Please use this identifier to cite or link to this item: http://hdl.handle.net/10316/4395
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dc.contributor.authorBelskaya, I.N.-
dc.contributor.authorOrtiz, J.L.-
dc.contributor.authorRousselot, P.-
dc.contributor.authorIvanova, V.-
dc.contributor.authorBorisov, G.-
dc.contributor.authorShevchenko, V.G.-
dc.contributor.authorPeixinho, N.-
dc.date.accessioned2008-09-01T11:06:23Z-
dc.date.available2008-09-01T11:06:23Z-
dc.date.issued2006en_US
dc.identifier.citationIcarus. 184:1 (2006) 277-284en_US
dc.identifier.urihttp://hdl.handle.net/10316/4395-
dc.description.abstractWe present the results of photometric observations of trans-neptunian object 20000 Varuna, which were obtained during 7 nights in November 2004-February 2005. The analysis of new and available photometric observations of Varuna reveals a pronounced opposition surge at phase angles less than 0.1 deg with amplitude of 0.2 mag relatively to the extrapolation of the linear part of magnitude-phase dependence to zero phase angle. The opposition surge of Varuna is markedly different from that of dark asteroids while quite typical for moderate albedo Solar System bodies. We find an indication of variations of the scattering properties over Varuna's surface that could result in an increase of the lightcurve amplitude toward zero phase angle. It is shown that a similar phase effect can be responsible for lightcurve changes found for TNO 19308 (1996 TO66) in 1997-1999.en_US
dc.description.urihttp://www.sciencedirect.com/science/article/B6WGF-4K4PSTX-2/1/447c751a99c7de80e8073e91841b1879en_US
dc.format.mimetypeaplication/PDFen
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectTrans-neptunian objectsen_US
dc.subjectAsteroidsen_US
dc.subjectPhotometryen_US
dc.titleLow phase angle effects in photometry of trans-neptunian objects: 20000 Varuna and 19308 (1996 TO66)en_US
dc.typearticleen_US
item.fulltextCom Texto completo-
item.grantfulltextopen-
item.languageiso639-1en-
Appears in Collections:FCTUC Física - Artigos em Revistas Internacionais
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