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

We report on high-dispersion optical spectroscopic observations of theBe/X-ray binary A0535+262/V725 Tau during the giant outburst inNovember/December 2009 and after it. The observed emission line profiles,reflecting the structure of the geometrically thin circumstellar envelope ofthe Be star (Be disk), show drastic variabilities and indicate the existence ofa warped component. The enhanced blue shoulder seen after periastron passageimplies the gas stream from a dense part of the Be disk to the neutron star.

Drastic Spectroscopic Variability of the Be/X-ray Binary A0535+262/V725 Tau during and after the 2009 Giant Outburst