Zobrazeno 1 - 10
of 204
pro vyhledávání: '"J A, DE MEDEIROS"'
Autor:
Charles Cadieux, Mykhaylo Plotnykov, René Doyon, Diana Valencia, Farbod Jahandar, Lisa Dang, Martin Turbet, Thomas J. Fauchez, Ryan Cloutier, Collin Cherubim, Étienne Artigau, Neil J. Cook, Billy Edwards, Tim Hallatt, Benjamin Charnay, François Bouchy, Romain Allart, Lucile Mignon, Frédérique Baron, Susana C. C. Barros, Björn Benneke, B. L. Canto Martins, Nicolas B. Cowan, J. R. De Medeiros, Xavier Delfosse, Elisa Delgado-Mena, Xavier Dumusque, David Ehrenreich, Yolanda G. C. Frensch, J. I. González Hernández, Nathan C. Hara, David Lafrenière, Gaspare Lo Curto, Lison Malo, Claudio Melo, Dany Mounzer, Vera Maria Passeger, Francesco Pepe, Anne-Sophie Poulin-Girard, Nuno C. Santos, Danuta Sosnowska, Alejandro Suárez Mascareño, Simon Thibault, Valentina Vaulato, Gregg A. Wade, François Wildi
Publikováno v:
The Astrophysical Journal Letters, Vol 960, Iss 1, p L3 (2024)
The two-planet transiting system LHS 1140 has been extensively observed since its discovery in 2017, notably with Spitzer, HST, TESS, and ESPRESSO, placing strong constraints on the parameters of the M4.5 host star and its small temperate exoplanets,
Externí odkaz:
https://doaj.org/article/248184ef49024f78bbde20d84a848845
Autor:
D. O. Fontinele, P. D. S. de Lima, Y. S. Messias, R. L. Gomes, C. E. Ferreira Lopes, B. L. Canto Martins, I. C. Leão, J. M. De Araújo, E. Janot Pacheco, J. R. De Medeiros
Publikováno v:
The Astrophysical Journal, Vol 973, Iss 2, p 106 (2024)
This study presents the results of a search for rotation signatures in 250 Gaia Data Release 3 ultra-cool dwarfs (UCDs) with TESS light curves (LCs). We identified 71 targets with unambiguous periodicities, of which 61 present rotation signatures and
Externí odkaz:
https://doaj.org/article/f4a00210a01b4ce0aa200f4cc3eb2b20
Autor:
R. L. Gomes, B. L. Canto Martins, D. O. Fontinele, L. A. Almeida, R. Alves Freire, A. C. Brito, R. G. S. B. de Amorim, C. E. Ferreira Lopes, D. Hazarika, E. Janot-Pacheco, I. C. Leão, Y. S. Messias, R. A. A. Souza, J. R. De Medeiros
Publikováno v:
The Astrophysical Journal, Vol 961, Iss 1, p 55 (2024)
We report the discovery of three Transiting Exoplanet Survey Satellite Objects of Interest (TOI) with signatures of pulsation, observed in more than one sector. Our main goal is to explore how large is the variety of classical pulsators such as δ Sc
Externí odkaz:
https://doaj.org/article/f07c53932b8941829d856bab10d020a6
Autor:
Neto, J. F. de Medeiros, Ramos, Rudnei O., Santos, Carlos Rafael M., Ozela, Rodrigo F., Magalhães, Gabriel C., Alves, Van Sérgio
Publikováno v:
Phys. Rev. D 92, 105021 (2015)
The Casimir force for a planar gauge model is studied considering perfect conducting and perfect magnetically permeable boundaries. By using an effective model describing planar vortex excitations, we determine the effect these can have on the Casimi
Externí odkaz:
http://arxiv.org/abs/1510.06461
Publikováno v:
Phys.Rev.D86:125034,2012
The Casimir force between parallel lines in a theory describing condensed vortices in a plane is determined. We make use of the relation between a Chern-Simons-Higgs model and its dualized version, which is expressed in terms of a dual gauge field an
Externí odkaz:
http://arxiv.org/abs/1209.6296
Autor:
Vitor A. Targino, Adriano S. Lopes, Valéria F. de O. Sousa, Juliane M. Henschel, João H. B. da Silva, Lucas S. Rodrigues, Wiliana J. F. de Medeiros, Diego S. Batista, Thiago J. Dias
Publikováno v:
Revista Brasileira de Engenharia Agrícola e Ambiental, Volume: 27, Issue: 5, Pages: 352-358, Published: 03 MAR 2023
Salinity is one of the major obstacles to agriculture in semi-arid regions, as it affects the physiological processes, growth, and yield of numerous crops. Hence, the application of salt stress attenuators is of paramount importance, as it enables th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::095f0e526296450afabe837f7012b757
https://doi.org/10.1590/1807-1929/agriambi.v27n5p352-358
https://doi.org/10.1590/1807-1929/agriambi.v27n5p352-358
Autor:
J. S. de Medeiros, G. T. Batista
Publikováno v:
Revista Brasileira de Cartografia, Vol 44 (2020)
Externí odkaz:
https://doaj.org/article/49c60cf69c434f62a36ed5b3098f0838
Publikováno v:
Revista Educação e Políticas em Debate, Vol 5, Iss 2, Pp 241-253 (2016)
O presente trabalho buscou compreender como as políticas públicas de inclusão digital do sistema educacional brasileiro têm sido idealizadas. Trata-se de um estudo bibliográfico, cujo percurso metodológico parte de uma avaliação dos aspectos
Externí odkaz:
https://doaj.org/article/b71097e55bdd44c5bf5f300b86007233
We use the ESPRESSO spectrograph at the Very Large Telescope to measure velocity shifts and gravitational redshifts of eight bona fide Hyades white dwarfs, with an accuracy better than 1.5 percent. By comparing the gravitational redshift measurements
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::54a0d2f8bf2ad4c10c21dbe921040a08
http://arxiv.org/abs/2304.10485
http://arxiv.org/abs/2304.10485
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 496:784-800
We present a multifractal analysis of the long-term light curves of a small sample of type 1 active galactic nuclei: NGC 4151, Arp 102B, 3C 390.3, E1821+643 and NGC 7469. We aim to investigate how the degrees of multifractality of the continuum and H
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b196d141b249d2b4662e6372e998e729
https://doi.org/10.1093/mnras/staa1487
https://doi.org/10.1093/mnras/staa1487