Astronomer at the
Astronomical Institute of the University of Bochum
 

Address:   Ruhr-Universität Bochum
           Astronomisches Institut, NA 7/73
           Universitätsstr. 150
           44801 Bochum
           Germany
Phone:     +49 234 32 23448
Fax:       +49 234 32 14169
Email:    

"It is not likely that we primates gazing through bits of glass for a century or two will dissemble the architecture and history of infinity. But if we don't try we won't get anywhere."

M. J. Disney, in "The case against cosmology", General Relativity and Gravitation, Volume 32, Issue 6, p.1125-1134

Research interests, projects, involvements

• ATLAS - The Australia Telescope Large Area Survey (more)
• A Wide-field VLBI survey of the ATLAS/CDFS area (more)
• Polarimetric images / rotation measure synthesis of the ATLAS fields
• Spectral index properties of ATLAS sources, including tests for spectral curvature using
• GMRT observations of the ELAIS-S1 field
• LOFAR:
• LOFAR science with long (european) baselines.
• The German-led Magnetism Key Science Project for LOFAR
• The 7 mm upgrade of the Compact Array (science case)
• Radio telescope webcam movies (see below)
• Python scripts for astronomy (more), in particular automated flagging of radio interferometer data with Pieflag

Miscellanea

• A document (76k) suggesting various improvements to scientific presentations (and slides from a talk, in German)
• Lists with common problems and solutions in AIPS, Difmap, Linux, and, recently, Windows.
• An analysis (55k) of path length fluctuations measured with the seeing monitor at the Compact Array (this has been turned into a paper, see list of publications).

Teaching

• Slides for a talk on radio astronomy receivers.
• Slides for a talk on Fourier transforms.
• Paul Falstad has a mind-boggling collection of maths and physics Java applets. In particular the Fourier applet is very insightful, and I have used it for my talk on Fourier transforms.
• Another Java applet to demonstrate how cosine and sine waves can approximate all sorts of periodic functions.
• Link to a Java applet where one can play with 2D-Fourier transforms. You can even supply your own images via a URL.
• The Virtual Radio Interferometer applet lets you simulate observations with radio interferometers. VERY instructive.

Cool stuff - snippets from the web

Here is a cool comic by Randall "XKCD" Munroe:

Fun with telescope webcams

Ah well, just another average day at Parkes...

Publication record

Refereed papers

1. Deep Spitzer observations of infrared-faint radio sources: high-redshift radio-loud AGN?
   Ray P. Norris, Jose Afonso, Antonio Cava, Duncan Farrah, Minh T. Huynh, R. J. Ivison, Matt Jarvis, Mark Lacy, Minnie Mao, Claudia Maraston, Jean-Christophe Mauduit, Enno Middelberg, Seb Oliver, Nick Seymour and Jason Surace
   Accepted for publication in ApJ
   
2. Infrared-Faint Radio Sources: A Cosmological View - AGN Number Counts, the Cosmic X-Ray Background and SMBH Formation
   Peter-Christian Zinn, Enno Middelberg, Edo Ibar, accepted for publication in A&A
   
3. Are the infrared-faint radio sources pulsars?
   A. D. Cameron, M. J. Keith, G. Hobbs, R. P. Norris, M. Y. Mao, E. Middelberg, accepted for publication in MNRAS
   
4. DiFX2: A more flexible, efficient, robust and powerful software correlator
   A. T. Deller, W. F. Brisken, C. J. Phillips, J. Morgan, W. Alef, R. Cappallo, E. Middelberg, J. Romney, H. Rottmann, S. J. Tingay, and R. Wayth, PASP, 123, 275
   
5. VLBI imaging throughout the primary beam using accurate UV shifting
   J. S. Morgan, F. Mantovani, A. T. Deller, W. Brisken, W. Alef, E. Middelberg, M. Nanni, and S. J. Tingay, A&A, 526, 140
   
