M
M. Borges Fernandes
Researcher at Federal University of Rio de Janeiro
Publications - 37
Citations - 678
M. Borges Fernandes is an academic researcher from Federal University of Rio de Janeiro. The author has contributed to research in topics: Supergiant & Stars. The author has an hindex of 16, co-authored 37 publications receiving 587 citations. Previous affiliations of M. Borges Fernandes include Centre national de la recherche scientifique & University of Nice Sophia Antipolis.
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Journal ArticleDOI
Probing the ejecta of evolved massive stars in transition - A VLT/SINFONI K-band survey
Mary E. Oksala,Michaela Kraus,Lydia Sonia Cidale,Lydia Sonia Cidale,M. F. Muratore,M. F. Muratore,M. Borges Fernandes +6 more
TL;DR: In this article, the authors presented a survey of 25 evolved massive stars (16 B[e]SGs, 6 LBVs, 2 YHGs, and 1 Peculiar Oe star), observed in the K-band with the Spectrograph for INtegral Field Observation in the Near-Infrared (SINFONI) on the ESO VLT UT4 8 m telescope.
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A new observational tracer for high-density disc-like structures around B[e] supergiants
TL;DR: In this article, the authors studied the radial density and temperature structure of B[e] supergiants in the Magellanic clouds and discovered the [Ca,ii] λλ7291, 7324 lines which can be used as a complementary set of disc tracers.
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On the hydrogen neutral outflowing disks of B[e] supergiants
TL;DR: In this paper, the authors proposed a revised scenario for the non-spherical winds of B[e] supergiants: a normal B-type line-driven polar wind and an outflowing disk-forming wind that is neutral in hydrogen at, or very close to the stellar surface.
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The galactic unclassified B(e) star HD 50138 ??? II. Interferometric constraints on the close circumstellar environment
M. Borges Fernandes,Anthony Meilland,Philippe Bendjoya,A. Domiciano de Souza,G. Niccolini,O. Chesneau,Florentin Millour,A. Spang,Ph. Stee,Michaela Kraus +9 more
TL;DR: In this article, the structure of the circumstellar environment of HD 50138 has been analyzed using the LITpro software and considering a large space of parameters, which allows us to obtain a good estimate of the geometry of a circumstellar medium responsible for the emission in the H, K,a ndN-bands.
Journal ArticleDOI
J-PLUS: Identification of low-metallicity stars with artificial neural networks using SPHINX
Devin D. Whitten,Vinicius M. Placco,Timothy C. Beers,Ana L. Chies-Santos,Charles Jose Bonatto,Jesús A. Varela,David Cristóbal-Hornillos,Alessandro Ederoclite,Thomas Masseron,Thomas Masseron,Young Sun Lee,Stavros Akras,M. Borges Fernandes,José Antonio Ruiz Caballero,A. J. Cenarro,Paula Coelho,M. V. Costa-Duarte,S. Daflon,R. A. Dupke,R. A. Dupke,R. Lopes de Oliveira,C. López-Sanjuan,Antonio Marín-Franch,C. Mendes de Oliveira,Mariano Moles,Alvaro Orsi,Silvia Rossi,Laerte Sodré,H. Vázquez Ramió +28 more
TL;DR: In this article, a neural network-based photometry pipeline was developed to estimate the effective temperature, T eff, and metallicity, [Fe/H], for a large subset of stars in the J-PLUS footprint.