M
Marcelo Emilio
Researcher at Ponta Grossa State University
Publications - 62
Citations - 1852
Marcelo Emilio is an academic researcher from Ponta Grossa State University. The author has contributed to research in topics: Light curve & Stars. The author has an hindex of 20, co-authored 60 publications receiving 1718 citations. Previous affiliations of Marcelo Emilio include Michigan Career and Technical Institute & University of Hawaii.
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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
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
The B0.5IVe CoRoT target HD 49330 - I. Photometric analysis from CoRoT data
A. L. Huat,Anne-Marie Hubert,F. Baudin,Michele Floquet,Coralie Neiner,Y. Frémat,Y. Frémat,Juan Gutiérrez-Soto,L. Andrade,B. de Batz,P. D. Diago,Marcelo Emilio,F. Espinosa Lara,Juan Fabregat,Eduardo Janot-Pacheco,B. Leroy,Christophe Martayan,Christophe Martayan,T. Semaan,J. Suso,M. Auvergne,C. Catala,Eric Michel,R. Samadi +23 more
TL;DR: In this article, the pulsational behavior of the early B0.5IVe star HD 49330 observed during the first CoRoT long run towards the Galactical anticenter (LRA1) was analyzed.
Journal ArticleDOI
On the Constancy of the Solar Diameter. II.
TL;DR: The Michelson Doppler Imager instrument on board SOHO has operated for most of a solar cycle as mentioned in this paper, and the data obtained with it from above the Earth's turbulent atmosphere yield the most accurate direct constraint on possible solar radius variations on timescales from minutes to years.