Browsing by Author "Oudmaijer, R.D."

Now showing items 21-26 of 26

    • The separation of the stars in the binary nucleus of the planetary nebula Abell 35 

      Gatti, A.A.; Drew, J.E.; Oudmaijer, R.D.; Marsh, T.R.; Lynas-Gray, A.E. (1998)
      Using the Planetary Camera on board the Hubble Space Telescope we have measured the projected separation of the binary components in the nucleus of the planetary nebula Abell 35 to be larger than 0.08′′ but less than 0.14′′. ...

    • Spectropolarimetry of Young and Evolved Stars 

      Oudmaijer, R.D.; Davies, B.; Vink, J.S.; Drew, J.E. (2005)

    • Spectropolarimetry of Young and Evolved Stars 

      Oudmaijer, R.D.; Davies, B.; Vink, J.S.; Drew, J.E. (Astronomical Society of the Pacific, 2005)
      Circumstellar disks play an important role in many stages of the evolution of stars. However, it is only possible to directly image circumstellar disks for a few of the nearest stars. For massive stars, the situation is ...

    • Time-resolved spectroscopy of the peculiar H alpha variable Be star HD 76534 

      Oudmaijer, R.D.; Drew, J.E. (1999)
      We present time-resolved spectroscopy of the Be star HD 76534, which was observed to have an Ha outburst in 1995, when the line went from photospheric absorption to emission at a level of more than two times the continuum ...

    • Tracers of discs and winds around intermediate- and high-mass young stellar objects 

      Lumsden, S. L.; Wheelwright, H.E.; Hoare, M.G.; Oudmaijer, R.D.; Drew, J.E. (2012-08)
      We present a study of the kinematical properties of a small sample of nearby near-infrared bright massive and intermediate-mass young stellar objects using emission lines sensitive to discs and winds. We show for the first ...

    • X-shooting Herbig Ae/Be stars : accretion probed by near-infrared He I emission 

      Oudmaijer, R.D.; van den Ancker, M.E.; Baines, D.; Caselli, P.; Drew, J.E.; Hoare, M.G.; Lumsden, S.; Montesinos, B.; Sim, S.; Vink, J.S.; Wheelwright, H.E.; de Wit, W.J. (2011)
      The Herbig Ae/Be stars are intermediate mass pre-main sequence stars that bridge the gap between the low mass T Tauri stars and the Massive Young Stellar Objects. In this mass range, the acting star forming mechanism ...