Predictions for high-frequency radio surveys of extragalactic sources
- ,
- Roberto Ricci(,)
- Padua Observ. and
- SISSA, Trieste and
- Trieste Observ. and
- Rome U., Tor Vergata and
- Oviedo U.
- Dino Mesa(,)
- Padua Observ. and
- SISSA, Trieste and
- Trieste Observ. and
- Rome U., Tor Vergata and
- Oviedo U.
- Laura Silva(,)
- Padua Observ. and
- SISSA, Trieste and
- Trieste Observ. and
- Rome U., Tor Vergata and
- Oviedo U.
- Pasquale Mazzotta()
- Padua Observ. and
- SISSA, Trieste and
- Trieste Observ. and
- Rome U., Tor Vergata and
- Oviedo U.
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Abstract: (arXiv)
We present detailed predictions of the contributions of the various source populations to the counts at frequencies of tens of GHz. New evolutionary models are worked out for flat-spectrum radio quasars, BL Lac objects, and steep-spectrum sources. Source populations characterized by spectra peaking at high radio frequencies, such as extreme GPS sources, ADAF/ADIOS sources and early phases of gamma-ray burst afterglows are also dealt with. The counts of different populations of star-forming galaxies (normal spirals, starbursts, high-z galaxies detected by SCUBA and MAMBO surveys, interpreted as proto-spheroidal galaxies) are estimated taking into account both synchrotron and free-free emission, and dust re-radiation. Our analysis is completed by updated counts of Sunyaev-Zeldovich effects in clusters of galaxies and by a preliminary estimate of galactic-scale Sunyaev-Zeldovich signals associated to proto-galactic plasma.- ACTIVE GALAXIES
- QUASARS
- BL LAC OBJECTS
- RADIO CONTINUUM
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