THE SIZE, SHAPE, ALBEDO, DENSITY, AND ATMOSPHERIC LIMIT OF TRANSNEPTUNIAN OBJECT (50000) QUAOAR FROM MULTI-CHORD STELLAR OCCULTATIONS

Braga-Ribas, F.; Sicardy, B.; L. Ortiz, J.; Lellouch, E.; Tancredi, G.; Lecacheux, J.; Vieira-Martins, R.; I. B. Camargo, J.; Assafin, M.; Behrend, R.; Vachier, F.; Colas, F.; Morales, N.; Maury, A.; Emílio, M.; Amorim, A.; Unda-Sanzana, E.; Roland, S.; Sebastián Bruzzone, Juan; A. Almeida, L.; V. Rodrigues, C.; Jacques, C.; Gil-Hutton, R.; Vanzi, L.; Milone, A.; Schoenell, W.; De Salvo, R.; Almenares, L.; Jehin, Emmanuël; Manfroid, J.; Sposetti, S.; Tanga, P.; Klotz, A.; Frappa, Eric; Cacella, P.; P. Colque, J.; Neves, C.; Manuel Álvarez, Eduardo; Gillon, M.; Pimentel, E.; L. Giacchini, Breno; Roques, Françoise; Widemann, Thomas; S. Magalhães, V.; Thirouin, Audrey; Duffárd, R.; Leiva, Rodrigo; Toledo, I.; Capeche, J.; Beisker, W.; Pollock, J.; E. Cedeño Montaña, C.; Ivarsen, K.; Reichart, D.; Haislip, J.; Lacluyzé, A.

doi:10.1088/0004-637x/773/1/26

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THE SIZE, SHAPE, ALBEDO, DENSITY, AND ATMOSPHERIC LIMIT OF TRANSNEPTUNIAN OBJECT (50000) QUAOAR FROM MULTI-CHORD STELLAR OCCULTATIONS

Published in The Astrophysical Journal • Jul 22, 2013

Authors:

F. Braga-Ribas

B. Sicardy

J. L. Ortiz

Abstract

We present results derived from the first multi-chord stellar occultations by the transneptunian object (50000) Quaoar, observed on 2011 May 4 and 2012 February 17, and from a single-chord occultation observed on 2012 October 15. If the timing of the five chords obtained in 2011 were correct, then Q...

Subject

Geometric albedo

Occultation

Chord (peer-to-peer)

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