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?
First 1-author publication - June 2025 - published in MNRAS!
The only cosmological model, based on MOND, with available structrure formation simulations.
Contribution to the CosmoVerse White paper - April 2025!
A colossal work on the future of Cosmology....
Accepted paper in MNRAS - March 2025!
More on the Hubble tension...
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
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: Reflectance spectra of Solar System small bodies
Gaia Data Release 3: Mapping the asymmetric disc of the Milky Way
Gaia Data Release 3: Stellar multipilicity, a teaser for the hidden treasure
Gaia Data Release 3: A Golden Sample of Astrophysical Parameters
Gaia Data Release 3 Properties and validation of the radial velocities
Gaia Data Release 3: Pulsations in main sequence OBAF-type stars
Gaia Early Data Release 3: Updated radial velocities from Gaia DR2
Gaia Early Data Release 3: The Gaia Catalogue of Nearby Stars
Gaia Early Data Release 3: Acceleration of the solar system from Gaia astrometry
Gaia Early Data Release 3: Structure and properties of the Magellanic Clouds
Gaia Early Data Release 3: Summary of the contents and survey properties