Astrophysical: Galaxies

  • Publication
    On the Environmental Dependence of the Cluster Galaxy Assembly Timescale
    We present estimates of CN and Mg overabundances with respect to Fe for early-type galaxies in eight clusters over a range of richness and morphology. Spectra...
  • Publication
    On the estimation of galaxy structural parameters: the Sérsic model
    This paper addresses some questions which have arisen from the use of the Sérsic r1/n law in modelling the luminosity profiles of early-type galaxies. The first...
  • Publication
    On the Eulerian Approach to the Evolution of Large-Scale Structures
    Within the classical Eulerian theory of gravitational instability, and in an Omega = 1 universe, we introduce a method for obtaining iterative solutions for the...
  • Publication
    On the Extended Structure of the Phoenix Dwarf Galaxy
    We present the star formation history (SFH) and its variations with galactocentric distance for the Local Group dwarf galaxy of Phoenix. They have been derived...
  • Publication
    On the Extreme Positive Feedback Star-forming Mode from Massive and Compact Super Star Clusters
    The force of gravity acting within the volume occupied by young, compact, and massive super star clusters is here shown to drive in situ all the matter...
  • Publication
    On the Extreme Positive Star Formation Feedback Condition in Scuba Sources
    We present a detailed study of the hydrodynamics of the matter reinserted by massive stars via stellar winds and supernovae explosions in young assembling...
  • Publication
    On the Extreme Stationary Outflows from Super Star Clusters: From Superwinds to Supernebulae and Further Massive Star Formation
    Here we discuss the properties of star cluster winds in the supercritical, catastrophic cooling regime. We demonstrate that catastrophic cooling inhibits...
  • Publication
    On the far-infrared metallicity diagnostics: applications to high-redshift galaxies
    In an earlier paper we modelled the far-infrared emission from a star-forming galaxy using the photoionization code CLOUDY and presented metallicity sensitive...
  • Publication
    On the Feedback from Super Stellar Clusters. I. The Structure of Giant H II Regions and H II Galaxies
    We review the structural properties of giant extragalactic H II regions and H II galaxies based on two-dimensional hydrodynamic calculations and propose an...