Browsing University of Hertfordshire by Author "Jeffers, S V"

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    • Dense spot coverage and polar caps on SV Cam 

      Jeffers, S V; Cameron, A C; Barnes, J R; Aufdenberg, J P; Hussain, G A J (European Space Agency, 2005)
      We have used spectrophotometric data from 9 HST orbits to eclipse-map the primary component of the RS CVn binary SV Cam. From these observations and SV Cam's HIPPARCOS parallax we find that the surface flux in the eclipsed ...

    • The latitude distribution of star-spots on He 699 

      Jeffers, S V; Barnes, J R; Collier Cameron, A (2002-04-11)
      In this paper, the latitude distribution of star-spots is analysed for the rapidly rotating G dwarf He 699, An image has been reconstructed from data taken with the William Herschel Telescope on La Palma on 2000 October ...