Optical Photometry Of Jovian Trojan Asteroids: Are Color And Inclination Correlated?

Details Optical Photometry Of Jovian Trojan Asteroids: Are Color And Inclination Correlated? Optical Photometry Of Jovian Trojan Asteroids: Are Color And Inclination Correlated?

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008dps....40.2826y&link_type=abstract

American Astronomical Society, DPS meeting #40, #28.26; Bulletin of the American Astronomical Society, Vol. 40, p.441

Astronomy and Astrophysics

Astronomy

Scientific paper

Were Jovian Trojans captured by Jupiter from the outer regions of the solar system or did they originate at their current location? The chemical and dynamical properties of these objects may help answer this question and shed light on the history of giant planet formation. Recently, Szabo et al. (2007) investigated the optical colors of 860 Trojans based on the Sloan Digital Sky Survey (SDSS). They found that the R - Z color indices of Trojans are weakly correlated with their orbital inclinations over the range 0 ≤ i ≤ 30°. Fornasier et al. (2007) also reported a similar weak correlation in the optical spectroscopy of 47 Trojans. These two independent studies suggest that the scatter in the color inclination relation is possibly masking a real correlation. The statistical significance of the relation can be ascertained from observations of Trojans over a larger range of inclinations. To test the purported relation, we obtained broadband B, V, R
photometry with the UH 2.2 meter telescope on Mauna Kea, for about 80 Trojan asteroids focusing specially on objects with high inclinations (i ≥ 30°). We will address
the implications of our findings for origins of Jovian Trojans.

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