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

Using TESS photometry and Rozhen spectra of the Be/  γ  ‐ray binaries MWC 148 and MWC 656, we estimate the projected rotational velocity (  v  sin  i  ), rotational period ( P  rot ), radius ( R  1 ), and inclination (  i  ) of the mass donor. For MWC 148, we derive  P  rot  = 1.10 ± 0.03 day,  R  1  = 9.2 ± 0.05  R  sun ,   i  = 40° ± 2° , and   v  sin  i  = 272 ± 5  km s −1 . For MWC 656, we obtain  P  rot  = 1.12 ± 0.03 day,  R  1 = 8.8 ± 0.5  R  sun ,   i  = 52° ± 3° , and   v  sin  i  = 313 ± 3  km s −1 . For MWC 656, we also find that the rotation of the mass donor is coplanar with the orbital plane.

Radius, rotational period, and inclination of the Be stars in the Be/gamma‐ray binaries MWC 148 and MWC 656