A Spectroscopically Unique Main Belt Asteroid: 10537 (1991 RY16)

Details A Spectroscopically Unique Main Belt Asteroid: 10537 (1991 RY16) A Spectroscopically Unique Main Belt Asteroid: 10537 (1991 RY16)

2008-06-13

arxiv.org/abs/0806.2185v1

The Astrophysical Journal, Volume 682, Issue 1, pp. L57-L60, (2008)

Astronomy and Astrophysics

Astrophysics

14 pages, 3 figures, to be published in ApJ Letters

Scientific paper

10.1086/591030

We present visible and near-infrared reflectance spectra and interpreted surface mineralogy for asteroid 10537 (1991 RY16). The spectrum of this object is without precedent amongst the Main Belt asteroids. A unique absorption band centered at 0.63 microns could be attributed to one of several mineralogies. Pronounced 1- and 2-micron absorption bands suggest that the composition of 10537 is a mixture of pyroxenes and olivine and that it originated from a parent body that was partially or fully differentiated. The closest available analog is the large Main Belt asteroid 349 Dembowska but 10537 may be an isolated fragment from a completely eroded parent body.

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