Rotationally Resolved Spectra of Some S-type Asteroids

✍ Scribed by Thais Mothé-Diniz; Daniela Lazzaro; Jorge Márcio Carvano; Marcos Florczak

• Publisher: Elsevier Science
• Year: 2000
• Tongue: English
• Weight: 277 KB
• Volume: 148
• Category: Article
• ISSN: 0019-1035
• DOI: 10.1006/icar.2000.6488

✦ Synopsis

We report rotationally resolved spectra of six S-type asteroids obtained at ESO in the wavelength range 4900-9200 Å. The sample was chosen to span most of the sub-classes defined by M. Gaffey et al. (1993, Icarus 106, 573-602). Three other asteroids of different taxonomic class were also analyzed in order to compare the variations observed among the S-type asteroids. Only two of the S-types belonging to sub-classes mineralogicaly distinct presented significant variations, as well as the P-type asteroid present in our sample. All the other asteroids have variations of the order of the noise of the spectrum and were not considered as significant.