@Article{Gomes-JúniorGBAVCSTGBBBBDDDEEHJMMMMPSW:2015:ReTwMu,
author = "Gomes-J{\'u}nior, A. R. and Giacchini, B. L. and Braga-Ribas, F.
and Assafin, M. and Vieira-Martins, R. and Camargo, J. I. B. and
Sicardy, B. and Timerson, B. and George, T. and Broughton, J. and
Blank, T. and Benedetti-Rossi, G. and Brooks, J. and Dantowitz, R.
F. and Dunham, D. W. and Dunham, J. B. and Ellington, C. K. and
Emilio, M. and Herpich, F. R. and Jacques, C. and Maley, P. D. and
Mehret, L. and Mello, A. J. T. and Milone, Andr{\'e} de Castro
and Pimentel, E. and Schoenell, W. and Weber, N. S.",
affiliation = "{Universidade Federal do Rio de Janeiro (UFRJ)} and {Centro
Brasileiro de Pesquisas F{\'{\i}}sica (CBPF)} and
{Observat{\'o}rio Nacional (ON)} and {Universidade Federal do Rio
de Janeiro (UFRJ)} and {Universidade Federal do Rio de Janeiro
(UFRJ)} and {Observat{\'o}rio Nacional (ON)} and {Observatoire de
Paris} and {International Occultation Timing Association} and
{International Occultation Timing Association} and {RASNZ
Occultation Section} and {International Occultation Timing
Association} and {Observat{\'o}rio Nacional (ON)} and
{International Occultation Timing Association} and {Clay Center
Observatory at Dexter Southfield} and {International Occultation
Timing Association} and {International Occultation Timing
Association} and {International Occultation Timing Association}
and {Universidade Estadual de Ponta Grossa} and {Universidade
Federal de Santa Catarina (UFSC)} and {Se{\c{c}}{\~a}o de
Oculta{\c{c}}{\^o}es/REA-Brasil} and {International Occultation
Timing Association} and {Universidade Estadual de Ponta Grossa}
and {Universidade Tecnol{\'o}gica Federal do Paran{\'a} (UTFPR)}
and {Instituto Nacional de Pesquisas Espaciais (INPE)} and
{Se{\c{c}}{\~a}o de Oculta{\c{c}}{\^o}es/REA-Brasil} and
{Universidade Federal de Santa Catarina (UFSC)} and {Centro de
Estudos Astron{\^o}micos de Minas Gerais}",
title = "Results of two multichord stellar occultations by dwarf planet (1)
Ceres",
journal = "Monthly Notices of the Royal Astronomical Society",
year = "2015",
volume = "451",
number = "3",
pages = "2295--2302",
keywords = "Minor planets, asteroids: individual: (1, Ceres), Occultations,
Planets and satellites: fundamental parameters.",
abstract = "We report the results of two multichord stellar occultations by
the dwarf planet (1) Ceres that were observed from Brazil on 2010
August 17, and from the USA on 2013 October 25. Four positive
detections were obtained for the 2010 occultation, and nine for
the 2013 occultation. Elliptical models were adjusted to the
observed chords to obtain Ceres' size and shape. Two limb-fitting
solutions were studied for each event. The first one is a nominal
solution with an indeterminate polar aspect angle. The second one
was constrained by the pole coordinates as given by Drummond et
al. Assuming a Maclaurin spheroid, we determine an equatorial
diameter of 972 ± 6 km and an apparent oblateness of 0.08 ± 0.03
as our best solution. These results are compared to all available
size and shape determinations for Ceres made so far, and shall be
confirmed by the NASA's Dawn space mission.",
doi = "10.1093/mnras/stv1081",
url = "http://dx.doi.org/10.1093/mnras/stv1081",
issn = "0035-8711 and 1365-2966",
language = "en",
urlaccessdate = "27 abr. 2024"
}