Welcome to AIfA!
Welcome to the AIfA! The Argelander-Institut für Astronomie (AIfA) is an
academic, research and educational institute that is part of the
Department of Physics and Astronomy at the University of Bonn, Germany.
We conduct cutting-edge research over a broad range of theoretical and
observational topics from stars to cosmology, as you can see from our
Research page. Many national and international collaborations
have partners in the AIfA, for example we have a close relationship with
our neighbour, the Max-Planck Institut fuer Radioastronomie (MPIfR).
News
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Ausstellung "Argelanders Erben"
14.04.2016Sonderausstellung im Universitätsmuseum Bonn
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In search of dark energy
An international consortium of astrophysicists is currently measuring the three-dimensional structure of the Universe by means of an X-ray satellite. Among many exciting prospects, the project will provide new insights into the nature of dark energy. Dark energy is thought to cause the Universe to expand at an ever faster rate. On December 15th, a series of 13 articles will appear in the ’Astronomy and Astrophysics’ journal in which the team presents their first results. The X-ray data processing was performed in Bonn.
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Das bislang schärfste Bild der Milchstraße
Wissenschaftler der Universität Bonn und des Max-Planck-Instituts für Radiostronomie (MPIfR) haben mit bislang unerreichter Genauigkeit den Nordhimmel durchmustert. Mit dem Radioteleskop Effelsberg in der Eifel zeichneten sie die Spektrallinie des atomaren Wasserstoffs auf, der die räumliche Verteilung der Materie in der Milchstraße widerspiegelt. Der „Effelsberg-Bonn HI Survey“ (EBHIS) bildet die Grundla
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Discovery of one of the longest X-ray tails
The interaction processes in galaxy clusters between the hot ionized gas (ICM) and the member galaxies are of crucial importance to understand the dynamics in galaxy clusters, the chemical enrichment processes, and the validity of their hydrostatic mass estimates. Our very recent discovery of an X-ray tail in the galaxy cluster Zwicky 8338 shows for the first time a gas stripping scenario which removed completely the X-ray luminous gas from the host galaxy. Furthermore, it is one of the longest galaxy-associated X-ray tails known and exhibits an extraordinarily high luminosity.
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Totale Mondfinsternis - auch in Bonn zu sehen
Am Montag, den 28. September 2015 findet eine totale Mondfinsternis statt, bei der der Durchgang des Mondes durch den Kernschatten der Erde vollständig zu beobachten sein wird. Bei einer Mondfinsternis schiebt sich der Mond in den Schatten der Erde. Er wird dann nur noch von Sonnenlicht, welches durch die Erdatmosphäre in den Schattenkegel gebrochenen wird, angestrahlt.
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