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Related papers: Kinematics and properties of the Central Molecular…

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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 questions remain about its 3-D structure, star formation properties,…

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 Galactic-scale dynamics and extreme physical conditions.…

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-IR dust continuum, where the molecular clouds are revealed,…

To determine the properties of the ionized gas at the edge of the CMZ near Sgr E we observed a small portion of the edge of the CMZ near Sgr E with spectrally resolved [C II] 158 micron and [N II] 205 micron fine structure lines at six…

Astrophysics of Galaxies · Physics 2015-06-23 W. D. Langer , P. F. Goldsmith , J. L. Pineda , T. Velusamy , M. A. Requena-Torres , H. Wiesemeyer

The molecular gas in the Central Molecular Zone (CMZ) of the Galaxy has been studied using infrared absorption spectra of H$_3^+$ lines at 3.5-4.0 $\mu$m and CO lines near 2.34 $\mu$m. In addition to the previously reported spectra of these…

High Energy Astrophysical Phenomena · Physics 2019-10-14 Takeshi Oka , T. R. Geballe , Miwa Goto , Tomonori Usuda , Benjamin , J. McCall , Nick Indriolo

By mapping the molecular fraction of the Galactic Center (GC), we quantitatively address the question of how much molecular and central the CMZ (Central Molecular Zone) is. For this purpose we analyze the CO and HI-line archival data, and…

Astrophysics of Galaxies · Physics 2022-09-14 Yoshiaki Sofue

The central molecular zone (CMZ) hosts some of the most massive and dense molecular clouds and star clusters in the Galaxy, offering an important window into star formation under extreme conditions. Star formation in this extreme…

Astrophysics of Galaxies · Physics 2017-02-22 J. D. Henshaw

Our goal is to estimate the total gas mass in the direction of the Central Molecular Zone (CMZ), quantify the various uncertainties associated, and discuss the implications for the estimates of CR energy densities and dust opacities. The…

Astrophysics of Galaxies · Physics 2025-05-07 H. X. Ren , Q. Remy , S. Ravikularaman , M. Bouyahiaoui , F. Conte , J. Djuvsland

Magnetic fields of molecular clouds in the Central Molecular Zone (CMZ) have been relatively underobserved at sub-parsec resolution. Here we report JCMT/POL2 observations of polarized dust emission in the CMZ, which reveal magnetic field…

We have mapped 20 molecular lines in the Central Molecular Zone (CMZ) around the Galactic Centre, emitting from 85.3 to 93.3 GHz. This work used the 22-m Mopra radio telescope in Australia, equipped with the 8-GHz bandwidth UNSW-MOPS…

We use hydrodynamical simulations to study the Milky Way's central molecular zone (CMZ). The simulations include a non-equilibrium chemical network, the gas self-gravity, star formation and supernova feedback. We resolve the structure of…

The structures and dynamics of the interstellar medium are governed by a combination of self-gravity, external gravity, and various sources of ordered and random motions on different spatial scales. This paper uses ALMA CO (3-2)…

Astrophysics of Galaxies · Physics 2026-04-27 Liam M. Wang , Jiayi Sun , Yu-Hsuan Teng , Eric W. Koch , Sanghyuk Moon , Elias Oakes , Erik Rosolowsky

The 3D structure of The Milky Way's Central Molecular Zone (CMZ) informs our understanding of star formation cycles, black hole accretion, and the evolution of galactic nuclei. However, a comprehensive 3D model has remained elusive, as no…

The H3+ molecule has been detected in many lines of sight within the central molecular zone (CMZ) with exceptionally large column densities and unusual excitation properties compared to diffuse local clouds. The detection of the (3,3)…

The Central Molecular Zone (CMZ) is a ring-like accumulation of molecular gas in the innermost few hundred parsecs of the Milky Way, generated by the inward transport of matter driven by the Galactic bar. The CMZ is the most extreme…

Astrophysics of Galaxies · Physics 2022-03-23 Jonathan D. Henshaw , Ashley T. Barnes , Cara Battersby , Adam Ginsburg , Mattia C. Sormani , Daniel L. Walker

Large-scale CO surveys have revealed that the central molecular zone (CMZ) of our Galaxy is characterized by a number of expanding shells/arcs, and by a peculiar population of compact clouds with large velocity widths -- high-velocity…

Astrophysics of Galaxies · Physics 2010-02-12 Tomoharu Oka , Kunihiko Tanaka , Shinji Matsumura , Makoto Nagai , Kazuhisa Kamegai , Tetsuo Hasegawa

The Central Molecular Zone (CMZ; inner $\sim{}200~\rm{}pc$) of the Milky Way is a star formation (SF) environment with very extreme physical properties. Exploration of SF in this region is important because (i) this region allows us to test…

Astrophysics of Galaxies · Physics 2017-07-12 Jens Kauffmann , Thushara Pillai , Qizhou Zhang , Karl M. Menten , Paul F. Goldsmith , Xing Lu , Andrés E. Guzmán

(Abridged) The Central Molecular Zone (CMZ) of the Milky Way exhibits extreme conditions, including high gas densities, elevated temperatures, enhanced cosmic-ray ionization rates, and large-scale dynamics. Large-scale molecular surveys…

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, since the 3-D structure influences the location and intensity…

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