Archive for Volker Springel

Cosmology Talks: Volker Springel on GADGET-4

Posted in The Universe and Stuff with tags , , , , , , , on May 18, 2021 by telescoper

It’s time I shared another one of those interesting cosmology talks on the Youtube channel curated by Shaun Hotchkiss. This channel features technical talks rather than popular expositions so it won’t be everyone’s cup of tea but for those seriously interested in cosmology at a research level they should prove interesting.

In this talk from a couple of months ago  Volker Springel discusses Gadget-4 which is a parallel computational code that combines cosmological N-body and SPH code and is intended for simulations of cosmic structure formation and calculations relevant for galaxy evolution and galactic dynamics.

The predecessor of GADGET-2 is probably the most used computational code in cosmology; this talk discusses what new ideas are implemented in GADGET-4 to improve on the earlier version and what new features it has.  Volker also explains what happened to GADGET-3!

The paper describing Gadget-4 can be found here.

 

Gruber Prize 2020: Volker Springel & Lars Hernquist

Posted in Open Access, The Universe and Stuff with tags , , , , , on May 8, 2020 by telescoper

I’m delighted to be able to pass on the news released yesterday that the 2020 Gruber Prize for Cosmology has been awarded to Lars Hernquist (left) and Volker Springel (right) for their work on numerical simulations.

The citation reads:

The Gruber Foundation is pleased to present the 2020 Cosmology Prize to Lars Hernquist and Volker Springel for their transformative work on structure formation in the universe, and development of numerical algorithms and community codes further used by many other researchers to significantly advance the field. The contributions of Hernquist and Springel have led to profound insights spanning billions of years of cosmic evolution, including simulations of the growth of early density fluctuations through to present-day galaxies, the influence of galaxy mergers on star formation, and the close coevolution of supermassive black holes with their host galaxies.

I’ll just add that as well as being enormously influential in purely scientific terms both these scientists have contributed to the culture of open science through making codes (such as GADGET) freely available to the community.

Heartiest congratulations to Volker Springel and Lars Hernquist on their very well deserved award.