Astrophysical: Galaxies

  • Publication
    Massive Galaxies in COSMOS: Evolution of Black Hole Versus Bulge Mass but not Versus Total Stellar Mass Over the Last 9 Gyr?
    We constrain the ratio of black hole (BH) mass to total stellar mass of type-1 active galactic nuclei (AGNs) in the COSMOS survey at 1 z 2. For 10 AGNs at...
  • Publication
    Massive galaxies in Extended Groth Strip (Trujillo+, 2007)
    We use the Palomar Observatory Wide-field Infrared (POWIR)/DEEP-2 survey (Davis et al., 2003, SPIE, Vol. 4834, p. 161; Bundy et al., 2006ApJ...651..120B...
  • Publication
    Massive galaxies in Extended Groth Strip (Trujillo+, 2007)
    We use the Palomar Observatory Wide-field Infrared (POWIR)/DEEP-2 survey (Davis et al., 2003, SPIE, Vol. 4834, p. 161; Bundy et al., 2006ApJ...651..120B...
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    Massive OB stars at varying Z
    Massive stars play a key role in environments with very different metallicities. To interpret the role of massive stars in these systems we have to know their...
  • Publication
    Massive quiescent galaxies at z 3: A comparison of selection, stellar population, and structural properties with simulation predictions
    We study stellar population and structural properties of massive log (M ⋆/M ⊙) > 11 galaxies at z ≈ 2.7 in the Magneticum and IllustrisTNG hydrodynamical...
  • Publication
    Massive Relic Galaxies Challenge the Co-evolution of Super-massive Black Holes and Their Host Galaxies
    We study a sample of eight massive galaxies that are extreme outliers (3–5σ) in the {M}\bullet ‑ Mbulge local scaling relation. Two of these galaxies are...
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    Massive relic galaxies prefer dense environments
    We study the preferred environments of z ˜ 0 massive relic galaxies (M⋆ ≳ 1010 M⊙ galaxies with little or no growth from star formation or mergers since z ˜ 2)...
  • Publication
    Massive Star Formation and Tidal Structures in HCG 31
    We present new broadband optical and near-infrared CCD imaging together with deep optical intermediate-resolution spectroscopy of the Hickson Compact Group 31...
  • Publication
    Massive star formation in galaxies with excess ultraviolet emission
    From an analysis of almost 2000 Galaxy Evolution Explorer images of galaxies with morphological types ranging from E to Sab, we have found a significant subset...