activity
20112026
most citedVariations in the Galactic star formation rate and density thresholds for star formation

359 citations · 1.5k across the 40 of their papers we have counts for

collaborators

40 papers

astro-ph.GA2026

Electron temperature and emission measure of HII regions in the central molecular zone (CMZ) from H40 αrecombination line and continuum emissions by ALMA CMZ Exploration Survey - ACES -

Yoshiaki Sofue, Steven N. Longmore, Daniel Walker +40

Star formation activity in the Central Molecular Zone (CMZ) directly manifests itself as radio continuum free-free emission (Bremsstrahlung) and radio recombination line emission f…

astro-ph.GA2026

ALMA Central molecular zone Exploration Survey (ACES) V: CS(2-1), SO(2_3-1_2), CH3CHO(5_1,4-4_1,3), HC3N(11-10), and H40a lines data

Pei-Ying Hsieh, Daniel L. Walker, Adam Ginsburg +59

We present data from the ALMA Central Molecular Zone Exploration Survey (ACES) Large Program, which provides broad spectral-line and 3 mm continuum coverage of the Central Molecula…

astro-ph.GA2026

MHD Simulations of Strongly Magnetized HII Region Evolution: Evidence for Ionized Gas Filamentation

Samuel Crowe, Yisheng Tu, Zhi-Yun Li +2

Recent JWST observations of HII regions in the Central Molecular Zone have shown a highly filamentary morphology distinct from HII regions in other parts of the galaxy. We present…

astro-ph.GA2026

ALMA Central Molecular Zone Exploration Survey (ACES)-IV. Data of the two intermediate-width spectral windows

Xing Lu, Daniel L. Walker, Adam Ginsburg +61

We release the intermediate-width spectral window data from the ALMA Central Molecular Zone Exploration Survey (ACES) Large Program, which covers SiO(2-1), SO(2_2-1_1), H13CO+(1-0)…

astro-ph.GA2026

ALMA Central Molecular Zone Exploration Survey (ACES) I: Overview

Steven N. Longmore, John Bally, Ashley T. Barnes +95

The mass flows and energy cycles within the inner regions of galaxies exert a powerful influence on the evolution of the galaxy population. The centre of the Milky Way is the only…

astro-ph.GA2026

ALMA Central molecular zone Exploration Survey (ACES) III: Molecular line data reduction and HNCO and HCO data

Daniel L. Walker, Adam Ginsburg, Ashley T. Barnes +64

The ALMA Central molecular zone Exploration Survey (ACES) large program has observed the inner ~ 200 pc of the Milky Way at 3 mm (Band 3) using ALMA's 12m, 7m, and Total Power arra…

astro-ph.GA2026

ALMA Central Molecular Zone Exploration Survey (ACES) II: 3mm continuum images

Adam Ginsburg, Daniel L. Walker, Ashley T. Barnes +69

The ALMA Central Molecular Zone Exploration Survey, ACES, has mapped square arcminutes at 3 mm toward the center of our Galaxy. ACES provides the first large-scale, h…

astro-ph.GA2026

ALMA Central molecular zone Exploration Survey (ACES) VI: ALMA Large Program Reveals a Highly Filamentary Central Molecular Zone

Cara Battersby, Miriam G. Santa-Maria, Dani Lipman +44

The Central Molecular Zone (CMZ) of the Milky Way is the way station that primarily controls how much gas flows from the disk of the Galaxy towards the central nucleus. While this…

astro-ph.GA2025

Rotation and stability of the circumnuclear gas disk in the Galactic Center potential by the ALMA CMZ Exploration Survey (ACES)

Yoshiaki Sofue, Steven N. Longmore, Daniel Walker +26

We investigated the gravitational potential and mass distribution in the Galactic Center by examining the morphology and kinematics of the circumnuclear gaseous disk revealed by th…

astro-ph.GA2025

ACES: The Magnetic Field in Large Filaments in the Galactic Center

Dylan M. Paré, Zi-Xuan Feng, Yue Hu +33

The Galactic Center (GC) is an extreme region of the Milky Way that is host to a complex set of thermal and non-thermal structures. In particular, the GC contains high-density gas…

astro-ph.GA2025

Circum-nuclear eccentric gas flow in the Galactic Center revealed by ALMA CMZ Exploration Survey (ACES)

