Astrofísicas: Galaxias

  • Publicación
    The Hubble Space Telescope Survey of BL Lacertae Objects. I. Surface Brightness Profiles, Magnitudes, and Radii of Host Galaxies
    We report on a large Hubble Space Telescope imaging survey of BL Lac objects, at spatial resolution >~10 times better than previous ground-based surveys. We...
  • Publicación
    The Hubble Space Telescope Survey of BL Lacertae Objects. II. Host Galaxies
    We have used the Hubble Space Telescope (HST) WFPC2 camera to survey 132 BL Lac objects comprising seven complete radio-, X-ray-, and optically selected samples...
  • Publicación
    The Hubble Space Telescope Survey of BL Lacertae Objects. III. Morphological Properties of Low-Redshift Host Galaxies
    We report on the optical properties of a sample of 30 BL Lac host galaxies in the redshift range 0.03
  • Publicación
    The Hubble Space Telescope Survey of BL Lacertae Objects. IV. Infrared Imaging of Host Galaxies
    The Hubble Space Telescope NICMOS Camera 2 was used for H-band imaging of 12 BL Lacertae objects taken from the larger sample observed with the WFPC2 in the R...
  • Publicación
    The Hubble Space Telescope Survey of BL Lacertae Objects: Gravitational Lens Candidates and Other Unusual Sources
    We present Hubble Space Telescope (HST) observations of seven unusual objects from the HST ``snapshot survey'' of BL Lacertae objects, of which four are...
  • Publicación
    The Hydrangea simulations: galaxy formation in and around massive clusters
    We introduce the Hydrangea simulations, a suite of 24 cosmological hydrodynamic zoom-in simulations of massive galaxy clusters (M200c = 1014-1015.4 M⊙) with...
  • Publicación
    The hyperluminous infrared quasar 3C 318 and its implications for interpreting submm detections of high-redshift radio galaxies
    We present near-infrared spectroscopy and imaging of the compact steep-spectrum radio source 3C 318, which shows it to be a quasar at redshift z=1.574 (the z=0...
  • Publicación
    The Hα galaxy survey. I. The galaxy sample, Hα narrow-band observations and star formation parameters for 334 galaxies
    We discuss the selection and observations of a large sample of nearby galaxies, which we are using to quantify the star formation activity in the local Universe...
  • Publicación
    The Hα Galaxy Survey. II. Extinction and [NII] corrections to Hα fluxes
    We study the two main corrections generally applied to narrow-band Hα fluxes from galaxies in order to convert them to star formation rates, namely for [NII]...