Zobrazeno 1 - 10
of 60
pro vyhledávání: '"Roberto K. Saito"'
Autor:
Roberto K. Saito, Bringfried Stecklum, Dante Minniti, Philip W. Lucas, Zhen Guo, Leigh C. Smith, Luciano Fraga, Felipe Navarete, Juan Carlos Beamín, Calum Morris
Publikováno v:
The Astrophysical Journal Letters, Vol 958, Iss 1, p L1 (2023)
We report the serendipitous discovery of VVV-WIT-12, an unusual variable source that seems to induce variability in its surrounding nebula. The source belongs to the rare objects that we call WITs (short for What Is This?) discovered within the VISTA
Externí odkaz:
https://doaj.org/article/cbb3f3e81b7d47de9b02668b81f1e5f2
Autor:
Patricia Cruz, Miriam Cortés-Contreras, Enrique Solano, Carlos Rodrigo, Dante Minniti, Javier Alonso-García, Roberto K Saito
M-dwarf stars are the dominant stellar population in the MilkyWay and they are important for a wide variety of astrophysical topics. The Gaia mission has delivered a superb collection of data, nevertheless, ground-based photometric surveys are still
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a0d4e5067626ea045ffc7e50203ce60b
http://arxiv.org/abs/2301.13491
http://arxiv.org/abs/2301.13491
Autor:
William Schoenell, Thom de Souza, Leonardo A. Almeida, Eduardo S. Pereira, D. R. Gonçalves, F. R. Herpich, L. Azanha, J. A. Hernandez-Jimenez, Martin Makler, Lilianne Mariko Izuti Nakazono, G. Damke, C. Lima-Dias, L. Sampedro, R. S. de Souza, R. Lopes de Oliveira, C. Queiroz, Antonio D. Montero-Dorta, S. Torres-Flores, E. Telles, P. A. A. Lopes, Vinicius M. Placco, L. Sodré, M. L. Buzzo, Luis Raul Weber Abramo, C. Mendes de Oliveira, S. V. Werner, L. Santana-Silva, Antonio Kanaan, Paula Coelho, Ana L. Chies-Santos, C. E. Barbosa, M. V. Costa-Duarte, Alberto Molino, Roderik Overzier, J. L. Nilo Castellón, Narciso Benítez, Alvaro Alvarez-Candal, N. Muñoz-Elgueta, Lima Ev, Y. Jimenez-Teja, Stavros Akras, Roberto K. Saito, T. Ribeiro, Arianna Cortesi, Thiago S. Gonçalves
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Digital.CSIC. Repositorio Institucional del CSIC
instname
Universidade de São Paulo (USP)
instacron:USP
Digital.CSIC. Repositorio Institucional del CSIC
instname
Authors: Molino, A.; Costa-Duarte, M. V.; Sampedro, L.; Herpich, F. R.; Sodré, L., Jr.; Mendes de Oliveira, C.; Schoenell, W.; Barbosa, C. E.; Queiroz, C.; Lima, E. V. R.; Azanha, L.; Muñoz-Elgueta, N.; Ribeiro, T.; Kanaan, A.; Hernandez-Jimenez, J
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b53b6766d3d1efbf2cf25e43ee249457
https://doi.org/10.1093/mnras/staa1586
https://doi.org/10.1093/mnras/staa1586
Autor:
Roberto K. Saito, Beatriz Barbuy, T. Palma, Matías Gómez, José G. Fernández-Trincado, Javier Alonso-García, Juan J. Clariá, Dante Minniti, Bruno Dias
(ABRIDGED) Recent near-IR surveys have uncovered a plethora of new globular cluster (GC) candidates towards the Milky Way bulge. These new candidates need to be confirmed as real GCs and properly characterised. We investigate the physical nature of F
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f4417b3293fddc5d4f6743101760a443
http://arxiv.org/abs/2110.00868
http://arxiv.org/abs/2110.00868
Autor:
