activity
20152026
most citedA whirling plane of satellite galaxies around Centaurus A challenges cold dark matter cosmology

187 citations · 1.3k across the 37 of their papers we have counts for

collaborators
Showing 2019Show all

7 papers · 1 filter

astro-ph.GA2019★ 13 cited

Hunting ghosts: the iconic stellar stream(s) around NG5907 under scrutiny

Oliver Müller, Ana Vudragović, Michal Bílek

Stellar streams are regarded as crucial objects to test galaxy formation models, with their morphology tracing the underlying potentials and their occurrence tracking the assembly…

astro-ph.GA2019★ 82 cited

The dwarf galaxy satellite system of Centaurus A

Oliver Müller, Marina Rejkuba, Marcel S. Pawlowski +4

Dwarf galaxy satellite systems are essential probes to test models of structure formation, making it necessary to establish a census of dwarf galaxies outside of our own Local Grou…

astro-ph.GA2019★ 55 cited

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…

astro-ph.GA2019★ 15 cited

Discussing the first velocity dispersion profile of an ultra-diffuse galaxy in MOND

Michal Bílek, Oliver Müller, Benoit Famaey

Using Jeans modelling, we calculate the velocity dispersion profile of the ultra-diffuse galaxy (UDG) Dragonfly 44 in MOND. For the nominal mass-to-light ratio from the literature…

astro-ph.GA2019★ 42 cited

A tidal tale: detection of multiple stellar streams in the environment of NGC1052

Oliver Müller, R. Michael Rich, Javier Román +6

The possible existence of two dark matter free galaxies (NGC1052-DF2 and NGC1052-DF4) in the field of the early-type galaxy NGC1052 presents a challenge to theories of dwarf galaxy…

astro-ph.GA2019★ 91 cited

The ultra-diffuse galaxy NGC 1052-DF2 with MUSE: II. The population of DF2: stars, clusters and planetary nebulae

Jeremy Fensch, Remco F. J. van der Burg, Tereza Jerabkova +13

NGC 1052-DF2, an ultra diffuse galaxy (UDG), has been the subject of intense debate. Its alleged absence of dark matter, and the brightness and number excess of its globular cluste…

astro-ph.GA2019★ 36 cited

Predicted MOND velocity dispersions for a catalog of ultra-diffuse galaxies in group environments

Oliver Müller, Benoit Famaey, Hongsheng Zhao

The possibility that ultra-diffuse galaxies lacking dark matter has recently stimulated interest to check the validity of Modified Newton Dynamics (MOND) predictions on the scale o…