June 2020: WALLABY -- An SKA Pathfinder HI Survey

April 2020: HI filaments are cold and associated with dark molecular gas. HI4PI based estimates of the local diffuse CO-dark H2 distribution

August 2019: EZOA - a catalogue of EBHIS H I-detected galaxies in the northern Zone of Avoidance

April 2018: A new approach for short-spacing correction of radio interferometric datasets

September 2017: A new approach for short-spacing correction of radio interferometric data sets

August 2017: The MeerKAT Absorption Line Survey (MALS)

July 2017: HI anisotropies associated with radio-polarimetric filaments. Steep power spectra associated with cold gas

October 2016: HI4PI: a full-sky HI survey based on EBHIS and GASS


Movie: HI4PI: A journey through the Milky Way Galaxy

Movie: HI4PI: Watch the northern and southern hemisphere

Data: HI4PI data at CDS HI4PI: science data

September 2016: An all-sky census of Galactic high-latitude molecular intermediate-velocity clouds


August 2016: Anisotropies in the HI gas distribution toward 3C196


July 2016: High-resolution HI and CO observations of high-latitude intermediate-velocity clouds


April 2016: Cold Milky Way Hi gas in filaments


April 2016: Star formation in a diffuse high-altitude cloud?


April 2016: A survey of HI gas toward the Andromeda Galaxy


December 2015: Dust in a compact, cold, high-velocity cloud: A new approach to removing foreground emission


November 2015: The Effelsberg-Bonn HI Survey: Milky Way Gas


August 2015: Baryonic Tully-Fisher relation appears to be more "fundamental" than the classical one


June 2015: No significant differences in gas dynamics between "blue" and "red" galaxies in the local universe


January 2015: EBHIS/Planck correlation associates High-Velocity Cloud with the formation of a molecular Intermediate-Velocity Cloud


November 2014: HI/Planck correlation: The cosmic infared background watched through the Milky Way HI window


October 2014: Stellar flaring matches the gaseous component


September 2014: Source finding and parametrization: EBHIS as testbed for future surveys


June 2014: HI/Planck correlation: Dust emission of the diffuse interstellar medium


April 2014: EBHIS/Planck correlation discloses formation of molecular clouds at high Galactic altitudes


March 2014: Combining single dish and radio interferometric data: a combination pipeline in the space domain


November 2013: Fueling the Interstellar Medium: High-Velocity Clouds impact?


July 2013: Westerbork study of "blue" and "red" galaxies in the local volume?


March 2013: sky coverage of EBHIS


February 2013: DFG continous funding of EBHIS for additional two years (KE757/7-3)

October 2011:Wissenschaftler durchmustern den Nordhimmel Pressemitteilung der Universität Bonn über erste EBHIS Ergebnisse

October 2011: Erstes radioastronomisches Praktikum mit neun Teilnehmern am Stockert abgehalten als praktische Ergänzung zur Einführung in die Radioastronomie

March 2011: astro123: Einführung in die Radioastronomie ist ab Sommersemester 2011 Teil des Bachelor Studiums der Physik

January 2011: DFG continuous funding (KE757/7-2) of the Effelsberg-Bonn HI Survey until end 2013

September 2010: XILINX supports the development of new radio spectrometer by donation of latest FPGA chips


Argelander-Institut für Astronomie  
Universität Bonn 
Auf dem Hügel 71 
D-53121 Bonn 

Office: Room 1.005 
Tel: ++49 228 73 3667 
Fax: ++49 228 73 1775 

Lectures and Seminars

physik541: Proseminar Päsentationstechnik

astro121: Einführung in die Astronomie

astro123: Einführung in die Radiostronomie

astro855: Dark matter and dark energy explored by radio and X-ray observations with T. Reiprich