Future investigations of GPS and CSS radio sources with LOFAR
Journal article, 2009
In the next few years, the Low Frequency Array (LOFAR) will open up one of the last astronomically unexplored wavelength regimes. While the LOFAR core is currently being erected in the Netherlands, its outer stations will cover a large part of Europe, resulting in an unprecedented angular resolution at > meter wavelengths. Next to many other exciting scientific endeavours, LOFAR will be the first instrument to probe the low frequency spectra of Gigahertz Peaked Spectrum (GPS) and Compact Steep Spectrum (CSS) radio sources. It will give new insights into their absorption processes, and probe associated extended emission (possibly linked to earlier epochs of activity) in these enigmatic class of young active galactic nuclei. Furthermore, LOFAR will be sensitive to possibly the most distant GPS and CSS sources, of which their spectral turnovers have redshifted down to the lowest observable radio frequencies.
Author
I. Snellen
Leiden University
H.J.A. Rottgering
Leiden University
P. D. Barthel
University of Groningen
P.N. Best
University of Edinburgh
M. Brüggen
Jacobs University Bremen
John Conway
Chalmers, Department of Radio and Space Science, Radio Astronomy and Astrophysics
M.J. Jarvis
University of Hertfordshire
M. Lehnert
Centre national de la recherche scientifique (CNRS)
G. Miley
Leiden University
R. Morganti
University of Groningen
Netherlands Institute for Radio Astronomy (ASTRON)
Astronomische Nachrichten
0004-6337 (ISSN) 1521-3994 (eISSN)
Vol. 330 2-3 297-300Subject Categories
Astronomy, Astrophysics and Cosmology
DOI
10.1002/asna.200811180