SOFIA/HAWC+ Far-Infrared Polarimetric Large-Area CMZ Exploration (FIREPLACE) Survey III: Full Survey Data Set

Abstract

We present the second data release (DR2) of the Far-Infrared Polarimetric Large-Area CMZ Exploration (FIREPLACE) survey. This survey utilized the Stratospheric Observatory for Infrared Astronomy (SOFIA) High-resolution Airborne Wideband Camera plus (HAWC+) instrument at 214 $\mu$m (E-band) to observe dust polarization throughout the Central Molecular Zone (CMZ) of the Milky Way. DR2 consists of observations that were obtained in 2022 covering the region of the CMZ extending roughly from the Brick to the Sgr C molecular clouds (corresponding to a roughly 1${}^{\circ }$ $\times$ 0.75${}^{\circ }$ region of the sky). We combine DR2 with the first FIREPLACE data release to obtain full coverage of the CMZ (a 1.5${}^{\circ }$ $\times$0.75${}^{\circ }$ region of the sky). After applying total and polarized intensity significance cuts on the full FIREPLACE data set we obtain $\sim$65,000 Nyquist-sampled polarization pseudovectors. The distribution of polarization pseudovectors confirms a bimodal distribution in the CMZ magnetic field orientations, recovering field components that are oriented predominantly parallel or perpendicular to the Galactic plane. These magnetic field orientations indicate possible connections between the previously observed parallel and perpendicular distributions. We also inspect the magnetic fields toward a set of prominent CMZ molecular clouds (the Brick, Three Little Pigs, 50 km s${}^{-1}$, Circum-nuclear Disk, CO 0.02-0.02, 20 km s${}^{-1}$, and Sgr C), revealing spatially varying magnetic fields that generally trace the morphologies of the clouds. We find evidence that compression from stellar winds and shear from tidal forces are prominent mechanisms influencing the structure of the magnetic fields observed within the clouds.

35 pages, 23 figures, 3 tables. Article is accepted for publication in ApJ

References in corpus (53)

