The high radio frequency spectra and variability of southern flat-spectrumradio sources

Authors
Tornikoski, M Lainela, M Valtaoja, E
Citation
M. Tornikoski et al., The high radio frequency spectra and variability of southern flat-spectrumradio sources, ASTRONOM J, 120(5), 2000, pp. 2278-2283
Citations number
22
Categorie Soggetti
Space Sciences
Journal title
ASTRONOMICAL JOURNAL
ISSN journal
00046256 → ACNP
Volume
120
Issue
5
Year of publication
2000
Pages
2278 - 2283
Database
ISI
SICI code
0004-6256(200011)120:5<2278:THRFSA>2.0.ZU;2-V
Abstract
We have complemented observations of the millimeter spectra (90 and 230 GHz ) of a complete sample of Southern flat-spectrum active galactic nuclei. We discuss the overall shape of the radio spectrum of these sources and ident ify two new gigahertz-peaked spectrum sources with unusually high peak freq uencies (10-20 GHz). We also discuss the variability behavior in the millim eter domain.