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 …

Bosonic ultralight dark matter (ULDM) would form cored density distributions at the center of
galaxies. These cores, seen in numerical simulations, admit analytic description as the …

Whereas cold dark matter (CDM) simulations predict central dark matter cusps with densities
that diverge as ρ (r)∼ 1/r, observations often indicate constant-density cores with finite …

In this paper, we present new generalized wormhole (WH) solutions within the context of f
(R) gravity. Specifically, we focus on f (R) gravitational theories formulated in the metric …

Dark matter is currently one of the main mysteries of the Universe. There is much strong
indirect evidence that supports its existence, but there is yet no sign of a direct detection …

Aims. In this paper, we carry out a phenomenological investigation of the viability of fuzzy
dark matter, which is composed of coherent waves of non-interacting ultralight axions with a …

Recently, there has been much interest in light dark matter, especially ultralight axions, as
they may provide a solution to the core-cusp problem at the center of galaxies. Since very …

In this work, we extend the model proposed by White (2022) concerning the post-collapse
evolution of density peaks while considering the role of angular momentum. On a time scale …

We perform maximum likelihood estimates for single and double flavor ultralight dark matter
(ULDM) models using the Spitzer Photometry and Accurate Rotation Curves database …

We study the properties of Bose-Einstein Condensate (BEC) systems consisting of two
scalars, focusing on both the case where the BEC is stellar scale as well as the case when it …