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 Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Variations in the spatial configuration of the interstellar magnetic field(ISMF) near the Sun can be constrained by comparing the ISMF direction at theheliosphere found from the Interstellar Boundary Explorer spacecraft (IBEX)observations of a 'Ribbon' of energetic neutral atoms (ENAs), with the ISMFdirection derived from optical polarization data for stars within ~40 pc. Usinginterstellar polarization observations towards ~30 nearby stars within 90 degof the heliosphere nose, we find that the best fits to the polarizationposition angles are obtained for a magnetic pole directed towards eclipticcoordinates of lambda, beta 263 deg, 37 deg (or galactic coordinates of L,B 38deg, 23deg), with uncertainties of +/- 35 deg, based on the broad minimum ofthe best fits and the range of data quality. This magnetic pole is 33 deg fromthe magnetic pole that is defined by the center of the arc of the ENA Ribbon.The IBEX ENA ribbon is seen in sightlines that are perpendicular to the ISMF asit drapes over the heliosphere. The similarity of the polarization and Ribbondirections for the local ISMF suggest that the local field is coherent overscale sizes of tens of parsecs. The ISMF vector direction is nearlyperpendicular to the flow of local ISM through the local standard of rest,supporting a possible local ISM origin related to an evolved expandingmagnetized shell. The local ISMF direction is found to have a curious geometrywith respect to the cosmic microwave background dipole moment.

Comparisons of the Interstellar Magnetic Field Directions obtained from the IBEX Ribbon and Interstellar Polarizations