10.6k citations · 40k across the 238 of their papers we have counts for
30 papers · 1 filter
The dramatic size evolution of elliptical galaxies and the quasar feedback
L. Fan, A. Lapi, G. De Zotti +1
Observations have evidenced that passively evolving massive galaxies at high redshift are much more compact than local galaxies with the same stellar mass. We argue that the observ…
The Role of the Dust in Primeval Galaxies: A Simple Physical Model for Lyman Break Galaxies and Lyman Alpha Emitters
J. Mao, A. Lapi, G. L. Granato +2
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 frame…
Estimating the spectral indices of correlated astrophysical foregrounds by a second-order statistical approach
A. Bonaldi, L. Bedini, E. Salerno +2
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 as…
Super-massive Black Hole Demography: the Match between the Local and Accreted Mass Functions
F. Shankar, P. Salucci, G. L. Granato +2
We have performed a detailed analysis of the local super-massive black-hole (SMBH) mass function based on both kinematic and photometric data and derived an accurate analytical fit…
Sunyaev-Zel'dovich Effects from Quasars in Galaxies and Groups
A. Lapi, A. Cavaliere, G. De Zotti
The energy fed by active galactic nuclei to the surrounding diffuse baryons changes their amount, temperature, and distribution; so in groups and in member galaxies it affects the…
A Physical Model for the joint evolution of QSOs and Spheroids
G. L. Granato, L. Silva, G. De Zotti +2
We summarize our detailed, physically grounded, model for the early co-evolution of spheroidal galaxies and of active nuclei at their centers (astro-ph/0307202). Our predictions ar…
A Physical Model for the Co-evolution of QSOs and of their Spheroidal Hosts
Gian Luigi Granato, Gianfranco De Zotti, Laura Silva +2
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…
Polarization Properties of Extragalactic Radio Sources and Their Contribution to Microwave Polarization Fluctuations
D. Mesa, C. Baccigalupi, G. De Zotti +4
We investigate the statistical properties of the polarized emission of extragalactic radio sources and estimate their contribution to the power spectrum of polarization fluctuation…
Extracting cosmic microwave background polarisation from satellite astrophysical maps
C. Baccigalupi, F. Perrotta, G. De Zotti +5
We present the application of the Fast Independent Component Analysis ({\ica}) technique for blind component separation to polarized astrophysical emission. We study how the Cosmic…
Sunyaev-Zeldovich Effect from Quasar-driven Blast-waves
P. Platania, C. Burigana, G. De Zotti +2
Quasar-driven winds are currently the best candidates for accounting for the pre-heating of the intergalactic medium in clusters. Such winds, occurring during early phases of the e…
Sources Variability With Planck LFI
L. Terenzi, M. Bersanelli, C. Burigana +8
Planck LFI (Low Frequency Instrument) will produce a complete survey of the sky at millimeter wavelengths. Data stream analysis will provide the possibility to reveal unexpected mi…
Workshop summary and the future
Gianfranco De Zotti, Carlo Burigana, Carlo Baccigalupi
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 polariza…
Polarized Foregrounds Power Spectra vs CMB
Carlo Baccigalupi, Gianfranco De Zotti, Carlo Burigana +1
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 cosmol…
All-sky astrophysical component separation with Fast Independent Component Analysis (FastICA)
D. Maino, A. Farusi, C. Baccigalupi +7
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)…
Theoretical predictions on the clustering of SCUBA galaxies and implications for small-scale fluctuations at sub-mm wavelengths
M. Magliocchetti, L. Moscardini, P. Panuzzo +3
This paper investigates the clustering properties of SCUBA-selected galaxies in the framework of a unifying scheme relating the formation of QSOs and spheroids (Granato et al. 2000…
Power spectrum of the polarized diffuse Galactic radio emission
C. Baccigalupi, C. Burigana, F. Perrotta +5
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…
Neural networks and separation of Cosmic Microwave Background and astrophysical signals in sky maps
C. Baccigalupi, L. Bedini, C. Burigana +8
The Independent Component Analysis (ICA) algorithm is implemented as a neural network for separating signals of different origin in astrophysical sky maps. Due to its self-organizi…
Joint Formation of QSOs and Spheroids: QSOs as clocks of star formation in Spheroids
G. L. Granato, L. Silva, P. Monaco +4
Direct and indirect observational evidence leads to the conclusion that high redshift QSOs did shine in the core of early type proto-galaxies during their main episode of star form…
Polarization fluctuations due to extragalactic sources
G. De Zotti, C. Gruppioni, P. Ciliegi +2
We have derived the relationship between polarization and intensity fluctuations due to point sources. In the case of a Poisson distribution of a population with uniform evolution…
The Planck Surveyor mission: astrophysical prospects
G. De Zotti, L. Toffolatti, F. Argüeso +5
Although the Planck Surveyor mission is optimized to map the cosmic microwave background anisotropies, it will also provide extremely valuable information on astrophysical phenomen…
Extragalactic Source Counts and Contributions to the Anisotropies of the Cosmic Microwave Background. Predictions for the Planck Surveyor mission
L. Toffolatti, F. Argüeso Gómez, G. De Zotti +4
We present predictions for the counts of extragalactic sources, the contributions to fluctuations and their spatial power spectrum in each channel foreseen for the Planck Surveyor…
Dust in High Redshift Radio Galaxies and the Early Evolution of Spheroidal Galaxies
Paola Mazzei, Gianfranco De Zotti
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. Th…
Hard X-ray emission from extragalactic IRAS 12um sources: constraints on the unified AGN model and the synthesis of the X-ray background
X. Barcons, A. Franceschini, G. De Zotti +2
We analyze the ~keV X-ray emission of complete samples of AGN and galaxies selected at 12m and recently compiled by Rush, Malkan \& Spinoglio (1993). As a necessary comple…
COSMOLOGICAL EVOLUTION OF EXTRAGALACTIC SOURCES IN THE INFRARED AND CONTRIBUTIONS TO THE BACKGROUND RADIATION
G. DeZotti, A. Franceschini, P. Mazzei +2
Infrared surveys provide essential insights on galaxy evolution. If near-IR studies suggest mild evolution of stellar populations with cosmic time, indications of a substantial evo…