6. Wide-field VLBA Observations of the Chandra Deep Field South
   Enno Middelberg, Adam Deller, John Morgan, Helge Rottmann, Walter Alef, Steven Tingay, Ray Norris, Uwe Bach, Walter Brisken and Emil Lenc, A&A, 526, 74
   
7. The Radio Properties of Infrared-Faint Radio Sources
   Enno Middelberg, Ray P. Norris, Christopher A. Hales, Nick Seymour, Melanie Johnston-Hollitt, Minh T. Huynh, Emil Lenc and Minnie Y. Mao, A&A, 526, 8
   
8. Wide-angle tail galaxies in ATLAS
   Minnie Y. Mao, Rob Sharp, D. J. Saikia, Ray. P. Norris, Melanie Johnston-Hollitt, Enno Middelberg and Jim E. J. Lovell, MNRAS, 406, 2578
   
9. Evidence for Infrared-Faint Radio Sources as z>1 Radio-Loud AGN
   M. T. Huynh, R. P. Norris, B. Siana and E. Middelberg, ApJ, 710, 698
   
10. Faraday Rotation Structure on Kiloparsec Scales in the Radio Lobes of Centaurus A
    I. J. Feain, R. D. Ekers, T. Murphy, B. M. Gaensler, J-P Macquart, R. P. Norris, T. J. Cornwell, M. Johnston-Hollitt, J. Ott, and E. Middelberg, ApJ, 707, 114
    
11. The first VLBI image of an Infrared-Faint Radio Source
    Enno Middelberg, Ray. P. Norris, Steven Tingay, Minnie Y. Mao, Chris J. Phillips and Aidan W. Hotan, A&A, 491, 435
    
12. High resolution radio astronomy using very long baseline interferometry
    Enno Middelberg and Uwe Bach 2008, Reports on Progress in Physics, Volume 71, Issue 6, pp. 066901
    
13. Deep ATLAS Radio Observations of the ELAIS-S1/Spitzer Wide-Area Infrared Extragalctic field
    Enno Middelberg, Ray P. Norris, Tim J. Cornwell, Maxim A. Voronkov, Brian D. Siana, Brian J. Boyle, Paolo Ciliegi, Carole A. Jackson, Minh T. Huynh, Stefano Berta, Stefano Rubele, Carol J. Lonsdale, Rob J. Ivison and Ian Smail, AJ, 135, 1276
    
14. Very long baseline interferometry detection of an Infrared-Faint Radio Source
    Ray P. Norris, Steven Tingay, Chris Phillips, Enno Middelberg, Adam Deller, Philip N. Appleton 2007, MNRAS, 378, 1434
    
15. Dressing a Naked Quasar: Star Formation and Active Galactic Nucleus Feedback in HE 0450-2958
    Ilana J. Feain, Padelis P. Papadopoulos, Ron D. Ekers, and Enno Middelberg 2007, ApJ, 662, 872
    
16. Jet-cloud collisions in the jet of the Seyfert galaxy NGC3079
    Enno Middelberg, Ivan Agudo, Alan L. Roy, and Thomas P. Krichbaum 2007, MNRAS, 377, 731
    
17. Extending the infrared radio correlation
    Boyle, B. J.; Cornwell, T. J.; Middelberg E.; Norris, R.P.; Appleton, P.N.; Smail, Ian 2007, MNRAS, 376, 1182
    
18. Deep ATLAS Radio Observations of the Chandra Deep Field-South/Spitzer Wide-Area Infrared Extragalactic Field
    Norris, R. P., Afonso, J., Appleton, P. N., Boyle, B. J., Ciliegi, P., Croom, S. M., Huynh, M. T., Jackson, C. A., Koekemoer, A. M., Lonsdale, C. J., Middelberg, E., Mobasher, B., Oliver, S. J., Polletta, M., Siana, B. D., Smail, I., Voronkov, M. A. 2006, AJ, 132, 2409
    
