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Stellar Astrophysics Centre:

Research on the Sun, stars

and extra-solar planets


Simulation of wind erosion on Mars. The quartz ampoule contains particles of olivine basalt and a Mars-like atmosphere. By shaking the ampoule, the researchers simulate wind-generated saltation, ie. that the wind causes the sand grains to make short jumps over the surface. The friction of the particles creates electrical charges, and the yellow star illustrates that an argon atom has lost an electron. The small electrical charges cause the particles to glow slightly, as illustrated in the four pictures to the right. Graphics: Mars Simulation Laboratory, AU

02.07.2019 | Institut for Fysik og Astronomi, Offentligheden / Pressen, Medarbejdere, Studerende

Methane vanishing on Mars: Aarhus researchers propose new mechanism as an explanation

The processes behind the release and consumption of methane on Mars have been discussed since methane was measured for the first time for approx. 15 years ago. Now, an interdisciplinary research group from Aarhus University has proposed a previously overlooked physical-chemical process that can explain methane's consumption.

Looking inside a rapidly oscillating Ap star.The diversity of physical phenomena taking place in their outer layers, makes roAp stars ideal testbeds to the modelling of stellar physics. Credit: Victoria Antoci (Stellar Astrophysics Centre, Aarhus University)

03.06.2019 | Medarbejdere, Studerende, Offentligheden / Pressen

Fastest known roAp pulsator in recent MNRAS paper

SAC's Victoria Antoci is coauthor of a recent paper on the first observations by TESS of Ap stars; some of them rapidly oscillating roAp pulsators.

06.05.2019 | Medarbejdere, Offentligheden / Pressen, Studerende

Satellite design workshop

Help design small satellite missions for exobiological studies

Googlemaps image of the Mount Kent Observatory - home of the next SONG node

18.04.2019 | Offentligheden / Pressen, Medarbejdere, Studerende

The next SONG-telescope hits the news in Australia

SONG-manager Mads Fredslund Andersen was interviewed for one of the top Australian media and here is the fine result.

14.04.2019 | Medarbejdere, Offentligheden / Pressen, Studerende

Victor Silva Aguirre appointed associated professor at the Departmend of Physics and Astronomy, Aarhus

The study of Galactic Archaeology to be continued.

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