145 citations · 1.4k across the 46 of their papers we have counts for
46 papers
The redshift dependence of the inferred in a local void solution to the Hubble tension
Sergij Mazurenko, Indranil Banik, Pavel Kroupa
Galaxy number counts suggest that we are located within the Gpc-scale KBC void. The Hubble tension might arise due to gravitationally driven outflow from this void, as explored in…
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…
A simultaneous solution to the Hubble tension and observed bulk flow within 250 Mpc
Sergij Mazurenko, Indranil Banik, Pavel Kroupa +1
The cold dark matter (CDM) standard cosmological model is in severe tension with several cosmological observations. Foremost is the Hubble tension, which exceeds confid…
Strong constraints on the gravitational law from DR3 wide binaries
Indranil Banik, Charalambos Pittordis, Will Sutherland +4
We test Milgromian dynamics (MOND) using wide binary stars (WBs) with separations of kAU. Locally, the WB orbital velocity in MOND should exceed the Newtonian prediction by…
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…
Hydrodynamical structure formation in Milgromian cosmology
Nils Wittenburg, Pavel Kroupa, Indranil Banik +2
We present the first hydrodynamical cosmological simulations in the HDM framework based on Milgromian dynamics (MOND) with light (11~eV) sterile neutrinos. HDM can explain th…
Simulations of star forming main sequence galaxies in Milgromian gravity
Srikanth T. Nagesh, Pavel Kroupa, Indranil Banik +6
We conduct hydrodynamical MOND simulations of isolated disc galaxies over the stellar mass range using the adaptive mesh refinement code \texts…
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…
Overestimated inclinations of Milgromian disc galaxies: the case of the ultradiffuse galaxy AGC 114905
Indranil Banik, Srikanth Togere Nagesh, Hosein Haghi +2
We present hydrodynamical star-forming simulations in the Milgromian dynamics (MOND) framework of a gas-rich disc galaxy with properties similar to AGC 114905, which has recently b…
3D hydrodynamic simulations for the formation of the Local Group satellite planes
Indranil Banik, Ingo Thies, Roy Truelove +5
The existence of mutually correlated thin and rotating planes of satellite galaxies around both the Milky Way (MW) and Andromeda (M31) calls for an explanation. Previous work in Mi…
The High Fraction of Thin Disk Galaxies Continues to Challenge ΛCDM Cosmology
Moritz Haslbauer, Indranil Banik, Pavel Kroupa +2
Any viable cosmological framework has to match the observed proportion of early- and late-type galaxies. In this contribution, we focus on the distribution of galaxy morphological…
From galactic bars to the Hubble tension: weighing up the astrophysical evidence for Milgromian gravity
Indranil Banik, Hongsheng Zhao
Astronomical observations reveal a major deficiency in our understanding of physics the detectable mass is insufficient to explain the observed motions in a huge variety of sys…
Detailed numerical implementation of the wide binary test
Indranil Banik, Charalambos Pittordis, Will Sutherland
The observed flat rotation curves of galaxies are among a number of astrophysical phenomena which require a larger acceleration than can be provided by the Newtonian gravity of the…
The Kennicutt-Schmidt law and the main sequence of galaxies in Newtonian and Milgromian dynamics
Akram Hasani Zonoozi, Patrick Lieberz, Indranil Banik +2
The Kennicutt-Schmidt law is an empirical relation between the star formation rate surface density () and the gas surface density () in disc galaxies. The relatio…
Fast galaxy bars continue to challenge standard cosmology
Mahmood Roshan, Neda Ghafourian, Tahere Kashfi +5
Many observed disc galaxies harbour a central bar. In the standard cosmological paradigm, galactic bars should be slowed down by dynamical friction from the dark matter halo. This…
On the absence of backsplash analogues to NGC 3109 in the CDM framework
Indranil Banik, Moritz Haslbauer, Marcel S. Pawlowski +2
The dwarf galaxy NGC 3109 is receding 105 km/s faster than expected in a CDM timing argument analysis of the Local Group and external galaxy groups within 8 Mpc (Banik \& Zhao 2…
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…
The Phantom of RAMSES user guide for galaxy simulations using Milgromian and Newtonian gravity
Srikanth T. Nagesh, Indranil Banik, Ingo Thies +5
This document describes the general process of setting up, running, and analysing disc galaxy simulations using the freely available program Phantom of RAMSES (PoR). This implement…
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…
The global stability of M33 in MOND
Indranil Banik, Ingo Thies, Graeme Candlish +3
The dynamical stability of disk galaxies is sensitive to whether their anomalous rotation curves are caused by dark matter halos or Milgromian Dynamics (MOND). We investigate this…
The KBC void and Hubble tension contradict CDM on a Gpc scale Milgromian dynamics as a possible solution
Moritz Haslbauer, Indranil Banik, Pavel Kroupa
The KBC void is a local underdensity with the observed relative density contrast between 40 and 300 Mpc around the Local Group. If mass is con…
Constraints on the star formation histories of galaxies in the Local Cosmological Volume
Pavel Kroupa, Moritz Haslbauer, Indranil Banik +2
The majority of galaxies with current star-formation rates (SFRs), SFRo >= 10^-3 Msun/yr, in the Local Cosmological Volume where observations should be reliable, have the property…
Scale-invariant dynamics in the Solar System
Indranil Banik, Pavel Kroupa
The covariant scale-invariant dynamics (SID) theory has recently been proposed as a possible explanation for the observed dynamical discrepancies in galaxies (Maeder & Gueorguiev 2…
Solar System limits on gravitational dipoles
Indranil Banik, Pavel Kroupa
The gravitational dipole theory of Hadjukovic (2010) is based on the hypothesis that antimatter has a negative gravitational mass and thus falls upwards on Earth. Astrophysically,…