19. The ATCA Seeing Monitor
    Middelberg, E., Sault, R. J., Kesteven, M. J., PASA, 23, 147
    
20. Automated Editing of Radio Interferometer Data with Pieflag
    Middelberg, E. 2006, PASA, 23, 64
    
21. VLBI observations of weak sources using fast frequency switching
    Middelberg, E., Roy, A. L., Walker, R. C. and Falcke, H. 2005, A&A, 433, 897
    
22. Motion and Properties of Nuclear Radio Components in Seyfert Galaxies Seen with VLBI
    Middelberg, E., Roy, A. L., Nagar, N. M., Krichbaum, T. P., Norris, R. P., Wilson, A. S., Falcke, H., Colbert, E. J. M., Witzel, A. and Fricke, K. J. 2004, A&A, 417, 925
    
23. Radioastronomie in der Schule
    Middelberg, E. and Fuhrmann, L. 2003, Astronomie und Raumfahrt im Unterricht, 76, 16 (in German)
    

Conference contributions

1. Finding AGN with wide-field VLBI observations
   Enno Middelberg, Adam Deller, John Morgan, Helge Rottmann, Walter Alef, Steven Tingay, Ray Norris, Uwe Bach, Walter Brisken, and Emil Lenc, to appear in the proceedings of the 10th European VLBI Network Symposium.
2. WATs In ATLAS
   Mao, Minnie; Sharp, R.; Saikia, D.; Norris, R.; Middelberg, E.; Lovell, J.; Johnston-Hollitt, M. in: AAS Meeting #215, #470.20; Bulletin of the American Astronomical Society, Vol. 42, p.517
   
3. The ATLAS Survey of the CDFS and ELAIS-S1 Fields
   E. Lenc, R. Norris, A. Hopkins, R. Sharp, M. Huynh, M. Mao, E. Middelberg, K. Randall 2009 in: Panoramic Radio Astronomy
   
4. A long overdue synthesis image of Centaurus A
   Feain, I.J.; Cornwell, T.J.; Ekers, R.D.; et. al. 2008 in: Galaxies in the Local Volume, Sydney, NSW, 8-13 July 2007, Astrophys. & Space Sci. Proc., 287-288 (2008)
   
5. VLBA observations of 96 sources in the Chandra Deep Field South
   Middelberg, E.; Rottmann, H.; Alef, W.; Tingay, S.; Deller, A.; Norris, R.; and Lenc, E. 2008 in: The 9th European VLBI Network Symposium on The role of VLBI in the Golden Age for Radio Astronomy, Proceedings of Science
   
6. Resolving the jet in Cygnus A
   Bach, U.; Krichbaum, T. P.; Middelberg, E.; Alef, W.; Zensus, J. A. 2008 in: The 9th European VLBI Network Symposium on The role of VLBI in the Golden Age for Radio Astronomy, Proceedings of Science
   
7. ATLAS: Deep Radio Observations of Six Square Degrees
   Norris, R. P.; Middelberg, E.; Boyle, B. J. 2007 in: At the Edge of the Universe: Latest results from the deepest astronomical surveys, ed. J. Afonso, H. Ferguson, R. Norris, ASP conference series
   
8. Deep Wide Radio Observations of the CDFS-SWIRE Field
   Norris, R. P.; Afonso, J.; Appleton, P.; Boyle, B.; Ciliegi, P.; Croom, S.; Huynh, M.; Jackson, C.; Koekemoer, A.; Lonsdale, C.; Middelberg, E.; Mobasher, B.; Oliver, S.; Poletta, M.; Siana, B.; Smail, I.; Voronkov, M. , poster presented in Galaxy Evolution Across the Hubble Time, International Astronomical Union. Symposium no. 235, held 14-17 August, 2006 in Prague, Czech Republic, S235, #294
   
9. ATLAS: Australia Telescope Large Area Survey: Deep Radio Observations of the CDFS-SWIRE field
   Norris R., Afonso, J., Appleton P., Boyle, B., Ciliegi, P., Croom S., Huynh M., Jackson C., Koekemoer A., Lonsdale C., Middelberg E., Mobasher B., Oliver S., Polletta M., Siana B., Smail I., Smith G., Surace J., Voronkov M., poster presented at the AAS 207th Meeting, 8-12 January 2006, Washington DC
   
10. Approaching NGC3079 with VLBI
    Middelberg, E., Krichbaum, T. P., Roy, A. L., Witzel, A. and Zensus, A. J. 2005, in Future Directions in High Resolution Astronomy: The 10th Anniversary of the VLBA, ASP Conference Series, Vol. 340. Edited by J. Romney and M. Reid. San Francisco: Astronomical Society of the Pacific, 2005., p.140
    
11. Where has all the polarization gone?
    Middelberg, E., Roy, A. L., Bach, U., Gabuzda, D. C. and Beckert, T. 2005, in Future Directions in High Resolution Astronomy: The 10th Anniversary of the VLBA, ASP Conference Series, Vol. 340. Edited by J. Romney and M. Reid. San Francisco: Astronomical Society of the Pacific, 2005., p.189
    
12. Multi-Frequency & Multi-Epoch VLBI Study of Cygnus A
    Bach, U., Kadler, M., Krichbaum, T. P., Middelberg, E., Alef, W., Witzel, A. and Zensus, J. A. 2005, in Future Directions in High Resolution Astronomy: The 10th Anniversary of the VLBA, ASP Conference Series, Vol. 340. Edited by J. Romney and M. Reid. San Francisco: Astronomical Society of the Pacific, 2005., p.30
    
13. VLBI detections of a source weaker than 100 mJy at 86 GHz
    Middelberg, E., Roy, A. L., Walker, R. C. and Falcke, H.
    in: Proceedings of the 7th European VLBI Network Symposium, Bachiller, R. Colomer, F., Desmurs, J.F., de Vicente, P. (eds.) October 12th-15 2004, Toledo, Spain
    
    
14. Spectral properties of the core and the VLBI-jets of Cygnus A
    Bach, U., Krichbaum, T.P. , Kadler, M., Middelberg, E., Alef, W., Witzel, A. and Zensus, J.A.
    in: Proceedings of the 7th European VLBI Network Symposium, Bachiller, R. Colomer, F., Desmurs, J.F., de Vicente, P. (eds.) October 12th-15 2004, Toledo, Spain
    
    
15. Multi-frequency & multi-epoch VLBI study of Cygnus A
    Bach, U., Kadler, M., Krichbaum, T. P., Middelberg, E., Alef, W., Witzel, A. and Zensus, J. A. 2003
    in: Proceedings of the Second ENIGMA Meeting, held at Porto Venere, Italy, October 11-15, 2003, Eds.: C. M. Raiteri and M. Villata, Osservatorio Astronomico di Torino, Pino Torinese, Italy, p. 216-223
    
    
16. The Seyfert Galaxy NGC3079 Observed with VLBI
    Middelberg, E., Krichbaum, T. P., Roy, A. L., Witzel, A. and Zensus, A. J. 2003,
    to appear in Proceedings of the XXXIIIrd Young European Radio Astronomer's Conference, A. G. Polatidis (ed.)
    
17. mm-VLBI: A major field of research at MPIfR
    Alef, W., Krichbaum, T. P., Roy, A. L., Middelberg, E., Graham, D. A., Porcas, R. W., Teuber, U., Keller, R., Zensus, J. A., Walker, R. C. and Bremer, M. 2002, in New Technologies in VLBI, November 5th-8th 2002, Gyeong-ju, Korea, Y. C. Minh (ed.)
    
18. Higher Resolution VLBI Imaging with Fast Frequency Switching
    Middelberg, E., Roy, A. L., Walker, R. C., Falcke, H. and Krichbaum, T. P. 2002, in 6th European VLBI Network Symposium on New Developments in VLBI Science and Technology, E. Ros, R. W. Porcas, A. P. Lobanov, and J. A. Zensus (eds.), p. 61