Author/Authors :
DeMeo، نويسنده , , Francesca E. and Carry، نويسنده , , Benoît and Marchis، نويسنده , , Franck and Birlan، نويسنده , , Mirel and Binzel، نويسنده , , Richard P. and Bus، نويسنده , , Schelte J. and Descamps، نويسنده , , Pascal and Nedelcu، نويسنده , , Alin and Busch، نويسنده , , Michael and Bouy، نويسنده , , Hervé، نويسنده ,
Abstract :
We present near-infrared spectral measurements of Themis family Asteroid (379) Huenna (D ∼ 98 km) and its 6 km satellite using SpeX on the NASA IRTF. The companion was farther than 1.5″ from the primary at the time of observations and was approximately 5 magnitudes dimmer. We describe a method for separating and extracting the signal of a companion asteroid when the signal is not entirely resolved from the primary. The spectrum of (379) Huenna has a broad, shallow feature near 1 μm and a low slope, characteristic of C-type asteroids. The secondary’s spectrum is consistent with the taxonomic classification of C-complex or X-complex. The quality of the data was not sufficient to identify any subtle feature in the secondary’s spectrum.
