Millimeter-band Surveys of Extragalactic Sources

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dc.creatorDe Zotti, Gianfranco
dc.creatorPerrotta, Francesca
dc.creatorGranato, Gian Luigi
dc.creatorSilva, Laura
dc.creatorRicci, Roberto
dc.creatorBaccigalupi, Carlo
dc.creatorDanese, Luigi
dc.creatorToffolatti, Luigi
dc.date2002-04-02
dc.date.accessioned2026-07-07T02:03:19Z
dc.date.available2026-07-07T02:03:19Z
dc.descriptionSurveys at mm wavelengths emphasize rare classes of extragalactic radio sources characterized by spectra keeping flat or inverted up to high frequencies (such as blazars, GPS sources, advection dominated sources, or even gamma-ray burst afterglows), which are are difficult to single out at lower frequencies where the counts are dominated by far more numerous populations. Such surveys may lead to the discovery of populations with extreme properties, such as sources of the general GPS or blazar type but peaking at mm wavelengths, whose existence is hinted by currently available data. At relatively lower flux levels mm counts are dominated by high-redshift dusty galaxies, such as those detected by SCUBA and MAMBO surveys. These data have profound implications for our understanding of the formation and early evolution of galaxies. High sensitivity surveys at cm/mm wavelengths may also detect galaxy-scale Sunyaev-Zeldovich effects due to gas heated by central active nuclei.
dc.description3 figures, Proceedings conference "SRT: the impact of large antennas on Radioastronomy and Space Science", Cagliari 7-10 Novermber 2001
dc.identifierhttps://arxiv.org/abs/astro-ph/0204038
dc.identifierhttp://arxiv.org/abs/astro-ph/0204038
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/4345
dc.subjectAstrophysics
dc.titleMillimeter-band Surveys of Extragalactic Sources
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