2005
DOI: 10.1051/0004-6361:20041152
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A study of Cybele asteroids

Abstract: Abstract. We have used the 3.5 m New Technology Telescope at ESO, La Silla, to obtain spectra of 18 asteroids belonging to the Cybele group. One additional Cybele asteroid was observed with the ESO 3.6 m telescope. From the spectra we have derived spectral slopes and taxonomy classifications. Our observations show that spectrally red D-type Cybeles tend to be smaller than more spectrally neutral P-and C-type objects from this group. Similar colour-diameter trends have previously been reported for other outer b… Show more

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Cited by 16 publications
(16 citation statements)
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“…Our classification of (3675) Kemstach is in agreement with the albedo value of p V = 0.181 ± 0.018 and with the taxonomic type reported by SDSS. The visible spectra obtained by Lagerkvist et al (2005) confirm its classification as an S-complex object.…”
Section: The S Complex Asteroids: S Nisupporting
confidence: 60%
“…Our classification of (3675) Kemstach is in agreement with the albedo value of p V = 0.181 ± 0.018 and with the taxonomic type reported by SDSS. The visible spectra obtained by Lagerkvist et al (2005) confirm its classification as an S-complex object.…”
Section: The S Complex Asteroids: S Nisupporting
confidence: 60%
“…Laboratory results indicate that the changes in the slope depend on dosages and on the original make-up of the surface (e.g., Moroz et al 2003Moroz et al , 2004, so there may be no easy answer as to what colors to expect on Trojans that have suffered various amounts of weathering. Observationally, Jewitt & Luu (1990) found a trend where smaller Trojans (i.e., Trojans with surfaces that are statistically younger) have redder surfaces, and this trend was corroborated for D-type asteroids by Fitzsimmons et al (1994), by Lagerkvist et al (2005) (for Cybeles), and by Dahlgren et al (1997) (for Hildas). Recent work on a wider sample of Trojans has let some workers study colors of "background" Trojans as distinct from those of Trojans in dynamical families.…”
Section: Originmentioning
confidence: 71%
“…No clear dependency of albedo on size is found for D-type asteroids in Figure 5d, while the number of detected D-types is relatively small. Some researchers have distinguished between the features of inner D-type and outer D-type varieties of D-type asteroids (e.g., Lagerkvist et al (2005); Mothé-Diniz ( 2009)). D-type asteroids dominate the Jovian Trojans, but become rarer at smaller heliocentric distances.…”
Section: Discussionmentioning
confidence: 99%