7 documents found, page 1 of 1
Stellar occultations enable milliarcsecond astrometry for Trans-Neptunian objec...
Rommel, F. L.; Braga-Ribas, F.; Desmars, J.; Camargo, J. I.B.; Ortiz, J. L.; Sicardy, B.; Vieira-Martins, R.; Assafin, M.; Santos-Sanz, P.; Duffard, R.Made available in DSpace on 2021-06-25T11:08:24Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-12-01; Context. Trans-Neptunian objects (TNOs) and Centaurs are remnants of our planetary system formation, and their physical properties have invaluable information for evolutionary theories. Stellar occultation is a ground-based method for studying these distant small bodies and has presented exciting result...
A multi-chord stellar occultation by the large trans-Neptunian object (174567) ...
Souami, D.; Braga-Ribas, F.; Sicardy, B.; Morgado, B.; Ortiz, J. L.; Desmars, J.; Camargo, J. I.B.; Vachier, F.; Berthier, J.; Carry, B.Made available in DSpace on 2021-06-25T10:16:12Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-11-01; Context. We present results from the first recorded stellar occultation by the large trans-Neptunian object (174567) Varda that was observed on September 10, 2018. Varda belongs to the high-inclination dynamically excited population, and has a satellite, Ilmarë, which is half the size of Varda. Aims. We...
The first observed stellar occultations by the irregular satellite Phoebe (Satu...
Gomes, A. R. [UNESP]; Assafin, M.; Braga-Ribas, F.; Benedetti-Rossi, G.; Morgado, B. E.; Camargo, J. I.B.; Vieira-Martins, R.; Desmars, J.; Sicardy, B.Made available in DSpace on 2020-12-12T01:15:09Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-02-01; We report six stellar occultations by Phoebe (Saturn IX), an irregular satellite of Saturn, obtained between mid-2017 and mid-2019. The 2017 July 6 event was the first stellar occultation by an irregular satellite ever observed. The occultation chords were compared to a 3D shape model of the satellite o...
The trans-Neptunian object (84922) 2003 VS2 through stellar occultations
Benedetti-Rossi, Gustavo; Santos-Sanz, P.; Ortiz, J. L.; Assafin, M.; Sicardy, B.; Morales, N.; Vieira-Martins, R.; Duffard, R.; Braga-Ribas, F.Made available in DSpace on 2020-12-12T01:16:44Z (GMT). No. of bitstreams: 0 Previous issue date: 2019-01-01; Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP); Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq); Horizon 2020 Framework Programme; Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ); Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES); ...
The large trans-Neptunian object 2002 TC302from combined stellar occultation, p...
Ortiz, J. L.; Santos-Sanz, P.; Sicardy, B.; Benedetti-Rossi, G.; Duffard, R.; Morales, N.; Braga-Ribas, F.; Fernández-Valenzuela, E.; Nascimbeni, V.Made available in DSpace on 2020-12-12T01:33:21Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-07-01; Context. Deriving physical properties of trans-Neptunian objects is important for the understanding of our Solar System. This requires observational efforts and the development of techniques suitable for these studies. Aims. Our aim is to characterize the large trans-Neptunian object (TNO) 2002 TC302. M...
Database on detected stellar occultations by small outer Solar System objects
Braga-Ribas, F.; Crispim, A.; Vieira-Martins, R.; Sicardy, B.; Ortiz, J. L.; Assafin, M.; Camargo, J. I.B.; Desmars, J.; Lecacheux, J.; Santos-Sanz, P.Made available in DSpace on 2020-12-12T01:08:37Z (GMT). No. of bitstreams: 0 Previous issue date: 2019-11-04; Observation of stellar occultation by objects of the Solar System is a powerful technique that allows measurements of size and shape of the small bodies with accuracies in the order of the kilometre. In addition, the occultation star probes the surroundings of the object, allowing the study of putative ...
Pluto's ephemeris from ground-based stellar occultations (1988-2016)
Desmars, J.; Meza, E.; Sicardy, B.; Assafin, M.; Camargo, J. I.B.; Braga-Ribas, F.; Benedetti-Rossi, G.; Dias-Oliveira, A.; Morgado, B.Made available in DSpace on 2019-10-06T15:54:14Z (GMT). No. of bitstreams: 0 Previous issue date: 2019-01-01; Context. From 1988 to 2016, several stellar occultations have been observed to characterise Pluto's atmosphere and its evolution. From each stellar occultation, an accurate astrometric position of Pluto at the observation epoch is derived. These positions mainly depend on the position of the occulted st...