5 papers
Probing dark energy evolution with Quaia quasars through the integrated Sachs-Wolfe effect
M. Ghodsi Yengejeh, J. R. Bermejo-Climent, A. Kovács +2
The Integrated Sachs--Wolfe (ISW) effect probes the late-time evolution of gravitational potentials and provides a complementary test of the nature of dark energy. We investigate w…
Euclid: Measuring the intrinsic alignment of galaxies around cosmic voids in the \Euclid Flagship simulation\
P. Vielzeuf, M. -C. Cousinou, A. Pisani +149
We present a methodology to measure the intrinsic alignment (IA) signal of galaxies in the vicinity of cosmic voids using the \Euclid-like Flagship cosmological simulation from the…
Revisiting the angular size-redshift cosmological test with milliarcsecond radio structures in active galactic nuclei
Mina Ghodsi Yengejeh, Tatiana A. Koryukova, Leonid I. Gurvits +5
VLBI measurements of the sizes of compact extragalactic radio sources, jetted active galactic nuclei, provide data for probing the angular size--redshift relation, offering a compl…
Integrated Sachs-Wolfe maps from the Gower Street CDM simulations
Mina Ghodsi Yengejeh, András Kovács, István Szapudi +1
The late-time linear Integrated Sachs-Wolfe (ISW) effect directly probes the dynamics of cosmic acceleration and the nature of dark energy. Detecting these weak, secondary temperat…
A Multi-Probe ISW Study of Dark Energy Models with Negative Energy Density: Galaxy Correlations, Lensing Bispectrum, and Planck ISW-Lensing Likelihood
Payam Ghafari, Mahdi Najafi, Mina Ghodsi Yengejeh +3
We investigate the late-time imprints of three dark energy (DE) models, namely, the Chevallier-Polarski-Linder (CPL) parametrization, CDM, and an Omnipotent DE model, o…