The Australia Telescope 20 GHz Survey: The Source Catalogue (2009)
Murphy, Tara, Sadler, Elaine M., Ekers, Ronald D., Massardi, Marcella, Hancock, Paul J., Mahony, Elizabeth, ...
We present the full source catalogue from the Australia Telescope 20 GHz (AT20G) Survey. The AT20G is a blind radio survey carried out at 20 GHz with the Australia Telescope Compact Array (ATCA) from...
Re-analysis of the radio luminosity function of Galactic HII regions (2009)
Paladini, Roberta, De Zotti, Gianfranco, Noriega-Crespo, Alberto, Carey, Sean J.
We have re-analyzed continuum and recombination lines radio data available in the literature in order to derive the luminosity function (LF) of Galactic HII regions. The study is performed by...
Radio and Millimeter Continuum Surveys and their Astrophysical Implications (2009)
De Zotti, Gianfranco, Massardi, Marcella, Negrello, Mattia, Wall, Jasper
We review the statistical properties of the main populations of radio sources, as emerging from radio and millimeter sky surveys. Recent determinations of local luminosity functions are presented and...
Observing the Evolution of the Universe (2009)
Aguirre, James, Amblard, Alexandre, Ashoorioon, Amjad, Baccigalupi, Carlo, Balbi, Amedeo, Bartlett, James, ...
How did the universe evolve? The fine angular scale (l>1000) temperature and polarization anisotropies in the CMB are a Rosetta stone for understanding the evolution of the universe. Through detailed...
The molecular hydrogen explorer H2EX (2009)
Boulanger, Francois, Maillard, J.P., Appleton, P., Bressan, Alessandro, Danese, Luigi, Granato, Gian Luigi, ...
The Molecular Hydrogen Explorer, H2EX, was proposed in response to the ESA 2015 - 2025 Cosmic Vision Call as a medium class space mission with NASA and CSA participations. The mission, conceived to...
Blind and non-blind source detection in WMAP 5-yr maps (2009)
Massardi, Marcella, Lopez-Caniego, Marcos, Gonzalez-Nuevo, Joaquin, Herranz, Diego, De Zotti, Gianfranco, Sanz, J.L.
We have analyzed the efficiency in source detection and flux density estimation of blind and non-blind detection techniques exploiting the MHW2 filter applied to the Wilkinson Microwave Anisotropy...
The extragalactic sources at mm wavelengths and their role as CMB foregrounds (2008)
De Zotti, Gianfranco, Ekers, Ronald, Danese, Luigi, Massardi, Marcella
Thesis submitted for the degree of Doctor Philosophiae, Academic Year 2007-2008
Raccanelli, A., Bonaldi, Anna, Negrello, Mattia, Matarrese, Sabino, Tormen, Giuseppe, De Zotti, Gianfranco
We reassess the estimate of the cross-correlation of the spatial distribution of the NRAO VLA Sky Survey (NVSS) radio sources with that of Cosmic Microwave Background (CMB) anisotropies from the...
On the evolution of clustering of 24-μm-selected galaxies (2008)
Magliocchetti, Manuela, Cirasuolo, Michele, McLure, R.J., Dunlop, J.S., Almaini, O., Foucaud, S., ...
This paper investigates the clustering properties of a complete sample of 1041 24um-selected sources brighter than F[24um]=400 uJy in the overlapping region between the SWIRE and UKIDSS UDS surveys....
The extragalactic radio-source population at 95 GHz (2008)
Sadler, Elaine M., Ricci, Roberto, Ekers, Ronald D., Sault, Robert J., Jackson, Carole A., De Zotti, Gianfranco
We have used the Australia Telescope Compact Array (ATCA) at 95GHz to carry out continuum observations of 130 extragalactic radio sources selected from the Australia Telescope 20GHz (AT20G) survey....
Observability of the virialization phase of spheroidal galaxies with radio arrays (2008)
Massardi, Marcella, Lapi, Andrea, De Zotti, Gianfranco, Ekers, Ronald D., Danese, Luigi
In the standard galaxy formation scenario plasma clouds with a high thermal energy content must exist at high redshifts since the proto-galactic gas is shock heated to the virial temperature, and...
Gonzalez-Nuevo, Joaquin, Massardi, Marcella, Argueso, Francisco, Herranz, Diego, Toffolatti, Luigi, Sanz, J.L., ...
We present results on spectral index distributions, number counts, redshift distribution and other general statistical properties of extragalactic point sources in the NEWPS5 sample L\'opez-Caniego...
The Australia Telescope 20-GHz (AT20G) Survey: the Bright Source Sample (2008)
Massardi, Marcella, Ekers, Ronald D., Murphy, Tara, Ricci, Roberto, Sadler, Elaine M., Burke, Sarah, ...
