J
Julio Camargo
Researcher at Michigan Career and Technical Institute
Publications - 128
Citations - 2920
Julio Camargo is an academic researcher from Michigan Career and Technical Institute. The author has contributed to research in topics: Astrometry & Ephemeris. The author has an hindex of 27, co-authored 123 publications receiving 2560 citations. Previous affiliations of Julio Camargo include Centre national de la recherche scientifique & Universidade Federal do Rio Grande do Sul.
Papers
More filters
Journal ArticleDOI
A ring system detected around the centaur (10199) chariklo
Felipe Braga-Ribas,Bruno Sicardy,Jose Luis Ortiz,Colin Snodgrass,F. Roques,R. Vieira-Martins,R. Vieira-Martins,R. Vieira-Martins,Julio Camargo,Marcelo Assafin,Rene Duffard,Emmanuel Jehin,Joe Pollock,Rodrigo Leiva,Marcelo Emilio,D. I. Machado,C. Colazo,E. Lellouch,Jesper Skottfelt,Jesper Skottfelt,Michaël Gillon,N. Ligier,L. Maquet,G. Benedetti-Rossi,A. Ramos Gomes,Pierre Kervella,Hektor Monteiro,Rafael Sfair,M. El Moutamid,M. El Moutamid,Gonzalo Tancredi,J. Spagnotto,Alain Maury,Nicolás Morales,Ricardo Gil-Hutton,S. Roland,A. Ceretta,Shenghong Gu,Xuefeng Wang,Kasper Harpsøe,Kasper Harpsøe,Markus Rabus,Markus Rabus,Jean Manfroid,Cyrielle Opitom,L. Vanzi,L. Mehret,L. Lorenzini,E. M. Schneiter,R. Melia,J. Lecacheux,François Colas,Frédéric Vachier,Thomas Widemann,L. Almenares,R. G. Sandness,F. Char,V. Perez,P. Lemos,Nicolás Marín Martínez,U. G. Jørgensen,U. G. Jørgensen,Martin Dominik,Fernando Roig,Daniel E. Reichart,Aaron P. LaCluyze,J. B. Haislip,K. M. Ivarsen,J. P. Moore,N. R. Frank,D. G. Lambas,D. G. Lambas +71 more
TL;DR: Observations of a multichord stellar occultation revealed the presence of a ring system around (10199) Chariklo, which is a Centaur—that is, one of a class of small objects orbiting primarily between Jupiter and Neptune—with an equivalent radius of 124 9 kilometres.
Journal ArticleDOI
A Pluto-like radius and a high albedo for the dwarf planet Eris from an occultation
Bruno Sicardy,Bruno Sicardy,Jose Luis Ortiz,Marcelo Assafin,Emmanuel Jehin,Alain Maury,E. Lellouch,R. Gil Hutton,Felipe Braga-Ribas,François Colas,Daniel Hestroffer,J. Lecacheux,F. Roques,P. Santos-Sanz,Thomas Widemann,Nicolás Morales,Rene Duffard,Audrey Thirouin,A. J. Castro-Tirado,Martin Jelínek,Petr Kubánek,Alfredo Sota,R. Sanchez-Ramirez,Alexandre Humberto Andrei,Julio Camargo,D. N. da Silva Neto,A. Ramos Gomes,R. Vieira Martins,R. Vieira Martins,Michaël Gillon,Jean Manfroid,G. P. Tozzi,C. Harlingten,S. Saravia,Raoul Behrend,Stefano Mottola,E. García Melendo,V. Peris,Juan Fabregat,José M. Madiedo,L. Cuesta,M. T. Eibe,A. Ullán,F. Organero,S. Pastor,J.A. de los Reyes,S. Pedraz,A. Castro,I. de la Cueva,G. Muler,Iain A. Steele,M. Cebrián,Pilar Montañés-Rodríguez,Alejandro Oscoz,D. Weaver,C. Jacques,W. J. B. Corradi,Fabio P. Santos,Wilson Reis,A. Milone,Marcelo Emilio,L. Gutiérrez,Roberto Vázquez,H. Hernández-Toledo +63 more
TL;DR: The observation of a multi-chord stellar occultation by Eris on 6 November 2010 is reported, consistent with a spherical shape for Eris, and it is anticipated that this atmosphere may periodically sublimate as Eris approaches its perihelion, at 37.8 astronomical units from the Sun.
