activity
20202026
most citedA massive blow for CDM the high redshift, mass, and collision velocity of the interacting galaxy cluster El Gordo contradicts concordance cosmology

84 citations · 216 across the 9 of their papers we have counts for

collaborators

9 papers

astro-ph.GA2026

The tidal features of the classical Milky Way satellites: Expected in MOND but inconsistent with cold dark matter models

Elena Asencio, Indranil Banik, Pavel Kroupa

Most classical satellites of the Milky Way are known to display signs of tidal disturbance (e.g. tidal tails, substructures, and distorted shapes). This cannot be explained by the…

astro-ph.GA2026★ 2 cited

Baryonic mass budgets in the central regions of the Bullet Cluster and their consistency with strong lensing in MOND

Dong Zhang, Hosein Haghi, Elena Asencio +8

Strong lensing observations of the Bullet Cluster have traditionally been regarded as strong evidence for dark matter and a major challenge to Milgromian dynamics (MOND). The offse…

astro-ph.GA2025

Investigating the origin of the Milky Way streams. A revised look at their orbital pole distribution in light of precession effects

Elena Asencio, Pavel Kroupa, Ingo Thies

Stellar streams around the Milky Way (MW) can provide valuable insights into its history and substructure formation. Previous studies have suggested that several MW streams could h…

astro-ph.GA2024★ 9 cited

The Magellanic Clouds are very rare in the IllustrisTNG simulations

Moritz Haslbauer, Indranil Banik, Pavel Kroupa +2

The Large and Small Magellanic Cloud (LMC and SMC) form the closest interacting galactic system to the Milky Way, therewith providing a laboratory to test cosmological models in th…

astro-ph.CO2023★ 8 cited

The many tensions with dark-matter based models and implications on the nature of the Universe

Pavel Kroupa, Eda Gjergo, Elena Asencio +6

(Abridged) Fundamental tensions between observations and dark-matter based cosmological models have emerged. This updated review has two purposes: to explore new tensions that have…

astro-ph.CO2023★ 22 cited

The El Gordo galaxy cluster challenges ΛCDM for any plausible collision velocity

E. Asencio, I. Banik, P. Kroupa

El Gordo (ACT-CL J0102-4915) is an extraordinarily large and bright galaxy cluster collision. In a previous study, we found that El Gordo is in tension with the CDM stand…

astro-ph.GA2022★ 60 cited

The distribution and morphologies of Fornax Cluster dwarf galaxies suggest they lack dark matter

E. Asencio, I. Banik, S. Mieske +3

Due to their low surface brightness, dwarf galaxies are particularly susceptible to tidal forces. The expected degree of disturbance depends on the assumed gravity law and whether…

astro-ph.GA2021★ 31 cited

Barred spiral galaxies in modified gravity theories

Mahmood Roshan, Indranil Banik, Neda Ghafourian +4

When bars form within galaxy formation simulations in the standard cosmological context, dynamical friction with dark matter (DM) causes them to rotate rather slowly. However, almo…

astro-ph.CO2020★ 84 cited

A massive blow for CDM the high redshift, mass, and collision velocity of the interacting galaxy cluster El Gordo contradicts concordance cosmology

E. Asencio, I. Banik, P. Kroupa

El Gordo (ACT-CL J0102-4915) is an extremely massive galaxy cluster ( ) at redshift composed of two subclusters with mass r…