NASA NTRS · 19930009969
Spectroscopy of D-type asteroids
Abstract
We have performed a spectroscopic survey of 19 D-type asteroids. Comparison with previous photometry shows excellent agreement. Although the majority have similar colors to cometary nuclei, no cometary emission bands were present in any of the spectra. Absorption bands sporadically appearing were apparently due to stellar objects, and no features inherent to the asteroids were observed.
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Fitzsimmons, Alan, Dahlgren, Mats, Lagerkvist, C.-I., Magnusson, Per, Williams, I. P.. 1992-01-01. Spectroscopy of D-type asteroids. https://ntrs.nasa.gov/citations/19930009969
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