Journal ArticleDOI
The size, shape, density and ring of the dwarf planet Haumea from a stellar occultation
Jose Luis Ortiz,Pablo Santos-Sanz,Bruno Sicardy,G. Benedetti-Rossi,Diane Berard,Nicolás Morales,Rene Duffard,Felipe Braga-Ribas,Ulrich Hopp,C. Ries,Valerio Nascimbeni,Valerio Nascimbeni,Francesco Marzari,V. Granata,V. Granata,András Pál,Cs. Kiss,Theodor Pribulla,R. Komžík,Kamil Hornoch,Petr Pravec,Paolo Bacci,Martina Maestripieri,L. Nerli,L. Mazzei,Mauro Bachini,F. Martinelli,Giacomo Succi,F. Ciabattari,Herman Mikuz,A. Carbognani,B. Gaehrken,Stefano Mottola,S. Hellmich,F. L. Rommel,Estela Fernández-Valenzuela,A. Campo Bagatin,Stefan Cikota,Aleksandar Cikota,J. Lecacheux,Roberto Vieira-Martins,Julio Camargo,Marcelo Assafin,François Colas,Raoul Behrend,Josselin Desmars,E. Meza,Alvaro Alvarez-Candal,W. Beisker,A. R. Gomes-Júnior,B. E. Morgado,Françoise Roques,Frédéric Vachier,Jérôme Berthier,T. G. Mueller,José M. Madiedo,Ozan Ünsalan,Eda Sonbas,N. Karaman,O. Erece,D. T. Koseoglu,T. Ozisik,S. Kalkan,Yavuz Güney,Mohammad Shameoni Niaei,O. Satir,Cahit Yeşilyaprak,Ç. Püsküllü,Afşar Kabaş,Osman Demircan,J. Alikakos,Vassilis Charmandaris,Giuseppe Leto,J. M. Ohlert,J. M. Christille,Róbert Szakáts,A. Takácsné Farkas,E. Varga-Verebélyi,Gábor Marton,A. Marciniak,Przemyslaw Bartczak,Toni Santana-Ros,M. Butkiewicz-Bąk,Grzegorz Dudziński,Victor Ali-Lagoa,Kosmas Gazeas,L. Tzouganatos,N. Paschalis,V. Tsamis,Agustín Sánchez-Lavega,Santiago Pérez-Hoyos,Ricardo Hueso,J. C. Guirado,V. Peris,R. Iglesias-Marzoa +94 more
TL;DR: Observations from multiple Earth-based observatories of Haumea passing in front of a distant star (a multi-chord stellar occultation) report the presence of a ring with an opacity of 0.5, which constrains the three-dimensional orientation of Haumesa and its triaxial shape, which is inconsistent with a homogeneous body in hydrostatic equilibrium.
Journal ArticleDOI
Albedo and atmospheric constraints of dwarf planet Makemake from a stellar occultation
Jose Luis Ortiz,Bruno Sicardy,Felipe Braga-Ribas,Alvaro Alvarez-Candal,Emmanuel Lellouch,Rene Duffard,Noemi Pinilla-Alonso,Valentin D. Ivanov,S. P. Littlefair,Julio Camargo,Marcelo Assafin,Eduardo Unda-Sanzana,Emmanuel Jehin,Nicolás Morales,Gonzalo Tancredi,Ricardo Gil-Hutton,I. de la Cueva,J. P. Colque,D. N. da Silva Neto,Jean Manfroid,Audrey Thirouin,P. J. Gutiérrez,J. Lecacheux,Michaël Gillon,Alain Maury,François Colas,Javier Licandro,T. G. Mueller,C. Jacques,D. Weaver,A. Milone,R. Salvo,Sebastian Bruzzone,F. Organero,Raoul Behrend,S. Roland,R. Vieira-Martins,Thomas Widemann,F. Roques,Pablo Santos-Sanz,Daniel Hestroffer,V. S. Dhillon,T. R. Marsh,C. Harlingten,A. Campo Bagatin,M.L. Alonso,M. Ortiz,C. Colazo,H. J. F. Lima,Alexandre S. Oliveira,Leandro Kerber,Rodolfo Smiljanic,E. Pimentel,Breno L. Giacchini,P. Cacella,Marcelo Emilio +55 more
TL;DR: The disappearances and reappearances of the star were abrupt, showing that Makemake has no global Pluto-like atmosphere at an upper limit of 4–12 nanobar (1σ) for the surface pressure, although a localized atmosphere is possible.
Journal ArticleDOI
Triplicity and physical characteristics of Asteroid (216) Kleopatra
Pascal Descamps,Franck Marchis,Franck Marchis,Franck Marchis,Jérôme Berthier,Josh Emery,Gaspard Duchêne,Gaspard Duchêne,I. de Pater,Michael H. Wong,Lucy F. Lim,H. B. Hammel,Frédéric Vachier,P. Wiggins,J.-P. Teng-Chuen-Yu,A. Peyrot,Joe Pollock,Marcelo Assafin,Roberto Vieira-Martins,Julio Camargo,Felipe Braga-Ribas,B. Macomber +21 more
TL;DR: Green et al. as discussed by the authors used near-infrared adaptive optics (AO) imaging with the W.M. Keck II telescope to capture unprecedented high resolution images of this unusual asteroid.