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 the discovery of a systematic constant time lag between the X-rayand radio flares of the gamma-ray binary LSI +61 303, persistent over long,multi-year, time scale. Using the data of monitoring of the system by RXTE weshow that the orbital phase of X-ray flares from the source varies from$\phi_X\simeq 0.35$ to $\phi_X\simeq 0.75$ on the superorbital 4.6 yr timescale. Simultaneous radio observations show that periodic radio flares alwayslag the X-ray flare by $\Delta\phi_{X-R}\simeq 0.2$. We propose that theconstant phase lag corresponds to the time of flight of the high-energyparticle filled plasma blobs from inside the binary to the radio emissionregion at the distance ~10 times the binary separation distance. We put forwarda hypothesis that the X-ray bursts correspond to the moments of formation ofplasma blobs inside the binary system.

Superorbital modulation of X-ray emission from gamma-ray binary LSI +61 303