Yoshiaki Sofue, Tomoharu Oka, Steven N. Longmore +41

We analyze the CS (J=2-1) line cube from the internal data release obtained by the large-scale program "ALMA CMZ Exploration Survey (ACES)" to investigate the kinematic structure o…

astro-ph.GA2025

The Galactic-Centre Arms inferred from ACES (ALMA CMZ Exploration Survey)

Y. Sofue, Tomo. Oka, S. N. Longmore +44

Analyzing longitude-velocity diagrams (LVDs) in the CS(J=2-1) and H13CN(J=1-0) molecular lines from the internal release data of the ALMA Central-Molecular-Zone Exploration Survey…

astro-ph.GA2025

ALMAGAL I. The ALMA evolutionary study of high-mass protocluster formation in the Galaxy. Presentation of the survey and early results

S. Molinari, P. Schilke, C. Battersby +73

Fundamental questions about the physics responsible for fragmenting molecular parsec-scale clumps into cores of ~1000 au are still open, that only a statistically significant inves…

astro-ph.SR2024

Complex investigations of an active star-formation region in southern part of Mon R2

T. A. Movsessian, J. Bally, T. Yu. Magakian +1

We continue to present the results of a Byurakan Narrow Band Imaging Survey (BNBIS). In this work we present the results of the search and further detailed investigation of the obj…

astro-ph.GA2024★ 6 cited

The JWST-NIRCam View of Sagittarius C. II. Evidence for Magnetically Dominated HII Regions in the CMZ

John Bally, Samuel Crowe, Rubén Fedriani +11

We present JWST-NIRCam narrow-band, 4.05 m Brackett- images of the Sgr C HII region, located in the Central Molecular Zone (CMZ) of the Galaxy. Unlike any HII region in the S…

astro-ph.GA2024

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…

astro-ph.GA2024

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…

astro-ph.GA2024

The JWST-NIRCam View of Sagittarius C. I. Massive Star Formation and Protostellar Outflows

Samuel Crowe, Rubén Fedriani, Jonathan C. Tan +14

We present James Webb Space Telescope (JWST)-NIRCam observations of the massive star-forming molecular cloud Sagittarius C (Sgr C) in the Central Molecular Zone (CMZ). In conjuncti…

astro-ph.GA2024

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…

astro-ph.GA2024★ 14 cited

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…

astro-ph.GA2024★ 30 cited

Dynamical Accretion Flows -- ALMAGAL: Flows along filamentary structures in high-mass star-forming clusters

M. R. A. Wells, H. Beuther, S. Molinari +47

We use data from the ALMA Evolutionary Study of High Mass Protocluster Formation in the Galaxy (ALMAGAL) survey to study 100 ALMAGAL regions at 1 arsecond resolution located…

astro-ph.GA2024

Accretion and Outflow in Orion-KL Source I

Melvyn Wright, Brett A. McGuire, Adam Ginsburg +6

We present ALMA observations of SiO, SiS, HO , NaCl, and SO line emission at ~30 to 50 mas resolution. These images map the molecular outflow and disk of Orion Source I (SrcI)…

astro-ph.GA2024

SOFIA/FORCAST Galactic Center Source Catalog

Angela S. Cotera, Matthew J. Hankins, John Bally +12

The central regions of the Milky Way constitute a unique laboratory for a wide swath of astrophysical studies, consequently the inner 400 pc has been the target of numerous l…

astro-ph.GA2024★ 7 cited

Confirming the Explosive Dispersal Outflow in DR21 with ALMA

E. Guzmán Ccolque, M. Fernández López, L. A. Zapata +2

We present Atacama Large Millimeter/submillimeter Array (ALMA) 1.3 mm continuum and CO(2-1) line emission observations toward the high-mass star formation region DR21. Five new con…