Spitzer IRS Spectroscopy of IRAS-discovered Debris Disks

@article{Chen2006SpitzerIS,
  title={Spitzer IRS Spectroscopy of IRAS-discovered Debris Disks},
  author={C. H. Chen and Benjamin A. Sargent and Chris Bohac and K. H. Kim and Eric M. Leibensperger and M. Jura and Joan Rie Najita and William J. Forrest and Dan M. Watson and G. C. Sloan and Luke D. Keller},
  journal={The Astrophysical Journal Supplement Series},
  year={2006},
  volume={166},
  pages={351 - 377}
}
We have obtained Spitzer Space Telescope Infrared Spectrograph (IRS) 5.5-35 μm spectra of 59 main-sequence stars that possess IRAS 60 μm excess. The spectra of five objects possess spectral features that are well-modeled using micron-sized grains and silicates with crystalline mass fractions 0%-80%, consistent with T Tauri and Herbig AeBe stars. With the exception of η Crv, these objects are young with ages ≤50 Myr. Our fits require the presence of a cool blackbody continuum, Tgr = 80-200 K, in… 

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