Astron. Astrophys. Suppl. Ser.
Volume 134, Number 3, February I 1999
|Page(s)||463 - 471|
|Published online||15 February 1999|
CNPq/Observatório Nacional Depto. Astrofísica, 20921-400 Rio de Janeiro, Brazil e-mail: firstname.lastname@example.org, email@example.com
2 CEFET, Depto. Física, 80000 Curitiba, Brazil
Accepted: 4 September 1998
We present spectroscopic observations of 36 asteroids, members of the Themis family. These observations were carried on at the European Southern Observatory in the wavelength range Å. Most of the objects present a spectra similar to C-type asteroids and some of them present indicative of aqueous alteration. We discuss the implications of these results on the formation and evolution of this family.
Key words: minor planets, asteroids
Based on observations made with the 1.52 m telescope at the European Southern Observatory (La Silla, Chile) under the agreement with the CNPq/ Observatório Nacional.
Table A1 is available at the CDS via anonymous ftp 220.127.116.11 or http://cdsweb.u-strasbg.fr/Abstract.html
© European Southern Observatory (ESO), 1999