Component-resolved Near-infrared Spectra of the (22) Kalliope System
arXiv:0907.2220 · doi:10.1016/j.icarus.2009.07.002
Abstract
We observed (22) Kalliope and its companion Linus with the integral-field spectrograph OSIRIS, which is coupled to the adaptive optics system at the W.M. Keck II telescope on March 25 2008. We present, for the first time, component-resolved spectra acquired simultaneously in each of the Zbb (1-1.18 um), Jbb (1.18-1.42 um), Hbb (1.47-1.80 um), and Kbb (1.97-2.38 um) bands. The spectra of the two bodies are remarkably similar and imply that both bodies were formed at the same time from the same material; such as via incomplete re-accretion after a major impact on the precursor body.
20 pages, 5 figures, 1 table. Accepted for publication in Icarus