A spectral comparison of (379) Huenna and its satellite
arXiv:1102.1623 · doi:10.1016/j.icarus.2011.02.002
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.
6 pages, 4 figures, 2 tables - Accepted for publication in Icarus
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- Extreme AO Observations of Two Triple Asteroid Systems with SPHERE
- The Origin of (90) Antiope From Component-Resolved Near-Infrared Spectroscopy