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Title:
Component-resolved near-infrared spectra of the (22) Kalliope system
Authors:
Laver, Conor; de Pater, Imke; Marchis, Franck; Ádámkovics, Máté; Wong, Michael H.
Affiliation:
AA(Department of Astronomy, 601 Campbell Hall, University of California, Berkeley, CA 94720, USA), AB(Department of Astronomy, 601 Campbell Hall, University of California, Berkeley, CA 94720, USA), AC(Department of Astronomy, 601 Campbell Hall, University of California, Berkeley, CA 94720, USA; SETI Institute, 515 Whisman Rd., Mountain View, CA 94043, USA), AD(Department of Astronomy, 601 Campbell Hall, University of California, Berkeley, CA 94720, USA), AE(Department of Astronomy, 601 Campbell Hall, University of California, Berkeley, CA 94720, USA)
Publication:
Icarus, Volume 204, Issue 2, p. 574-579. (Icarus Homepage)
Publication Date:
12/2009
Origin:
ELSEVIER
Abstract Copyright:
Elsevier Inc.
DOI:
10.1016/j.icarus.2009.07.002
Bibliographic Code:
2009Icar..204..574L

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 2 telescope on March 25, 2008. We present, for the first time, component-resolved spectra acquired simultaneously in each of the Zbb (1–1.18 μm), Jbb (1.18–1.42 μm), Hbb (1.47–1.80 μm), and Kbb (1.97–2.38 μm) 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.
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