Search for rotational variation in the spectra of 253 Mathilde.

Details Search for rotational variation in the spectra of 253 Mathilde. Search for rotational variation in the spectra of 253 Mathilde.

Sep 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997a%26a...325l...9d&link_type=abstract

Astronomy and Astrophysics, v.325, p.L9-L11

Astronomy and Astrophysics

Astrophysics

2

Asteroid Spectroscopy

Scientific paper

253 Mathilde will be the next asteroid to be visited by a spacecraft (NEAR). Mathilde is an exceptional slow and complex rotator with a period of 17.4 days (Mottola et al., 1995P&SS...43.1609M). Binzel et al. (1996Icar..119..447B) have obtained the first spectrum of Mathilde in the visible range. To search for any variation on the asteroid surface, we have performed several observations in the visible range at the European Southern Observatory (ESO). The results show, combined with the spectrum of Binzel, that Mathilde's surface is homogeneous over almost half of its rotational period. C type asteroids to which 253 Mathilde belongs, often show some absorption features due to aqueous alteration. Our spectroscopic surface analysis reveal featureless spectra.

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