An Excess Due to Small Grains Around The Nearby K0V Star HD69830: Asteroid or Cometary Debris?

C. A. Beichman, G. Bryden, T. N. Gautier +6

Spitzer photometry and spectroscopy of the star HD69830 reveal an excess of emission relative to the stellar photosphere between 8 and 35 $\mu$m dominated by strong features attribut…