The cold dark-matter model successfully explains both the emergence and evolution of
cosmic structures on large scales and, when we include a cosmological constant, the …

Abstract The Galactic Center (GC) of the Milky Way, thanks to its proximity, allows to perform
astronomical observations that investigate physical phenomena at the edge of astrophysics …

We derive a new interior solution for stellar compact objects in\(f\mathcal {(R)}\) gravity
assuming a differential relation to constrain the Ricci curvature scalar. To this aim, we …

Energy conditions can play an important role in defining the cosmological evolution.
Specifically acceleration/deceleration of cosmic fluid, as well as the emergence of Big Rip …

In this work, wormholes, tunnel like structures introduced by Morris and Thorne (Am J Phys
56: 395, 1988), are explored within the framework of f (R) gravity. Using the shape function b …

Alternative gravity is nowadays an extremely important tool to address some persistent
observational issues, such as the dark sector of the universe. They can also be applied to …

In the present paper, the modeling of traversable wormholes, proposed by Morris and
Thorne [Am. J. Phys. 56, 395 (1988)], is performed within the f (R) gravity with particular …

Recent observation shows that general relativity (GR) is not valid in the strong regime. f (R)
gravity, where R is the Ricci scalar, is regarded to be a good candidate able to cure the …

Wormholes (WHs) are hypothetical topologically non‐trivial spacetime structures that can be
freely traversed by observers and connect two asymptotic regions or infinities. From the …

Motivated by recent proposals of possible wormhole existence in galactic halos, we analyze
the cosmological evolution of wormhole solutions in modified f (R) gravity. We construct a …