English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We study the magnetic field structures in six giant filaments associated withthe spiral arms of the Milky Way by applying the Velocity Gradient technique(VGT) to the 13CO spectroscopic data from GRS, Fugin, and SEDIGSM surveys.Compared to dust polarized emission, the VGT allows us to separate theforeground and background using the velocity information, from which theorientation of the magnetic field can be reliably determined. We find that inmost cases, the magnetic fields stay aligned with the filament bodies, whichare parallel to the disk midplane. Among these, G29, G47, and G51 exhibitsmooth magnetic fields, and G24, G339, and G349 exhibit discontinuities. Thefact that most filaments have magnetic fields that stay aligned with theGalactic disk midplane suggests that Galactic shear can be responsible forshaping the filaments. The fact that the magnetic field can stay regular at theresolution of our analysis (<= 10 pc) where the turbulence crossing time isshort compared to the shear time suggests that turbulent motion can noteffectively disrupt the regular orientation of the magnetic field. Thediscontinuities found in some filaments can be caused by processes includingfilament reassembly, gravitational collapse, and stellar feedback.

Magnetic Fields in Giant Filaments Probed by the Velocity Gradient Technique: Regular Magnetic Field interrupted by Magnetization Gaps