The Australia Telescope 20 GHz (AT20G) Survey is a blind survey of the whole Southern sky at 20 GHz (with follow-up observations at 4.8 and 8.6 GHz) carried out with the Australia Telescope Compact...
Bonaldi, Anna, Ricciardi, Sara, Leach, Samuel, Stivoli, Federico, Baccigalupi, Carlo, De Zotti, Gianfranco
The Correlated Component Analysis (CCA) allows us to estimate how the different diffuse emissions mix in CMB experiments, exploiting also complementary information from other surveys. It is...
Component separation methods for the PLANCK mission (2008)
Leach, Samuel M., Baccigalupi, Carlo, Barreiro, R.B., De Zotti, Gianfranco, Gonzalez-Nuevo, Joaquin, ...
The Planck satellite will map the full sky at nine frequencies from 30 to 857 GHz. The CMB intensity and polarization that are its prime targets are contaminated by foreground emission. The goal of...
The properties of extragalactic radio sources selected at 20 GHz (2007)
Sadler, Elaine M., Ricci, Roberto, Ekers, Ronald D., Ekers, J.A., Hancock, Paul J., Jackson, Carole A., ...
We present some first results on the variability, polarization and general properties of radio sources selected in a blind survey at 20 GHz, the highest frequency at which a sensitive radio survey...
Bonaldi, Anna, Bedini, L., Salerno, E., Baccigalupi, Carlo, De Zotti, Gianfranco
We present the first tests of a new method, the Correlated Component Analysis (CCA) based on second-order statistics, to estimate the mixing matrix, a key ingredient to separate astrophysical...
The growth of the nuclear black holes in submillimetre galaxies (2007)
Granato, Gian Luigi, Silva, Laura, Lapi, Andrea, Shankar, Francesco, De Zotti, Gianfranco, Danese, Luigi
We show that the ABC scenario we proposed for the co-evolution of spheroids and QSOs predicts accretion rates and masses of supermassive black holes in sub-mm galaxies in keeping with recent X-ray...
Constraints on evolutionary properties of GHz Peaked Spectrum galaxies (2007)
Tinti, Sara, De Zotti, Gianfranco
We have used the available samples of Gigahertz Peaked Spectrum (GPS) galaxies to investigate their evolution properties in the framework of the ``youth'' scenario. Care was taken to properly allow...
Ricci, Roberto, Prandoni, Isabella, Gruppioni, Carlotta, Sault, Robert J., De Zotti, Gianfranco
We discuss our ATCA 18.5 and 22 GHz flux density measurements of the Southern extragalactic sources in the complete 5-GHz sample of Kuehr et al. (1981). The high-frequency (5-18.5 GHz) spectral...
Mao, Jirong, Lapi, Andrea, Granato, Gian Luigi, De Zotti, Gianfranco, Danese, Luigi
We explore the onset of star formation in the early Universe, exploiting the observations of high-redshift Lyman-break galaxies (LBGs) and Lyman alpha emitters (LAEs), in the framework of the galaxy...
Shankar, Francesco, Lapi, Andrea, Salucci, Paolo, De Zotti, Gianfranco, Danese, Luigi
We present new relationships between halo masses M_h and several galaxy properties, including r*-band luminosities L_r, stellar (M_star) and baryonic masses, stellar velocity dispersions (sigma), and...
Quasar Luminosity Functions from Joint Evolution of Black Holes and Host Galaxies (2007)
Lapi, Andrea, Shankar, Francesco, Mao, Jirong, Granato, Gian Luigi, Silva, Laura, De Zotti, Gianfranco, ...
We show that our previously proposed anti-hierarchical baryon collapse scenario for the joint evolution of black holes and host galaxies predicts quasar luminosity functions at redshifts 1.5
The large-scale clustering of radio sources (2007)
Negrello, Mattia, Magliocchetti, Manuela, De Zotti, Gianfranco
The observed two-point angular correlation function, w(theta), of mJy radio sources exhibits the puzzling feature of a power-law behaviour up to very large (almost 10 degrees) angular scales which...
The extragalactic radio-source population at 95 GHz (2007)
Sadler, Elaine M., Ricci, Roberto, Ekers, Ronald D., Sault, Robert J., Jackson, Carole A., De Zotti, Gianfranco
We have used the Australia Telescope Compact Array (ATCA) at 95GHz to carry out continuum observations of 130 extragalactic radio sources selected from the Australia Telescope 20GHz (AT20G) survey....
The Australia Telescope 20 GHz (AT20G) Survey: The Bright Source Sample (2007)
Massardi, Marcella, Ekers, Ronald D., Murphy, Tara, Ricci, Roberto, Sadler, Elaine M., Burke, Sarah, ...
The Australia Telescope 20 GHz (AT20G) Survey is a blind survey of the whole Southern sky at 20 GHz (with follow-up observations at 4.8 and 8.6 GHz) carried out with the Australia Telescope Compact...
