Astrophysical: Extinction

  • Publication
    A New Spin on Galactic Dust
    We present a new puzzle involving Galactic microwave emission and attempt to resolve it. On one hand, a cross-correlation analysis of the Wisconsin Hα Mapper...
  • Publication
    A quasar hiding behind two dusty absorbers. Quantifying the selection bias of metal-rich, damped Lyα absorption systems
    The cosmic chemical enrichment as measured from damped Lyα absorbers (DLAs) will be underestimated if dusty and metal-rich absorbers have evaded identification...
  • Publication
    A sample of dust attenuation laws for Dark Energy Survey supernova host galaxies
    Context. Type Ia supernovae (SNe Ia) are useful distance indicators in cosmology, provided their luminosity is standardized by applying empirical corrections...
  • Publication
    A search for diffuse bands in the circumstellar envelopes of post-AGB stars
    In this work we present the results of a systematic search for diffuse bands (DBs, hereafter) in the circumstellar envelopes of a carefully selected sample of...
  • Publication
    A Study of Gravitational Lens Chromaticity Using Ground-based Narrowband Photometry
    We present observations of wavelength-dependent flux ratios for four gravitational lens systems (SDSS J1650+4251, HE 0435-1223, FBQ 0951+2635, and Q 0142-100)...
  • Publication
    A Study of Gravitational Lens Chromaticity with the Hubble Space Telescope
    We report Hubble Space Telescope observations of six gravitational lenses with the Advanced Camera for Surveys. We measured the flux ratios between the lensed...
  • Publication
    A three-dimensional Galactic extinction model
    A large-scale three-dimensional model of Galactic extinction is presented based on the Galactic dust distribution model of citet{DS01}. The extinction AV to any...
  • Publication
    An imaging spectroscopic survey of the planetary nebula NGC 7009 with MUSE★
    Aims: The spatial structure of the emission lines and continuum over the 50″ extent of the nearby, O-rich, PN NGC 7009 (Saturn Nebula) have been observed with...
  • Publication
    Are extreme asymptotic giant branch stars post-common envelope binaries?
    Modelling dust formation in single stars evolving through the carbon-star stage of the asymptotic giant branch (AGB) reproduces well the mid-infrared colours...