The Stellar Populations and Dynamics Research Group
(The SPODYR Group)
Golden Webinar: "From Believe to Realism and Beauty: Given the Non-Existence of Dark Matter, how do I navigate amongst the Stars and between Galaxies?"
April 9th, 2021
Supermassive black holes: monsters in the early Universe
Oxford University Press Blog, Nov.3rd, 2020
The nature of very high redshift quasars and the rapid formation of super-massive black holes (SMBHs)
Very high redshift quasars and the rapid emergence of
super-massive black holes
The enduring mystery of how galaxies grow up
Oxford University Press Blog, Sept.28th, 2020
Constraints on the star formation histories of
galaxies in the Local Cosmological Volume
A travel report for the Erasmus+ programme led by Petr Kabath at
Onrejov Observatory:
La Palma, three events in the Orion Nebula Cluster and the Corona Crisis
The citizens of my birth of town, Jindrichuv Hradec , awarded me a Crystal Rose on
Recent Publications:
The dynamics of spatially confined oscillations
Stadtler, Kroupa, Schmid
(CaJPh, 2021)
How many explosions does one need? -- Quantifying supernovae in globular clusters from iron abundance spreads
Wirth, Jerabkova, Yan et al.
(MNRAS, 2021)
Evolution of globular-cluster systems of ultra-diffuse galaxies due to dynamical friction in MOND gravity
Bilek, Zhao, Famaey et al.
(MNRAS, 2021)
Downsizing revised: Star formation timescales for elliptical galaxies with an environment-dependent IMF and number of SNIa
Yan, Jerabkova, Kroupa
(A&A, 2021)
Fast galaxy bars continue to challenge standard cosmology
Roshan, Ghafourian et al.
(MNRAS, 2021, submitted)
A discontinuity in the luminosity-mass relation and fluctuations in the evolutionary tracks of low-mass and low-metallicity stars at the Gaia M-dwarf gap
Mansfield & Kroupa
(A&A, 2021)
Do ultra compact dwarf galaxies form monolithically or as merged star cluster complexes?
Mahani, Zonoozi, Haghi, Jerabkova, Kroupa, Mieske
(MNRAS, 2021)
IMF-induced intrinsic uncertainties on measuring galaxy distances based on the number of giant stars: the case of the ultra-diffuse galaxy NGC 1052-DF2
Zonoozi, Haghi, Kroupa
(MNRAS, 2021)
On the absence of backsplash analogues to NGC 3109 in the LCDM framework
Banik, Haslbauer, Pawlowski, Famaey, Kroupa
(MNRAS, 2021)
Barred spiral galaxies in modified gravity theories
Roshan, Banik, Ghafourian, Thies, Famaey, Asencio, Kroupa
(MNRAS, 2021)
3D Morphology of Open Clusters in the Solar Neighborhood with Gaia EDR3: its Relation to Cluster Dynamics
Pang, Li, Yu, Tang, Dinnbier, Kroupa, Pasquato, Kouwenhoven
(ApJ, 2021)
The Phantom of RAMSES user guide for galaxy simulations using Milgromian and Newtonian gravity
Nagesh, Banik, Thies, Kroupa, Famaey, Wittenburg, Parziale, Haslbauer
(Canadian Journal of Physics, 2021)
A massive blow for LCDM - the high redshift, mass, and collision
velocity of the interacting galaxy
cluster El Gordo contradicts concordance cosmology
Asencio, Banik, Kroupa (MNRAS, 2021)
The Global Stability of M33 in MOND
Banik, Thies, Famaey, Candlish, Kroupa, Ibata (ApJ, 2020)
The Lifetimes of Star Clusters Born with a Top-heavy IMF
Haghi, Safaei, Zonoozi, Kroupa (ApJ, 2020)
The KBC void and Hubble tension contradict LCDM on a Gpc scale - Milgromian dynamics as a possible solution
Haslbauer, Banik, Kroupa (MNRAS, 2020)
Very high redshift quasars and the rapid emergence of super-massive black holes
Kroupa, Subr, Jerabkova, Wang (MNRAS, 2020)
Constraints on the star formation histories of galaxies in the Local Cosmological Volume
Kroupa, Haslbauer, Banik, Nagesh, Pflamm-Altenburg (MNRAS, 2020)
Tidal tails of open star clusters as probes to early gas expulsion I: A semi-analytic model
Dinnbier, Kroupa (A&A, 2020)
Tidal tails of open star clusters as probes to early gas expulsion II: Predictions for Gaia
Dinnbier, Kroupa (A&A, 2020)
The formation of exponential disk galaxies in MOND
Wittenburg, Kroupa & Famaey (ApJ, 2020)
The failure of testing for cosmic opacity via the distance-duality relation
Vavrycuk, Kroupa (MNRAS, 2020)
Scale-invariant dynamics in the Solar system
Banik, Kroupa (MNRAS, 2020)
Solar System limits on gravitational dipoles
Banik, Kroupa (MNRAS, 2020)
2015: Phantom of Ramses (PoR) code for galaxy formation and evolution in
Milgromian dynamics/MOND:
Phantom of Ramses (PoR) code is a
patch to RAMSES . By default the patch comes with the
RAMSES code whenever it is downloaded.
The Phantom of RAMSES user guide for galaxy simulations using Milgromian and Newtonian gravity
Nagesh, Banik, Thies, Kroupa, Famaey, Wittenburg, Parziale, Haslbauer
(Canadian Journal of Physics, 2021)
Go to Main 
