Journal: Astronomy and Astrophysics

  • Publication
    HS 0943+1404, a true intermediate polar
    We have identified a new intermediate polar, HS 0943+1404, as part of our ongoing search for cataclysmic variables in the Hamburg Quasar Survey. The orbital and...
  • Publication
    HS 1857+5144: a hot and young pre-cataclysmic variable
    Aims:We report the discovery of a new white dwarf/M dwarf binary, HS 1857+5144, identified in the Hamburg Quasar Survey (HQS). Methods: Time-resolved optical...
  • Publication
    HST and VLT observations of the symbiotic star Hen 2-147. Its nebular dynamics, its Mira variable and its distance
    Aims:We investigate the dynamics of the nebula around the symbiotic star Hen 2-147, determine its expansion parallax, and compare it with the distance obtained...
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    HST confirmation of the lensed quasar J03.13.
    In order to definitely prove the claim by Claeskens et al. (1996A&A...305L...9C) that J03.13 is a doubly imaged quasar, WFPC2 direct imaging and FOS...
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    HST grism spectroscopy of z ∼ 3 massive quiescent galaxies. Approaching the metamorphosis
    Tracing the emergence of the massive quiescent galaxy (QG) population requires the build-up of reliable quenched samples by distinguishing these systems from...
  • Publication
    HST/ACS observations of shell galaxies: inner shells, shell colours and dust
    Context: Shells in Elliptical Galaxies are faint, sharp-edged features, believed to provide evidence for a merger event. Accurate photometry at high spatial...
  • Publication
    Hubble constant and nuclear equation of state from kilonova spectro-photometric light curves
    The merger of two compact objects of which at least one is a neutron star is signalled by transient electromagnetic emission in a kilonova (KN). This event is...
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    Hubble Space Telescope study of resolved red giant stars in the outer halos of nearby dwarf starburst galaxies
    Context. Central starbursts in galaxies are an extreme example of ongoing galaxy evolution. The outer parts of galaxies contain a fossil record of galaxy...
  • Publication
    Hubble spectroscopy of LB-1: Comparison with B+black-hole and Be+stripped-star models
    Context. LB-1 (alias ALS 8775) has been proposed as either an X-ray dim B-type star plus black hole (B+BH) binary or a Be star plus an inflated stripped star...