SOFIA/HAWC+ Far-infrared Polarimetric Large Area CMZ Exploration Survey. II. Detection of a Magnetized Dust Ring in the Galactic Center

Butterfield, Natalie O.; Guerra, Jordan A.; Chuss, David T.; Morris, Mark R.; Paré, Dylan M.; Wollack, Edward J.; Costa, Allison H.; Hankins, Matthew J.; Mackey, Scott C.; Staguhn, Johannes; Zweibel, Ellen

doi:10.3847/1538-4357/ad402c

i

SOFIA/HAWC+ Far-infrared Polarimetric Large Area CMZ Exploration Survey. II. Detection of a Magnetized Dust Ring in the Galactic Center

2024
By Butterfield, Natalie O. ; Guerra, Jordan A. ; Chuss, David T. ; ...

Details

Journal Title:

The Astrophysical Journal
Personal Author:

Butterfield, Natalie O. ; Guerra, Jordan A. ; Chuss, David T. ; Morris, Mark R. ; Paré, Dylan M. ; Wollack, Edward J. ; Costa, Allison H. ; Hankins, Matthew J. ; Mackey, Scott C. ; Staguhn, Johannes ; Zweibel, Ellen
NOAA Program & Office:

CIRES (Cooperative Institute for Research in Environmental Sciences)
Description:

We present the detection of a magnetized dust ring (M0.8–0.2) in the central molecular zone (CMZ) of the Galactic center. The results presented in this paper utilize the first data release of the Far-Infrared Polarimetric Large Area CMZ Emission (FIREPLACE) survey (i.e., Paper I of this series). The FIREPLACE survey is a 214 μm polarimetric survey of the Galactic center using the SOFIA/HAWC+ telescope. The M0.8–0.2 ring is a region of gas and dust that has a circular morphology with a central depression. The dust polarization in the M0.8–0.2 ring implies a curved magnetic field that traces the ring-like structure of the cloud. We posit an interpretation in which an expanding shell compresses and concentrates the ambient gas and magnetic field. We argue that this compression results in strengthening of the magnetic field, as we infer from the observations toward the interior of the ring.
Source:

The Astrophysical Journal, 968(2), 63
DOI:

https://doi.org/10.3847/1538-4357/ad402c
ISSN:

0004-637X ; 1538-4357
Format:

pdf
Publisher:

American Astronomical Society
Document Type:

Journal Article
License:

https://creativecommons.org/licenses/by/4.0/
Rights Information:

CC BY
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Library
Main Document Checksum:

urn:sha-512:2d26001207c186f82aee8edfe33389b3fa9dce1c7fac3d9053f282057e40204b988ecec4d1b7e2a907365bb4b7aa21051602502a0e9a28403a8922c0b5bbf972
Download URL:

https://repository.library.noaa.gov/view/noaa/69697/noaa_69697_DS1.pdf
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[PDF - 8.16 MB ]

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