Understanding the cosmic web: Unveiling the evolution of cosmic filaments with the MillenniumTNG simulation

A careful analysis of the filaments in the cosmic large-scale structure has revealed interesting new findings about the evolution and complexities of the cosmic web. While some filaments show a significant evolution – depending on their cosmic environment – global filament properties are preserved, which could be used in future cosmological studies. The MPA team also developed a new method to allow for rigorous calibration of the filament catalogues.

<span><span><span><span>Unveiling the Universe at the field level</span></span></span></span>

The distribution of galaxies on large, cosmological scales holds important clues on the nature of dark matter, the properties of dark energy and the origin of our Universe. Yet, optimally retrieving this information from observations is challenging. MPA researchers are developing a novel analysis approach, where they follow the evolution of cosmic structures through their entire formation history. Enabling a very detailed comparison between theoretical models and observational data, this approach will allow measuring key parameters of dark matter and dark energy very precisely. more

Maria Werhahn honoured with the Carl Ramsauer Prize

MPA postdoc Maria Werhahn has been awarded the Carl Ramsauer Prize by the Physikalische Gesellschaft zu Berlin for her doctoral thesis “Simulating Galaxy Evolution with Cosmic Rays: The Multi-Frequency View”. The award ceremony took place on 22 November 2023 at the Technical University of Berlin, where she also presented her work in a short lecture. more

Volker Springel becomes Vice President of the Astronomical Society

At its 2023 Annual Meeting, the German Astronomical Society elected Volker Springel, Director at the Max Planck Institute for Astrophysics as Vice President. more

SPICE connects stellar feedback in the first galaxies and cosmic reionisation

The first billion years saw the transformation of a cold neutral Universe to a hot and ionised one. This Epoch of Reionisation is thought to come about from stellar radiation from the first galaxies. Understanding the nature of the galaxies that drove reionisation remains a key question. Scientists at MPA have designed a novel suite of simulations to systematically understand how different modes of energy and mass injection from stars affect the first galaxies. According to these new models, subtle differences in the behaviour of stellar feedback drive profound differences in the morphologies of galaxies and the speed at which they ionise the universe. Combining these findings with the latest observations will help constrain feedback models in the first billion years of the Universe. more

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