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Astron. Astrophys. 327, 388-391 (1997)

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5836 1993 MF

This object, with an estimated diameter of about 6 km, has a rotational period of 4.959 hours (Mottola et al., 1995 and Wisniewski et al. 1996). The spectrum of this asteroid that we obtained (Fig. 3) shows an absorption feature centered around 6000 Å which is suggestive of the presence of aqueous altered materials and found in some C and S asteroids also by Vilas et al. (1992, 1994) and Hiroi et al. (1996). This feature is even more evident when we compare the spectrum of 1993 MF with that of L4-type OC (Fig. 3): there is a good match between the two except around 6000 Å where there is the absorption band.

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© European Southern Observatory (ESO) 1997

Online publication: April 8, 1998
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