Zephyr Penoyre, Dante Minniti, Carlos González-Fernández, N. Wyn Evans, Paweł Pietrukowicz, Jason L. Sanders, Roberto K. Saito, Leigh C. Smith, Valentin D. Ivanov, Luciano Fraga, Sergey E. Koposov, David Aguado, Andrzej Udalski, Philip W. Lucas
Publikováno v:
Smith, L C, Koposov, S E, Lucas, P W, Sanders, J L, Minniti, D, Udalski, A, Evans, N W, Aguado, D, Ivanov, V D, Saito, R K, Fraga, L, Pietrukowicz, P, Penoyre, Z & Gonzalez-Fernandez, C 2021, ' VVV-WIT-08: the giant star that blinked ', Monthly Notices of the Royal Astronomical Society, vol. 505, no. 2, pp. 1992-2008 . https://doi.org/10.1093/mnras/stab1211
We report the serendipitous discovery of a late-type giant star that exhibited a smooth, eclipse-like drop in flux to a depth of 97 per cent. Minimum flux occurred in April 2012 and the total event duration was a few hundred days. Light curves in V,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6202c843a9d1a7056763d7d610e37a02
https://www.repository.cam.ac.uk/handle/1810/323858
https://www.repository.cam.ac.uk/handle/1810/323858
Autor:
L. J. de Melo de Azevedo, L. Katena, Antonio Kanaan, Paula Coelho, M. V. Costa-Duarte, F. Urrutia-Viscarra, A. Schnorr Müller, Irapuan Rodrigues, Erik V.R. de Lima, Angela Krabbe, David Alexander Kann, M. Vika, Carlos Gabriel Escudero, S. Alencar, Dennis Zaritsky, Nina S. T. Hirata, G. Damke, Fernando Roig, H. Farías, Leonardo A. Almeida, Anthony H. Gonzalez, D. Brito-Silva, Favio Raúl Faifer, F. Almeida-Fernandes, Luca Izzo, H. J. Rocha Pinto, O. L. Dors, W. A. Santos, M. Jaque Arancibia, Rafael M. Santucci, Pieter Westera, Yara L. Jaffé, Bruno Quint, Kanak Saha, R. S. Nemmen, Roberto K. Saito, L. A. Gutiérrez-Soto, Silvia Rossi, Leandro Alberto Sesto, Lilianne Mariko Izuti Nakazono, Ana L. Chies-Santos, L. Azanha, C. Labayru, Christina C. Thöne, William Schoenell, C. Lima-Dias, A. de Ugarte Postigo, S. S. Eikenberry, Carlos A. Fernandes, E. A. Hartmann, R. A. Ortega-Minakata, L. Sampedro, Ramachrisna Teixeira, P. Amram, Daniela Lazzaro, N. Muñoz-Elgueta, R. Lopes de Oliveira, C. H. Veiga, E. Pattaro, Teresa Santos-Silva, C. B. Pereira, S. V. Werner, R. Cid Fernandes, F. R. Herpich, Alexandre S. Oliveira, Simone Daflon, R. S. de Souza, J. S. Alcaniz, Analia Viviana Smith Castelli, Beatriz B. Siffert, D. F. De Paula, C. Bonatto, H. D. Perottoni, Marina Trevisan, Y. Jimenez-Teja, Eduardo S. Pereira, L. Sodré, Timothy C. Beers, M. Borges Fernandes, A. Werle, M. L. Buzzo, C. Mendes de Oliveira, M. Castejon, Vinicius M. Placco, Richard L. Donnerstein, Javier Alonso-García, Roderik Overzier, S. Bonoli, J. A. Hernandez-Jimenez, C. Queiroz, Beatriz Luci Fernandes, Rodolfo H. Barbá, R. Monteiro-Oliveira, Thiago S. Gonçalves, R. Silva, Alvaro Alvarez-Candal, Arianna Cortesi, G. Fabiano de Souza, Karín Menéndez-Delmestre, Eduardo S. Cypriano, T. Ribeiro, J. Caffer, Zach Cano, Martin Makler, S. Fontes, H. S. Xavier, C. L. Barbosa, V. Jatenco-Pereira, K. G. Diem, Amanda R. Lopes, M. L. L. Dantas, R. C. Thom de Souza, A. Galarza, Jane Gregorio-Hetem, J. L. Nilo Castellón, A. Z. Vitorelli, D. Ortíz, R. de Menezes, Denise R. Gonçalves, Reginaldo Bezerra dos Santos, Jordi Miralda-Escudé, J. D. Hernández-Fernández, R. A. Dupke, Alberto Molino, R. Magalhães, L. Riguccini, A. Campillay, Ribamar R. R. Reis, Leandro Kerber, Fabricio Ferrari, G. B. Lima Neto, Pedro H. Bernardinelli, Stavros Akras, V. Branco, Devin D. Whitten, Luis Raul Weber Abramo, P. M. Novais, Antonio D. Montero-Dorta, S. Torres-Flores, Eduardo Telles, J. M. Carvano, C. E. Barbosa, R. de la Reza, Paulo A. A. Lopes, Alessandro Ederoclite
