Extragalactic radio sources selected at 20GHz (Sadler+, 2006)

Details Extragalactic radio sources selected at 20GHz (Sadler+, 2006) Extragalactic radio sources selected at 20GHz (Sadler+, 2006)

May 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007ycat..73710898s&link_type=abstract

VizieR On-line Data Catalog: J/MNRAS/371/898. Originally published in: 2006MNRAS.371..898S

Computer Science

Surveys, Radio Sources

Scientific paper

We present some first results on the variability, polarization and general properties of radio sources selected at 20GHz, the highest frequency at which a sensitive radio survey has been carried out over a large area of sky. Sources with flux densities above 100 mJy in the Australia Telescope Compact Array 20GHz pilot survey at declination 60{deg} to 70{deg} were observed at up to three epochs during 2002-04, including near-simultaneous measurements at 5, 8 and 18GHz in 2003. Of the 173 sources detected, 65 per cent are candidate QSOs or BL Lac objects, 20 per cent galaxies and 15 per cent faint (bJ>22mag) optical objects or blank fields.
(1 data file).

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