QUIJOTE scientific results - IX. Radio sources in the QUIJOTE-MFI wide survey maps

We present the catalogue of Q-U-I JOint TEnerife (QUIJO TE) W ide Surv e y radio sources extracted from the maps of the Multi-Frequency Instrument compiled between 2012 and 2018. The catalogue contains 786 sources observed in intensity and polarization, and is divided into two separate sub-catalogues: one containing 47 bright sources previously studied by the Planck collaboration and an extended catalogue of 739 sources either selected from the Planck Second Catalogue of Compact Sources or found through a blind search carried out with a Mexican Hat 2 wavelet. A significant fraction of the sources in our catalogue (38.7 per cent) are within the | b | <= 20(? )region of the Galactic plane. We determine statistical properties for those sources that are likely to be extragalactic. We find that these statistical properties are compatible with currently available models, with a similar to 1.8 Jy completeness limit at 11 GHz. We provide the polarimetric properties of (38, 33, 31, 23) sources with P detected abo v e the 99 . 99 per cent significance level at (11, 13, 17, 19) GHz respectively. Median polarization fractions are in the 2.8-4.7 per cent range in the 11-19 GHz frequency interval. We do not distinguish between Galactic and extragalactic sources here. The results presented here are consistent with those reported in the literature for flat-and steep-spectrum radio sources.

Automated summary

We present a catalogue of Q-U-I JOint TEnerife (QUIJO TE) Wide Survey radio sources extracted from maps compiled between 2012 and 2018. The catalogue contains 786 sources observed in intensity and polarization, with a significant fraction located within the Galactic plane region. We determine statistical and polarimetric properties for the sources, finding them to be consistent with current models and literature results for both flat- and steep-spectrum radio sources.