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 489:3403-3411
In this study we define a new sample of distant powerful radio galaxies in order to study their host-galaxy properties and provide targets for future observations of HI absorption with new radio telescopes and to understand the fuelling and feedback
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b0680faa842ecd7e1661b26d0f27e1b6
https://doi.org/10.1093/mnras/stz2371
https://doi.org/10.1093/mnras/stz2371
Autor:
L. V. Gramajo, Dante Minniti, R. Contreras Ramos, E. Botan, María G. Navarro, T. S. Ferreira, Antonio Kanaan, Roberto K. Saito
Publikováno v:
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
Most of our knowledge about the structure of the Milky Way has come from the study of variable stars. Among the variables, mimicking the periodic variation of pulsating stars, are the eclipsing binaries. These stars are important in astrophysics beca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::63480a23759356f202c7f29d50e4932e
Context. The Sagittarius (Sgr) dwarf galaxy is merging with the Milky Way, and the study of its globular clusters (GCs) is important to understand the history and outcome of this ongoing process. Aims. Our main goal is to characterize the GC system o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::59917347b4df253a91efbc05f25bbee0
Autor:
Leigh C. Smith, S. Points, Jura Borissova, Dante Minniti, N. Medina, C. Contreras Peña, Eduard I. Vorobyov, Valentin D. Ivanov, R. Kurtev, Philip W. Lucas, Roberto K. Saito, Zhen Guo, B. Stecklum, C. Morris, J. Elias
Publikováno v:
Mon. Not. R. Astron. Soc.
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society
We report the discovery of a mid-infrared outburst in a Young Stellar Object (YSO) with an amplitude close to 8 mag at $\lambda$$\approx$4.6 $\mu$m. WISEA J142238.82-611553.7 is one of 23 highly variable WISE sources discovered in a search of Infrare
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::14954059a79889360a40ba4302d11d68
http://repositorio.unab.cl/xmlui/handle/ria/20071
http://repositorio.unab.cl/xmlui/handle/ria/20071
Autor:
T. Palma, C. Moni Bidin, Vincenzo Ripepi, Dante Minniti, P. W. Lucas, J. Fernández Trincado, Javier Alonso-García, F. Surot, Valentin D. Ivanov, S. Ramirez Alegria, Rodolfo H. Barbá, Roberto K. Saito, Daniel J. Majaess, Joyce Pullen, F. Mauro, Bruno Dias, Leigh C. Smith, M. Rejkuba, Beatriz Barbuy, A. N. Chené, Maren Hempel, Juan J. Clariá, Matías Gómez, E. R. Garro
Publikováno v:
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
Context. Milky Way globular clusters (GCs) are difficult to identify at low Galactic latitudes because of high differential extinction and heavy star crowding. The new deep near-infrared (IR) images and photometry from the VISTA Variables in the Via
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::80204f745a507f837945b0bd2d5bb7ee
http://arxiv.org/abs/2010.02113
http://arxiv.org/abs/2010.02113