• The Atacama Cosmology Telescope: DR4 Maps and Cosmological Parameters
• Radiative torques: Analytical Model and Basic Properties
• A 100-parsec elliptical and twisted ring of cold and dense molecular clouds revealed by Herschel around the Galactic Center
• Star Formation Rates in Molecular Clouds and the Nature of the Extragalactic Scaling Relations
• The Atacama Cosmology Telescope: A Measurement of the DR6 CMB Lensing Power Spectrum and its Implications for Structure Growth
• ATLASGAL - Compact source catalogue: 330 < l < 21 degrees
• An Imprint of Molecular Cloud Magnetization in the Morphology of the Dust Polarized Emission
• The dynamical evolution of molecular clouds near the Galactic Centre - I. Orbital structure and evolutionary timeline
• How to make maps from CMB data without losing information
• Star Formation in the Central 400 pc of the Milky Way: Evidence for a Population of Massive YSOs
• Magnetic Fields in High-Mass Infrared Dark Clouds
• Star formation rates and efficiencies in the Galactic Centre
• A $\lambda$20cm Survey of the Galactic Center Region I: Detection of Numerous Linear Filaments
• Radiation-magnetohydrodynamic simulations of HII regions and their associated PDRs in turbulent molecular clouds
• Candidate super star cluster progenitor gas clouds possibly triggered by close passage to Sgr A*
• A Dynamical Model for the Formation of Gas Rings and Episodic Starbursts Near Galactic Centres
• The 1.28 GHz MeerKAT Galactic Center Mosaic
• A Radio Polarimetric Study of the Galactic Center Threads
• Balloon-Borne Submillimeter Polarimetry of the Vela C Molecular Cloud: Systematic Dependence of Polarization Fraction on Column Density and Local Polarization-Angle Dispersion
• 'The Brick' is not a brick: A comprehensive study of the structure and dynamics of the Central Molecular Zone cloud G0.253+0.016
• First Results from SPARO: Evidence for Large-Scale Toroidal Magnetic Fields in the Galactic Center
• 350 micron Polarimetry from the Caltech Submillimeter Observatory
• An application of an optimal statistic for characterising relative orientations
• Producing Mega-pixel CMB Maps from Differential Radiometer Data
• Effects of Magnetic Fields on Photoionised Pillars and Globules
• SOFIA/FORCAST Imaging of the Circumnuclear Ring at the Galactic Center
• CMZoom: Survey Overview and First Data Release
• The Dense Gas Fraction in Galactic Center Clouds
• Star Formation Rates of Massive Molecular Clouds in the Central Molecular Zone
• A High-Resolution Survey of HI Absorption toward the Central 200 pc of the Galactic Center
• CRUSH: fast and scalable data reduction for imaging arrays
• The far-infrared polarization spectrum of Rho Ophiuchi A from HAWC+/SOFIA observations
• Early stage massive star formation near the Galactic Center: Sgr C
• Magnetic Field Configuration at the Galactic Center Investigated by Wide Field Near-Infrared Polarimetry: Transition from a Toroidal to a Poloidal Magnetic Field
• Statistical Properties of the Population of the Galactic Center Filaments: The Spectral Index and Equipartition Magnetic Field
• A New Perspective of the Radio Bright Zone at The Galactic Center: Feedback from Nuclear Activities
• The geometry of the magnetic field in the Central Molecular Zone measured by PILOT
• Magnetic Field Configuration at the Galactic Center Investigated by Wide Field Near-Infrared Polarimetry
• The Atacama Cosmology Telescope: Microwave Intensity and Polarization Maps of the Galactic Center
• A Magnetic Field Connecting the Galactic Center Circumnuclear Disk with Streamers and Mini-spiral -Implications from 850 $\mu$m Polarization Data
• A systematic study of radiative torque grain alignment in the diffuse interstellar medium
• SOFIA/HAWC+ Far-InfraRed Polarimetric Large Area CMZ Exploration (FIREPLACE) Survey I: General Results from the Pilot Program
• A VLA Polarimetric Study of the Galactic Center Radio Arc: Characterizing Polarization, Rotation Measure, and Magnetic Field Properties
• Extragalactic magnetism with SOFIA (SALSA Legacy Program) -- III: First data release and on-the-fly polarization mapping characterization
• The Strength of the Sheared Magnetic Field in the Galactic's Circum-Nuclear Disk
• SOFIA/FORCAST Galactic Center Legacy Survey: Overview
• M0.20-0.033: An Expanding Molecular Shell in the Galactic Center Radio Arc
• Absorption Filaments Towards the Massive Clump G0.253+0.016
• A wind-blown bubble in the Central Molecular Zone cloud G0.253+0.016
• How to create Sgr A East: Where did the supernova explode?
• Evidence for an interaction between the Galactic Center clouds M0.10-0.08 and M0.11-0.11
• The origin of dust polarization in the Orion Bar
• Mapping Magnetic Fields in the Cold Dust at the Galactic Center

Cited by in corpus (7)

• Magnetic field morphology and evolution in the Central Molecular Zone and its effect on gas dynamics
• The JWST-NIRCam View of Sagittarius C. II. Evidence for Magnetically Dominated HII Regions in the CMZ
• SOFIA/HAWC+ Far-Infrared Polarimetric Large Area CMZ Exploration Survey. V. The Magnetic Field Strength and Morphology in the Sagittarius C Complex
• ALMA observations of massive clouds in the central molecular zone: slim filaments tracing parsec-scale shocks
• The Dust Polarisation and Magnetic Field Structure in the Centre of NGC253 with ALMA
• The SARAO MeerKAT Galactic Plane Survey filamentary source catalogue
• The Complex Magnetic Field of the Extreme Galactic Center: PRIMA Science Potential