145 citations · 1.4k across the 46 of their papers we have counts for
8 papers · 1 filter
The Star Formation History and Dynamics of the Ultra-diffuse Galaxy Dragonfly 44 in MOND and MOG
Hosein Haghi, Vahid Amiri, Akram Hasani Zonoozi +3
The observed line-of-sight velocity dispersion of the ultra diffuse galaxy Dragonfly 44 (DF44) requires a Newtonian dynamical mass-to-light ratio of $M_{dyn}/L_I=26^{+7}_…
The ultra-diffuse dwarf galaxies NGC 1052-DF2 and 1052-DF4 are in conflict with standard cosmology
Moritz Haslbauer, Indranil Banik, Pavel Kroupa +1
Recently van Dokkum et al. (2018b) reported that the galaxy NGC 1052-DF2 (DF2) lacks dark matter if located at Mpc from Earth. In contrast, DF2 is a dark-matter-dominated dwar…
Effect of the Solar dark matter wake on planets
Indranil Banik, Pavel Kroupa
The Galaxy is conventionally thought to be surrounded by a massive dark matter (DM) halo. As the Sun goes through this halo, it excites a DM wake behind it. This local asymmetry in…
Testing gravity with interstellar precursor missions
Indranil Banik, Pavel Kroupa
We consider how the trajectory of an interstellar precursor mission would be affected by the gravity of the Sun in Newtonian and Milgromian dynamics (MOND). The Solar gravity is ${…
Directly testing gravity with Proxima Centauri
Indranil Banik, Pavel Kroupa
The wide binary orbit of Proxima Centauri around Centauri A and B differs significantly between Newtonian and Milgromian dynamics (MOND). By combining previous calculations of…
A new formulation of the external field effect in MOND and numerical simulations of ultra-diffuse dwarf galaxies application to NGC 1052-DF2 and NGC 1052-DF4
Hosein Haghi, Pavel Kroupa, Indranil Banik +7
The ultra-diffuse dwarf galaxy NGC 1052-DF2 (DF2) has ten (eleven) measured globular clusters (GCs) with a line-of-sight velocity dispersion of km/s ($σ=10.6…
Galaxies lacking dark matter in the Illustris simulation
Moritz Haslbauer, Joerg Dabringhausen, Pavel Kroupa +2
(Abridged) Any viable cosmological model in which galaxies interact predicts the existence of primordial and tidal dwarf galaxies (TDGs). In particular, in the standard model of co…
A new line on the wide binary test of gravity
Indranil Banik
The relative velocity distribution of wide binary (WB) stars is sensitive to the law of gravity at the low accelerations typical of galactic outskirts. I consider the feasibility o…