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.
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Book ChapterDOI
Stellar occultations by Trans-Neptunian objects: From predictions to observations and prospects for the future
TL;DR: Most of the aspects involved in the complex process to successfully observe occultations are reviewed, and some of the lessons learned may allow an increase in the success rate and scientific output of the occultation technique applied to TNOs, in the short-term future.
Journal ArticleDOI
Rio survey of optical astrometric positions for 300 ICRF2 sources and the current optical/radio frame link status before Gaia
Marcelo Assafin,R. Vieira-Martins,A. H. Andrei,A. H. Andrei,Julio Camargo,D. N. da Silva Neto +5 more
TL;DR: In this paper, the authors investigated the possible causes for the observed non-coincidence between the optical and ICRF2 positions and found an analytical relation that describes the resulting centroid shift, as a function of the atmospheric seeing, the brightness ratio and the relative distance between the two contributing flux sources.
Journal ArticleDOI
Parallaxes of Southern Extremely Cool objects III: 118 L and T dwarfs
Richard L. Smart,Beatrice Bucciarelli,Hugh R. A. Jones,Federico Marocco,Alexandre Humberto Andrei,Bertrand Goldman,Rene A. Mendez,V. A. d'Ávila,Ben Burningham,Julio Camargo,Mariateresa Crosta,M. Daprà,James S. Jenkins,R. Lachaume,R. Lachaume,Massimiliano Lattanzi,J. L. Penna,D. J. Pinfield,D. N. da Silva Neto,Alessandro Sozzetti,Alberto Vecchiato +20 more
TL;DR: In this article, the parallaxes, proper motions and multiepoch photometry of L and early T dwarfs were measured using 108 nights over the course of 8 yr using the Wide Field Imager on the ESO 2.2m telescope.
Journal ArticleDOI
Astrometry of mutual approximations between natural satellites. Application to the Galilean moons
B. E. Morgado,B. E. Morgado,Marcelo Assafin,R. Vieira-Martins,R. Vieira-Martins,Julio Camargo,A. Dias-Oliveira,A. R. Gomes-Júnior +7 more
TL;DR: In this paper, the authors developed a method that can provide accurate astrometric data for natural satellites, the mutual approximations, which can be applied when any two satellites pass close by each other in the apparent sky plane.
Journal ArticleDOI
The structure of Chariklo's rings from stellar occultations
Diane Berard,Bruno Sicardy,Julio Camargo,Josselin Desmars,Felipe Braga-Ribas,J. L. Ortiz,Rene Duffard,Nicolás Morales,E. Meza,Rodrigo Leiva,G. Benedetti-Rossi,Roberto Vieira-Martins,A. R. Gomes-Junior,Marcelo Assafin,F. Colas,Jean-Luc Dauvergne,Pierre Kervella,Jean Lecacheux,L. Maquet,Frédéric Vachier,S. Renner,B. Monard,A. A. Sickafoose,H. Breytenbach,Anja Genade,W. Beisker,K. L. Bath,H.-J. Bode,Michael Backes,Valentin D. Ivanov,Emmanuel Jehin,Michaël Gillon,Jean Manfroid,Joe Pollock,Gonzalo Tancredi,S. Roland,R. Salvo,L. Vanzi,Dave Herald,D. Gault,S. Kerr,H. Pavlov,K. M. Hill,J. Bradshaw,M. A. Barry,A. Cool,B. Lade,Andrew A. Cole,J. Broughton,J. Newman,R. Horvart,D. Maybour,D. Giles,L. Davis,R. A. Paton,B. Loader,A. Pennell,P. D. Jaquiery,Stephane Brillant,Fernando Selman,Christophe Dumas,C. Herrera,G. Carraro,Lorenzo Monaco,Alain Maury,A. Peyrot,J.-P. Teng-Chuen-Yu,Andrea Richichi,Puji Irawati,C. De Witt,P. Schoenau,R. Prager,C. Colazo,R. Melia,J. Spagnotto,A. Blain,S. Alonso,A. Román,Pablo Santos-Sanz,J. L. Rizos,J. L. Maestre,D. Dunham +81 more
TL;DR: In this article, the authors used 12 successful occulations by Chariklo observed between 2014 and 2016 to provide ring profiles (physical width, opacity, edge structure) and constraints on the radii and pole position.