Výsledky vyhledávání - "Espectros infravermelhos"

An embedded active nucleus in the OH megamaser galaxy IRAS16399-0937

Autor: Mittal, R., Elitzur, M., Baum, S., ODea, C., Curran, R., Kharb, P., Gallimore, J., Axon, D., Robinson, A., Sales, Dinalva

Publikováno v: Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS

We present a multiwavelength study of the OH Megamaser galaxy (OHMG) IRAS16399-0937, based on new HST/ACS F814W and H$\alpha$+[NII] images and archive data from HST, 2MASS, Spitzer, Herschel and the VLA. This system has a double nucleus, whose northe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a9f2c1d4f0bcade4382c1bc70a201540

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Influence of impurities on the luminescence of Er3+ doped BaTiO3 nanophosphors

Autor: Webler, Geovana Dresch, Zapata, Maximiliano Jesús Moreno, Maciel, Glauco Santos, Patra, Amitava, Hickmann, Jandir Miguel, Alencar, Marcio André Rodrigues Cavalcanti de

Publikováno v: Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS

The influence of the presence of barium carbonate (BaCO3) phase on the luminescence properties of barium titanate nanocrystals (BaTiO3) powders was investigated. Structural and optical characterizations of erbium (Er3+) doped BaTiO3 synthesized by th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______3056::5b5dc7e9d357a8aa9629a19c62209659

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Massive open star clusters using the VVV survey I. Presentation of the data and description of the approach

Autor: M. S. N. Kumar, Márcio Catelan, Dante Minniti, Philip W. Lucas, Francesco Mauro, Valentin D. Ivanov, J. R. A. Clarke, Stuart E. Sale, Doug Geisler, André-Nicolas Chené, Charles Jose Bonatto, Carlos Feinstein, R. de Grijs, C. Moni Bidin, Radostin Kurtev, Daniel J. Majaess, J. Borissova, Gustavo Baume

Publikováno v: ASTRONOMY & ASTROPHYSICS
Artículos CONICYT
CONICYT Chile
instacron:CONICYT
Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET

Context. The ESO Public Survey "VISTA Variables in the Vía Láctea" (VVV) provides deep multi-epoch infrared observations for unprecedented 562 sq. degrees of the Galactic bulge, and adjacent regions of the disk. Aims. The VVV observations will fost

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a67ec852e3c5d95895609aee7f60e8aa

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Optical and IR emission of a sample of IRAS galaxies

Autor: Sebastian Lipari, Miriani Griselda Pastoriza, Charles Jose Bonatto

Publikováno v: Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS

We report on observations of 12 southem warm IRAS galaxies. Using absolute fluxes of lines in the optical region in connection with diagnostic diagrams, we have classified these galaxies in terms of the principal excitation mechanisms and have found

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fbfdccd5a30f3c51f9b28df034a32499
https://doi.org/10.1093/mnras/253.1.19

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Infrared Fe II emission in narrow-line Seyfert 1 galaxies

Autor: Rodriguez-Ardila, Alberto, Viegas, Sueli Maria Marino, Pastoriza, Miriani Griselda, Prato, Lisa A.

Publikováno v: Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS

We obtained 0.8-2.4 μm spectra at a resolution of 320 km s-ˡ of four narrow-line Seyfert 1 galaxies in order to study the near-infrared properties of these objects. We focus on the analysis of the Fe II emission in that region and the kinematics of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______3056::98fc1b69fc3a9817fd9e2356bc3450f5

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Dust obscuration in starburst galaxies from near-infrared spectroscopy

Autor: Anne L. Kinney, Daniela Calzetti, Thaisa Storchi-Bergmann

Publikováno v: Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS

We present new observations of the near-infrared hydrogen recombination lines Paβ and Bry in the central starburst regions of 13 galaxies. The near-infrared data are supplemented with data on the optical Balmer line emission and are used to study th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f6b9cf7bf0c067ff4327835d171fc166

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