Browsing University of Hertfordshire by Author "Jordan, S."

Now showing items 1-5 of 5

    • Discovery of kilogauss magnetic fields in three DA white dwarfs 

      Aznar Cuadrado, R.; Jordan, S.; Napiwotzki, R.; Schmid, H.M.; Solanki, S.K.; Mathys, G. (2004)
      We have detected longitudinal magnetic fields between 2 and 4 kG in three (WD0446−790, WD1105−048, WD2359−434) out of a sample of 12 normal DA white dwarfs by using optical spectropolarimetry done with the VLT Antu 8 m ...

    • The Fraction of DA White Dwarfs with Kilo-Gauss Magnetic Fields 

      Jordan, S.; Aznar Cuadrado, R.; Napiwotzki, R.; Schmid, H.M.; Solanki, S.K. (Astronomical Society of the Pacific, 2007)
      Current estimates for white dwarfs with fields in excess of 1MG are about 10%; according to our first high-precision circular-polarimetric study of 12 bright white dwarfs with the VLT (Aznar Cuadrado et al. 2004) this ...

    • Functional studies of specific imidazoline-2 receptor ligands 

      Nutt, D.J.; French, N.; Handley, S.; Hudson, A.; Husbands, S.; Jackson, H.; Jordan, S.; Lalies, M.D.; Lewis, J.; Lione, Lisa; Mallard, N.; Pratt, J. (1995-07)

    • Kilo-Gauss Magnetic Fields in Three DA White Dwarfs 

      Aznar Cuadrado, R.; Jordan, S.; Napiwotzki, R.; Schmid, H.M.; Solanki, S.K.; Mathys, G. (Astronomical Society of the Pacific, 2005)
      We have detected longitudinal magnetic fields between 2 and 4 kG in three normal DA white dwarfs (WD0446¡790, WD1105¡048, WD2359¡434) out of a sample of 12 by using optical spectropolarimetry done with the VLT Antu 8 m ...

    • Temperature determination of the cool DO white dwarf HD 149499B from EUVE observations 

      Jordan, S.; Napiwotzki, R.; Koester, D.; Rauch, T. (1997)
      We present a LTE model atmosphere analysis of the EUVE medium and long wavelength spectrum of the cool DO white dwarf HD149499B. This observation in the spectral range 230-700°A supplements a previous analysis of an ORFEUS ...