Astrophysical: Quasars

  • Publication
    Toward measuring supermassive black hole masses with interferometric observations of the dust continuum
    This work focuses on active galactic nuclei (AGNs) and on the relation between the sizes of the hot dust continuum and the broad-line region (BLR). We find that...
  • Publication
    Towards an automatic classification of distortions as merging indicators in AGN host galaxies
    Does a merging event always precede AGN activity? In this starting PhD project, we will try to address this question by quantifying the distortions and...
  • Publication
    Tracing a high redshift cosmic web with quasar systems
    Context. To understand the formation, evolution, and present-day properties of the cosmic web we need to study it at low and high redshifts. Aims: We trace the...
  • Talk
    Triggering Quasars
    In the 50 years since their discovery, it has become increasingly recognised that quasars are not merely signposts to the distant Universe, but also play a key...
  • Publication
    Two emission line objects with z > 0.2 in the optical filament apparently connecting the Seyfert galaxy NGC 7603 to its companion
    We present new spectroscopic observations of an old case of anomalous redshift - NGC 7603 and its companion. The redshifts of the two galaxies which are...
  • Publication
    Two new confirmed massive relic galaxies: red nuggets in the present-day Universe
    We confirm two new local massive relic galaxies, i.e. untouched survivors of the early Universe massive population: Mrk 1216 and PGC 032873. Both show early and...
  • Publication
    Two-dimensional Spectroscopy Reveals an Arc of Extended Emission in the Gravitational Lens System Q2237+0305
    We present two-dimensional spectroscopy of the gravitational lens system Q2237+0305 (Einstein Cross) obtained with the INTEGRAL fiber system in subarcsecond...
  • Publication
    UBVRI observations of quasars
    UBVRI observations of 37 QSOs are reported. The sample is considered as a good representation of the bright (V not greater than 17) quasars in the compilation...
  • Publication
    Unidentified quasars among stationary objects from Gaia DR2
    Here we apply a technique selecting quasar candidates purely as sources with zero proper motions in the Gaia data release 2 (DR2). We demonstrate that this...