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

Within the context of the collaboration "B fields in OB stars (BOB)", we usedthe FORS2 low-resolution spectropolarimeter to search for a magnetic field in50 massive stars, including two reference magnetic massive stars. Because ofthe many controversies of magnetic field detections obtained with the FORSinstruments, we derived the magnetic field values with two completelyindependent reduction and analysis pipelines. We compare and discuss theresults obtained from the two pipelines. We obtained a general good agreement,indicating that most of the discrepancies on magnetic field detections reportedin the literature are caused by the interpretation of the significance of theresults (i.e., 3-4 sigma detections considered as genuine, or not), instead ofby significant differences in the derived magnetic field values. By combiningour results with past FORS1 measurements of HD46328, we improve the estimate ofthe stellar rotation period, obtaining P = 2.17950+/-0.00009 days. ForHD125823, our FORS2 measurements do not fit the available magnetic field model,based on magnetic field values obtained 30 years ago. We repeatedly detect amagnetic field for the O9.7V star HD54879, the HD164492C massive binary, andthe He-rich star CPD -57 3509. We obtain a magnetic field detection rate of6+/-4%, while by considering only the apparently slow rotators we derive adetection rate of 8+/-5%, both comparable with what was previously reported byother similar surveys. We are left with the intriguing result that, althoughthe large majority of magnetic massive stars is rotating slowly, our detectionrate is not a strong function of the stellar rotational velocity.

B fields in OB stars (BOB): low-resolution FORS2 spectropolarimetry of the first sample of 50 massive stars