a realistic Galactic potential
Glen H. Hunter, Mattia C. Sormani, Jan P. Beckmann +15
Obtaining reliable distance estimates to gas clouds within the Milky Way is challenging in the absence of certain tracers. The kinematic distance approach has been used as an alter…
On the evolution of the observed Mass-to-Length relationship for star-forming filaments
Jiancheng Feng, Rowan J. Smith, Alvaro Hacar +2
The interstellar medium is threaded by a hierarchy of filaments from large scales (~ 100 pc) to small scales (~ 0.1pc). The masses and lengths of these nested structures may reveal…