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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 (σ), and black hole masses (M BH). Approximate analytic expressions are given. In the galaxy halo mass range 3 × 10 10 M ⊙ ≤ M h ≤ 3 × 10 13 M ⊙ the M h –L r , M star(More)
The Herschel ATLAS is the largest open-time key project that will be carried out on the Herschel Space Observatory. It will survey 510 square degrees of the extragalactic sky, four times larger than all the other Herschel surveys combined, in five far-infrared and submillimetre bands. We describe the survey, the complementary multi-wavelength datasets that(More)
We show that our anti-hierarchical baryon collapse scenario (Granato et al. 2004) for the joint evolution of black holes and host galaxies predicts quasar luminosity functions at redshifts 1.5 z 6 and local demographic properties in nice agreement with observations. In our model the quasar activity marks and originates the transition between an earlier(More)
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 observed strong evolution in size is directly related to the quasar feedback, which removes huge amounts of cold gas from the central regions in a Salpeter time, inducing an expansion(More)
  • P Salucci, A Lapi, C Tonini, G Gentile, I Yegorova, U Klein
  • 2007
In the current ΛCDM cosmological scenario, N-body simulations provide us with a Universal mass profile, and consequently a Universal equilibrium circular velocity of the virialized objects, as galaxies. In this paper we obtain, by combining kinematical data of their inner regions with global observational properties, the Universal Rotation Curve (URC) of(More)
To investigate the poorly constrained sub-mm counts and spectral properties of blazars we searched for these in the Herschel-ATLAS (H-ATLAS) science demonstration phase (SDP) survey catalog. We cross-matched 500 μm sources brighter than 50 mJy with the FIRST radio catalogue. We found two blazars, both previously known. Our study is among the first blind(More)
  • M Cook, A Lapi, G L Granato
  • 2009
We propose and test a scenario for the assembly and evolution of luminous matter in galaxies which substantially differs from that adopted by other semianalytic models. As for the dark matter (DM), we follow the detailed evolution of halos within the canonical ΛCDM cosmology using standard Montecarlo methods. However, when overlaying prescriptions for(More)
We explore the onset of star formation in the early Universe, exploiting the observations of high-redshift Lyman-break galaxies (LBGs) and Lyα emitters (LAEs), in the framework of the galaxy formation scenario elaborated by Granato et al. (2004) already successfully tested against the wealth of data on later evolutionary stages. Complementing the model with(More)
  • A Lapi, N Kawakatu, Z Bosnjak, A Celotti, A Bressan, G L Granato +1 other
  • 2008
Motivated by the recent observational and theoretical evidence that long Gamma-Ray Bursts (GRBs) are likely associated with low metallicity, rapidly rotating massive stars, we examine the cosmological star formation rate (SFR) below a critical metallicity Z crit ∼ Z ⊙ /10 − Z ⊙ /5, to estimate the event rate of high-redshift long GRB progenitors. To this(More)
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 determinations. These masses are well below the local values, and those predicted by alternative models. The observed column densities may be mostly due to ISM in(More)