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

The presence of massive gravitons in the field of massive gravity isconsidered as an important factor in investigating the structure of compactobjects. Hence, we are encouraged to study the dark energy star structure inthe Vegh's massive gravity. We consider that the equation of state governingthe inner spacetime of the star is the extended Chaplygin gas, and then usingthis equation of state, we numerically solve the Tolman-Oppenheimer-Volkoff(TOV) equation in massive gravity. In the following, assuming different valuesof free parameters defined in massive gravity, we calculate the properties ofdark energy star such as radial pressure, transverse pressure, anisotropyparameter, and other characteristics. Then, after obtaining the maximum massand its corresponding radius, we compute redshift and compactness. The obtainedresults show that for this model of dark energy star, the maximum mass and itscorresponding radius depend on the massive gravity's free parameters andanisotropy parameter. These results are consistent with the observational data,and cover the lower mass gap. We also demonstrate that all energy conditionsare satisfied for this model, and in the presence of anisotropy, the darkenergy star is potentially unstable.

Effect of massive graviton on dark energy star structure