A 25 micron search for Vega-like disks around main-sequence stars with ISO

  title={A 25 micron search for Vega-like disks around main-sequence stars with ISO},
  author={Ren{\'e} J. Laureijs and Marie Jourdain de Muizon and Kieron J. Leech and Ralf Siebenmorgen and Carsten Dominik and Harm Jan Habing and N. R. Trams and Martin F. Kessler},
  journal={Astronomy and Astrophysics},
We present an ISO 25 m photometric survey of a sample of 81 nearby main-sequence stars in order to determine the incidence of \warm" dust disks. All stars were detected by ISO. We used an empirical relation to estimate the photospheric flux of the stars at 25m. We nd 5 stars (6%) with excess above the photospheric flux which we attribute to a Vega-like disk. These stars show disk temperatures not warmer than 120 K. Our study indicates that warm disks are relatively rare. Not a single star in… 

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