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Photometric characterization of NEOs: 3 Amor and 3 Apollo★

2019; Oxford University Press; Volume: 484; Issue: 2 Linguagem: Inglês

10.1093/mnras/stz024

1365-2966

Eduardo Rondón, Plícida Arcoverde, Filipe Monteiro, Hissa Medeiros, Giuliat Navas, D. Lazzaro, J. Carvano, Teresinha Rodrigues,

Planetary Science and Exploration

We report the results based on a complete photometric characterization method for six near-Earth objects (NEOs), determining the rotational period, the taxonomic classification, the V − R colour, the absolute magnitude and the slope parameter. The data were acquired at the Observatório Astronômico do Sertão de Itaparica, for (138846) 2000 VJ61, 2016 WJ1 and (36236) 1999 VV, of the Apollo group, and (489337) 2006 UM, 2005 TF and (326683) 2002 WP, of the Amor group. The performed analysis enabled us to classify three objects in the S-complex, one in the C-complex and one as a V-type. An estimate of the effective diameter is also given for four of them. Throughout our work is evident the importance of performing a complete photometric characterization in order to derive reliable physical parameters. in particular, we show that the rotational lightcurve amplitude is a very important parameter that needs to be considered when deriving photometric magnitudes of NEOs.