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Revisiting rotation measures from the Canadian Galactic Plane Survey: the magnetic field in the disk of the outer Galaxy

From National Research Council Canada

DOIResolve DOI: https://doi.org/10.3847/1538-4365/abe389
AuthorSearch for: ORCID identifier: https://orcid.org/0000-0002-7641-9946; Search for: ORCID identifier: https://orcid.org/0000-0003-4781-5701; Search for: 1ORCID identifier: https://orcid.org/0000-0002-2465-8937; Search for: 1ORCID identifier: https://orcid.org/0000-0001-5953-0100; Search for: 1ORCID identifier: https://orcid.org/0000-0003-1455-2546; Search for: ; Search for: ; Search for: 1; Search for: 1ORCID identifier: https://orcid.org/0000-0002-2280-7644; Search for: 1ORCID identifier: https://orcid.org/0000-0003-2469-1611; Search for: ORCID identifier: https://orcid.org/0000-0003-2391-8650; Search for:
Affiliation
  1. National Research Council of Canada. Herzberg Astronomy and Astrophysics
FormatText, Article
Subjectcatalogs; milky way magnetic fields; polarimetry
Abstract
Faraday rotation provides a valuable tracer of magnetic fields in the interstellar medium; catalogs of Faraday rotation measures provide key observations for studies of the Galactic magnetic field. We present a new catalog of rotation measures derived from the Canadian Galactic Plane Survey, covering a large region of the Galactic plane spanning 52° < l < 192°, −3° < b < 5°, along with northern and southern latitude extensions around l ≈ 105°. We have derived rotation measures for 2234 sources (4 of which are known pulsars), 75% of which have no previous measurements, over an area of approximately 1300 deg² . These new rotation measures increase the measurement density for this region of the Galactic plane by a factor of 2.
Publication date
PublisherIOP
American Astronomical Society
In
  • The Astrophysical Journal Supplement Series 253, no. 2, 48 (1 April 2021).
LanguageEnglish
Peer reviewedYes
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Record identifier0abbf5d4-9475-4f8b-9fa9-5201b9e542d5
Record created2023-04-24
Record modified2023-04-24
Date modified: