Article Information
vol. 341 no. 6150 1082-1085
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History:
- Received for publication May 13, 2013
- Accepted for publication July 24, 2013
- .
Copyright & Usage:
Copyright © 2013, American Association for the Advancement of Science
Author Information
- 1ASTRON, Netherlands Institute for Radio Astronomy, Postbus 2, 7990 AA, Dwingeloo, Netherlands.
- 2Kapteyn Astronomical Institute, University of Groningen, Post Office Box 800, 9700 AV Groningen, Netherlands.
- 3Eötvös Loránd University, Egyetem tér 1-3, 1053 Budapest, Hungary.
- 4Joint Institute for Very Long Baseline Interferometry (VLBI) in Europe, Postbus 2, 7990 AA Dwingeloo, Netherlands.
- 5Istituto Nazionale di Astrofisica (INAF)–Istituto di Radioastronomia, via Gobetti 101, I-40129, Bologna, Italy.
- ↵*Corresponding author. E-mail: morganti{at}astron.nl
