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.
@article{arxiv.0907.2220,
title = {Component-resolved Near-infrared Spectra of the (22) Kalliope System},
author = {Conor Laver and Imke de Pater and Franck Marchis and Mate Adamkovics and Michael H. Wong},
journal= {arXiv preprint arXiv:0907.2220},
year = {2015}
}
Comments
20 pages, 5 figures, 1 table. Accepted for publication in Icarus