The two rings of (50000) Quaoar

L. Pereira, C.; Sicardy, B.; E. Morgado, B.; Braga-Ribas, F.; Fernández-Valenzuela, E.; Souami, D.; J. Holler, Bryan; C. Boufleur, R.; Margoti, G.; Assafin, M.; L. Ortiz, J.; Santos-Sanz, P.; Épinat, B.; Kervella, P.; Desmars, J.; Vieira-Martins, R.; Kılıç, Y.; R. Gomes-Júnior, A.; I. B. Camargo, J.; Emílio, M.; Vara-Lubiano, M.; Kretlow, M.; Albert, Loïc; Alcock, Charles; G. Ball, J.; Bender, K.; W. Buie, M.; Butterfield, K.; Camarca, M.; H. Castro-Chacón, J.; Dunford, R.; S. Fisher, R.; Gamble, D.; C. Geary, J.; L. Gnilka, Crystal; D. Green, K.; D. Hartman, Z.; Huang, Chung-Kai; Januszewski, H.; Johnston, J.; Kagitani, M.; Kamin, R.; J. Kavelaars, J.; M. Keller, J.; de Kleer, Katherine; J. Lehner, M.; Luken, A.; Marchis, Franck; Marlin, T.; McGregor, Kyle; Nikitin, V.; Nolthenius, R.; Patrick, C.; Redfield, Seth; W. Rengstorf, A.; Reyes‐Ruiz, M.; Seccull, Tom; F. Skrutskie, M.; B. Smith, A.; Sproul, M.; W. Stephens, Andrew; Szentgyorgyi, Andrew; Sánchez-Sanjuán, Sergio; Tatsumi, Eri; Verbiscer, A.; Wang, Shiang‐Yu; Yoshida, Fumi; Young, R.; Zhang, Zhongwei

doi:10.1051/0004-6361/202346365

Public

The two rings of (50000) Quaoar

Published in Astronomy and Astrophysics • Apr 22, 2023

Authors:

C. L. Pereira

B. Sicardy

B. E. Morgado

Abstract

Context. Quaoar is a classical trans-Neptunian object (TNO) with an area-equivalent diameter of 1100 km and an orbital semi-major axis of 43.3 astronomical units. Based on stellar occultations observed between 2018 and 2021, an inhomogeneous ring (Q1R, i.e., Quaoar’s first ring) has been detected ar...

Subject

Physics

Occultation

Astrophysics

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