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http://hdl.handle.net/20.500.12386/26951
Titolo: | The olivine-dominated composition of the Eureka family of Mars Trojan asteroids | Autori: | Borisov, G. Christou, A. Bagnulo, S. CELLINO, Alberto Kwiatkowski, T. DELL'ORO, Aldo |
Data pubblicazione: | 2017 | Rivista: | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | Numero: | 466 | Fascicolo: | 1 | Da pagina:: | 489 | Abstract: | We have used the XSHOOTER echelle spectrograph on the European Southern Obseratory (ESO) Very Large Telescope (VLT) to obtain UVB-VIS-NIR (ultraviolet-blue (UVB), visible (VIS) and near-infrared (NIR)) reflectance spectra of two members of the Eureka family of L5 Mars Trojans, in order to test a genetic relationship to Eureka. In addition to obtaining spectra, we also carried out VRI photometry of one of the VLT targets using the 2-m telescope at the Bulgarian National Astronomical Observatory - Rozhen and the two-channel focal reducer. We found that these asteroids belong to the olivine-dominated A, or S<SUB>a</SUB>, taxonomic class. As Eureka itself is also an olivine-dominated asteroid, it is likely that all family asteroids share a common origin and composition. We discuss the significance of these results in terms of the origin of the martian Trojan population. | URI: | http://hdl.handle.net/20.500.12386/26951 | URL: | https://academic.oup.com/mnras/article/466/1/489/2608775 | ISSN: | 0035-8711 | DOI: | 10.1093/mnras/stw3075 | Bibcode ADS: | 2017MNRAS.466..489B | Fulltext: | open |
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