Lopez-Caniego, Marcos, Gonzalez-Nuevo, Joaquin, Herranz, D., Massardi, Marcella, Sanz, J.L., De Zotti, Gianfranco, ...
We have used the MHW2 filter to obtain estimates of the flux densities at the WMAP frequencies of a complete sample of 2491 sources, mostly brighter than 500 mJy at 5 GHz, distributed over the whole...
Magliocchetti, Manuela, Silva, Laura, Lapi, Andrea, De Zotti, Gianfranco, Granato, Gian Luigi, Fadda, Dario, ...
The ~800 optically unseen (R>25.5) 24mum-selected sources in the complete Spitzer First Look Survey sample (Fadda et al. 2006) with F[24mum]>0.35 mJy are found to be very strongly clustered. If, as...
Negrello, Mattia, Perrotta, Francesca, Silva, Laura, De Zotti, Gianfranco, Granato, Gian Luigi, ...
We present a quantitative analysis of the astrophysical and cosmological information that can be extracted from the many important wide-area, shallow surveys that will be carried out in the next few...
High-frequency properties of extragalactic radio sources (2007)
Danese, Luigi, De Zotti, Gianfranco, Ekers, Ronald D., Ricci, Roberto
Clustering at high redshift: the sub-millimeter and radio views (2007)
De Zotti, Gianfranco, Magliocchetti, Manuela, Negrello, Mattia
Polarized synchrotron emission (2006)
Burigana, Carlo, La Porta, Laura, Reich, Wolfgang, Reich, Patricia, Gonzalez-Nuevo, Joaquin, Massardi, Marcella, ...
Galactic synchrotron emission represents the most relevant foreground contamination in cosmic microwave background (CMB) anisotropy observations at angular scales $\theta \gsim 1^\circ$ and...
The properties of extragalactic radio sources selected at 20 GHz (2006)
Sadler, Elaine M., Ricci, Roberto, Ekers, Ronald D., Ekers, J. A., Hancock, Paul J., Jackson, Carole A., ...
We present some first results on the variability, polarization and general properties of radio sources selected in a blind survey at 20 GHz, the highest frequency at which a sensitive radio survey...
CMB and physics of the early universe (2006)
Danese, Luigi, De Zotti, Gianfranco, Lawrence, R. Charles, Longair, Malcolm, Mandolesi, Nazzareno, Novikov, Igor, ...
A physical model for co-evolution of QSOs and of their spheroidal hosts (2006)
De Zotti, Gianfranco, Shankar, Francesco, Lapi, Andrea, Granato, Gian Luigi, Silva, Laura, Cirasuolo, Michele, ...
At variance with most semi-analytic models, in the Anti-hierarchical Baryon Collapse scenario (Granato et al. 2001, 2004) the main driver of the galaxy formation and evolution is not the merging...
The demography of the youngest radio sources (2005)
De Zotti, Gianfranco, Celotti, Annalisa, Dallacasa, Daniele, Tinti, Sara
A Physical Model for the joint evolution of high-z QSOs and Spheroids (2005)
Granato, Gian Luigi, Silva, Laura, Danese, Luigi, De Zotti, Gianfranco, Bressan, Alessandro
We summarize our physical model for the early co-evolution of spheroidal galaxies and of active nuclei at their centers. Our predictions are in excellent agreement with a number of observables which...
Observational tests of the evolution of spheroidal galaxies (2004)
Silva, Laura, De Zotti, Gianfranco, Granato, Gian Luigi, Maiolino, Roberto, Danese, Luigi
Granato et al (2004) have elaborated a physically grounded model exploiting the mutual feedback between star-forming spheroidal galaxies and the active nuclei growing in their cores to overcome, in...
Burigana, Carlo, De Zotti, Gianfranco, Feretti, Luigina
The signatures from Sunyaev-Zeldovich effects and free-free emission in the intergalactic and intracluster medium and at galactic scales probe the structure evolution at various cosmic times. The...
Predictions for high-frequency radio surveys of extragalactic sources (2004)
De Zotti, Gianfranco, Ricci, Roberto, Mesa, Dino, Silva, Laura, Mazzotta, Pasquale, Toffolatti, Luigi, ...
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...
Radio source contamination of the Sunyaev-Zeldovich effect in galaxy clusters (2004)
Massardi, Marcella, De Zotti, Gianfranco
By cross-correlating the 1.4 GHz FIRST catalog of radio sources with the Abell cluster catalog we have found an excess surface density by a factor ~5 of radio sources within a projected distance,...
Silva, Laura, De Zotti, Gianfranco, Granato, Gian Luigi, Maiolino, Roberto, Danese, Luigi
Granato et al(2004) have elaborated a physically grounded model exploiting the mutual feedback between star-forming spheroidal galaxies and the active nuclei growing in their cores to overcome,...
