Spectroscopic observations of Jupiter Trojans

Details Spectroscopic observations of Jupiter Trojans Spectroscopic observations of Jupiter Trojans

Apr 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004icar..168..374b&link_type=abstract

Icarus, Volume 168, Issue 2, p. 374-384.

Physics

14

Asteroids, Spectroscopy

Scientific paper

We present the results of a campaign of spectroscopic observations of Jupiter Trojan asteroids. Thirty-four objects were observed during three runs in July and November 1998, and March 2002 using the Danish 1.54-m telescope at ESO. The covered spectral range was between 5000 and 9000 Å. Our observations include objects belonging both L4 to L5 clouds. According to analyses of previous investigations of Trojans, the spectra of different taxonomic classes can be separated on the basis of the slope of the reflectance spectrum. The large majority of the objects of our sample have been found to belong to the D taxonomic class, but we found also objects of P- and C-type. In two cases, we found also evidence of blueish spectral trends. Our data are important, since they allow us to substantially enlarge the whole data set of available Trojan spectra.

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