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Titolo:
Photometric and spectroscopic observations of Sycorax, satellite of Uranus
Autore:
Romon, J; de Bergh, C; Barucci, MA; Doressoundiram, A; Cuby, JG; LeBras, A; Doute, S; Schmitt, B;
Indirizzi:
Observ Paris, Meudon, France Observ Paris Meudon FranceObserv Paris, Meudon, France ESO, Santiago, Chile ESO Santiago ChileESO, Santiago, Chile IAS, Orsay, France IAS Orsay FranceIAS, Orsay, France Lab Planetol Grenoble, St Martin Dheres, France Lab Planetol Grenoble St Martin Dheres France St Martin Dheres, France
Titolo Testata:
ASTRONOMY & ASTROPHYSICS
fascicolo: 1, volume: 376, anno: 2001,
pagine: 310 - 315
SICI:
1432-0746(200109)376:1<310:PASOOS>2.0.ZU;2-N
Fonte:
ISI
Lingua:
ENG
Soggetto:
SPECTRAL DIVERSITY; KUIPER BELT; DISCOVERY; OBJECTS; CAPTURE; COMETS; MOONS; STARS;
Keywords:
planets and satellites : general; planets and satellites : individual : Sycorax;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
32
Recensione:
Indirizzi per estratti:
Indirizzo: Romon, J Observ Paris, Meudon, France Observ Paris Meudon FranceObserv Paris, Meudon, France
Citazione:
J. Romon et al., "Photometric and spectroscopic observations of Sycorax, satellite of Uranus", ASTRON ASTR, 376(1), 2001, pp. 310-315

Abstract

Sycorax is the brightest of the five irregular Uranian satellites recentlydiscovered. These satellites are supposed to be captured bodies. We present visible and near-infrared photometry, as well as near-infrared spectroscopy of Sycorax. The overall shape of the spectrum is quite puzzling: it has a red slope in the visible (such as Centaurs and Transneptunian objects), whereas the reflectivity strongly decreases beyond 1 mum and is rather at over the near-infrared range. We were not able to reproduce the spectral behaviour of Sycorax using simple materials. A rotational effect is suggested to explain the shape of the spectrum. BVRIJ magnitudes have been measured over a period of 1 hour, with five V measurements which do not show any strong variation. So only a strong change in the magnitude between the V measurements and the J measurement (30 min later) could explain the shape of the spectrum, but further investigation is required to conclude.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/04/20 alle ore 13:14:41