Observational tests of the galaxy formation process (2004)
De Zotti, Gianfranco, Granato, Gian Luigi, Silva, Laura, Danese, Luigi
The mutual feedback between star formation and nuclear activity in large spheroidal galaxies may be a key ingredient to overcome several difficulties plaguing current semi-analytic models for galaxy...
A Physical Model for the Co-evolution of QSOs and of their Spheroidal Hosts (2003)
Granato, Gian Luigi, De Zotti, Gianfranco, Silva, Laura, Bressan, Alessandro, Danese, Luigi
We present a physically motivated model for the early co-evolution of massive spheroidal galaxies and active nuclei at their centers. Within dark matter halos, forming at the rate predicted by the...
Millimeter-band Surveys of Extragalactic Sources (2002)
De Zotti, Gianfranco, Perrotta, Francesca, Granato, Gian Luigi, Silva, Laura, Ricci, Roberto, Baccigalupi, Carlo, ...
Surveys 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...
Mesa, D., Baccigalupi, Carlo, De Zotti, Gianfranco, Gregorini, L., Vigotti, M., ...
We investigate the statistical properties of the polarized emission of extragalactic radio sources and estimate their contribution to the power spectrum of polarization fluctuations in the microwave...
All-sky astrophysical component separation with Fast Independent Component Analysis (FastICA) (2002)
Maino, Davide, Farusi, A., Baccigalupi, Carlo, Perrotta, Francesca, Banday, A.J., Bedini, L., ...
We present a new, fast, algorithm for the separation of astrophysical components superposed in maps of the sky, based on the fast Independent Component Analysis technique (FastICA). It allows to...
Gravitational lensing of extended high-redshift sources by dark matter haloes (2002)
Perrotta, Francesca, Baccigalupi, Carlo, Bartelmann, Matthias, De Zotti, Gianfranco, Granato, Gian Luigi
Formation of spheroidal galaxies: the sub-mm view (2002)
De Zotti, Gianfranco, Granato, Gian Luigi, Baccigalupi, Carlo, Magliocchetti, Manuela, Mazzei, Paola, Perrotta, Francesca, ...
The intensity of the Cosmic Far-IR Background and the strong evolution of galaxies in the far-IR to mm wavelength range demonstrate that the bulk of starlight emitted during the early phases of...
Spheroidal Galaxies/QSOs Connection (2001)
Danese, Luigi, Granato, Gian Luigi, Silva, Laura, Magliocchetti, Manuela, De Zotti, Gianfranco
In view of the extensive evidence of a tight inter-relationship between spheroidal galaxies (and galactic bulges) and massive black holes hosted at their centers, a consistent model must deal jointly...
Workshop summary and the future (2001)
De Zotti, Gianfranco, Burigana, Carlo, Baccigalupi, Carlo
We present a tentative summary of the many very interesting issues that have been addresses at this workshop, focussing in particular on the perspectives for measuring the polarization power spectra...
Polarized Foregrounds Power Spectra vs CMB (2001)
Baccigalupi, Carlo, De Zotti, Gianfranco, Burigana, Carlo, Perrotta, Francesca
We briefly review our work about the polarized foreground contamination of the Cosmic Microwave Background maps. We start by summarizing the main properties of the polarized cosmological signal,...
Gravitational lensing: effects of cosmology and of lens and source profiles (2001)
Perrotta, Francesca, Baccigalupi, Carlo, Bartelmann, Matthias, De Zotti, Gianfranco, Granato, Gian Luigi
We present detailed calculations of the magnification distribution, including both weak and strong lensing, using very recent solutions of the Dyer-Roeder (1973) equation for light propagation in a...
Power spectrum of the polarized diffuse Galactic radio emission (2001)
Baccigalupi, Carlo, Burigana, Carlo, Perrotta, Francesca, De Zotti, Gianfranco, La Porta, L., Maino, Davide, ...
We have analyzed the available polarization surveys of the Galactic emission to estimate to what extent it may be a serious hindrance to forthcoming experiments aimed at detecting the polarized...
An evolutionary model for GHz peaked spectrum sources. Predictions for high frequency surveys (2000)
De Zotti, Gianfranco, Granato, Gian Luigi, Silva, Laura, Maino, Davide, Danese, Luigi
We have explored, in the general framework of the "young source" scenario, evolutionary models for GHz Peaked Spectrum (GPS) galaxies and quasars which reproduce the observed counts, redshift and...
Dust in High Redshift Radio Galaxies and the Early Evolution of Spheroidal Galaxies (1995)
Mazzei, Paola, De Zotti, Gianfranco
Several lines of evidence suggest that early-type galaxies might have been very dusty during their initial evolutionary stages, characterized by intense star formation activity. The radio selection...