Optical spectroscopy and photometry of main-belt asteroids with a high orbital inclination

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Abstract

We carried out low-resolution optical spectroscopy of 51 main-belt asteroids, most of which have highly-inclined orbits. They are selected from D-type candidates in the SDSS-MOC 4 catalog. Using the University of Hawaii 2.2m telescope and the Inter-University Centre for Astronomy and Astrophysics 2m telescope in India, we determined the spectral types of 38 asteroids. Among them, eight asteroids were classified as D-type asteroids. Fractions of D-type asteroids are 3.0±1.1% for low orbital inclination main-belt asteroids and 7.3 ±2.0% for high orbital inclination main-belt asteroids. The results of our study indicate that some D-type asteroids were formed within the ecliptic region between the main belt and Jupiter, and were then perturbed by Jupiter.

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CITATION STYLE

APA

Iwai, A., Itoh, Y., Terai, T., Gupta, R., Sen, A., & Takahashi, J. (2017). Optical spectroscopy and photometry of main-belt asteroids with a high orbital inclination. Research in Astronomy and Astrophysics, 17(2). https://doi.org/10.1088/1674-4527/17/2/17

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