3 papers
astro-ph.CO2024
The state of the dark energy equation of state circa 2023
Luis A. Escamilla, William Giarè, Eleonora Di Valentino +2
We critically examine the state of current constraints on the dark energy (DE) equation of state (EoS) . Our study is motivated by the observation that, while broadly consistent…
astro-ph.HE2024
Evidence for 3XMM J185246.6+003317 as a massive magnetar with a low magnetic field
Rafael C. R. de Lima, Jonas P. Pereira, Jaziel G. Coelho +10
3XMM J185246.6+003317 is a transient magnetar located in the vicinity of the supernova remnant Kes\,79. So far, observations have only set upper limits to its surface magnetic fiel…
astro-ph.CO2024
Exploring Modified Gravity: Constraints on the and Parametrization with WMAP, ACT, and SPT
Uendert Andrade, Abraão J. S. Capistrano, Eleonora Di Valentino +1
The cosmic acceleration problem remains one of the most significant challenges in cosmology. One of the proposed solutions to this problem is the modification of gravity on large s…