collaborators

7 papers

astro-ph.GA2026

From Voids to Clusters: Mergers and Evolutionary Pathways of Star-Forming and Quenched Low-Mass Galaxies

Mohammad Reza Shojaei, Saeed Tavasoli, Parsa Ghafour

The evolution of low-mass galaxies is shaped by both internal processes and environmental factors, yet the role of environment and mergers in regulating their growth and star forma…

astro-ph.CO2026

Evolution of Cosmic Voids: Structure, Galaxies, and Dynamics

Saeed Tavasoli

We investigate the structural, photometric, and dynamical evolution of cosmic voids and their galaxy populations from to the present, focusing on void size as a key evolut…

astro-ph.GA2026

Cosmic Environment as the Primary Driver of Dwarf Satellite Statistics

Saeed Tavasoli, Parsa Ghafour

Context: Satellite dwarf galaxies provide key constraints on galaxy formation and evolution, since their abundance and spatial distribution reflect both the host properties and the…

astro-ph.IM2025

VEGA: Voids idEntification using Genetic Algorithm

P. Ghafour, S. Tavasoli, M. R. Shojaei

Cosmic voids are large, nearly empty regions that lie between the web of galaxies, filaments and walls, and are recognized for their extensive applications in the field of cosmolog…

astro-ph.CO2025

The Filament Rift: CDM's Structural Challenge Against Observation

Saeed Tavasoli, Parsa Ghafour

This study presents the first extended comparison of cosmic filaments identified in SDSS DR10 observations () and the IllustrisTNG300-1 CDM simulation (), util…

astro-ph.CO2025

GrAviPaSt's Lens to the Past: Unveiling the Evolution of Filamentary Structures

Parsa Ghafour, Saeed Tavasoli

This paper examines the evolution of cosmic filaments across redshifts 1, 0.5, and 0 using the IllustrisTNG100-1 magneto-hydrodynamical simulation. To achieve this, we introduce Gr…