Research

Hmm, one can predict the dynamics of galaxies only by the distribution of baryons...

Is there a fundamental acceleration scale in the gravitational systems? Then, there should be a transition regime...

Is the Universe indeed expanding, or it this just one interpretation of the data? If so, why its rate of stretching is unclear?

Can a gigantic Void be responsible for this apparent behavior?

Are there alternatives of the current standard paradigm of the Big-Bang Cosmology?

Find my ads/arXiv publications here: ads and arXiv

First 1-author publication - June 2025 - published in MNRAS!

On the initial condition of the νHDM cosmological model

The only cosmological model, based on MOND, with available structrure formation simulations.

Contribution to the CosmoVerse White paper - April 2025!

The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics

A colossal work on the future of Cosmology....

Accepted paper in MNRAS - March 2025!

Strong constraints on a sharp change in G as a solution to the Hubble tension

Cosmological Simulations

Milgromian Gravity

Astronomical Institute of Charles University, Prague - SPODYR group

Since Septermber 2021, I explore the Cosmology, the formation and evolution of large-scale structures and the behaviour of Galactic systems under the Generalised Gravity's law of Milgrom.

Although firstly the law was phrased as Modified Newtonian Dynamics, it was later called as Milgromian Dynamics or now simply known as MOND.

According to MOND, the mass discrepancy or the missing gravity problem derived from the observed rotation curves of galaxies and the Newtonian prediction is attributed to the shift of galactic dynamics. When a gravitationally bound system is experiencing low acceleration, then the force law changes and the Poisson equation becomes non-linear. Remarkably, one can predict how a galaxy is rotating, the possible encounters between them and the distributions of smaller galaxies around their host ones.

What I examine is the MOND Cosmology. Can MOND laws form galaxies as observed? The building blocks of the Universe are the main astronomical objects I study in order to probe the evolution of the Cosmos.

My Ph.D. supervisor is Prof. Pavel Kroupa.

Hold your ground, great discoveries (demonstrated by my simulations) are upon us!

The opt-νHDM model

Standard Expansion

Constant Expansion + Star Formation

nuHDM

Bohemian model

ΛCDM analysis

ESA's Gaia mission

Analyzing Radial and Rotation Velocities for Data Release 3

Royal Observatory of Belgium (ROB), Brussels, 2019 - DPAC + CU6

During the whole year of 2019, I had been based at ROB, working on the valuable Gaia data preparation, closely collaborating with Dr. Ronny Blomme, Dr. Yves Frémat and Dr. Alex Lobel. Having the stellar spectra, I was evaluating the final values of Radial and Rotation velocities of stars of our Milky Way Galaxy with respect to space telescope parameters.

Here you find the EDR3 + DR3 publications which I have contributed on.

Gaia Data Release 3: Hot-star radial velocities