Now showing items 1-2 of 2

    • A determination of the space density and birth rate of hydrogen-line (DA) white dwarfs in the Galactic plane, based on the UVEX survey 

      Verbeek, Kars; Groot, Paul J.; Nelemans, Gijs A.; Scaringi, Simone; Napiwotzki, R.; Drew, J.E.; Steeghs, D.T.H.; Casares, Jorge; Corral-Santana, J.M.; Gänsicke, Boris T.; González-Solares, E.A.; Greimel, Robert; Heber, Ulrich; Irwin, Mike J.; Knigge, Christian; Wright, N.J.; Zijlstra, Albert (2013-10-01)
      We present a determination of the average space density and birth rate of hydrogen-line (DA) white dwarfs within a radius of 1 kpc around the Sun, based on an observational sample of 360 candidate white dwarfs with g <19.5 ...
    • Spectroscopic follow-up of ultraviolet-excess objects selected from the UVEX survey 

      Verbeek, K.; Groot, P.J.; Scaringi, S.; Nelemans, G.; Napiwotzki, R.; Spikings, B.; Drew, J.E.; Østensen, R.H.; Steeghs, D.; Gänsicke, B.T.; Casares, J.; Corral-Santana, J.M.; Corradi, R.L.M.; Deacon, Niall; Drake, J.J.; González-Solares, E.; Irwin, M.J.; Greimel, R.; Heber, U.; Knigge, C. (2012-10-21)
      We present the results of the first spectroscopic follow-up of 132 optically blue ultraviolet (UV)-excess sources selected from the UV-Excess Survey of the Northern Galactic Plane (UVEX). The UV-excess spectra are classified ...