Descubre y comparte nuestro conocimiento público

Se han encontrado 3 recursos

Resultados de búsqueda

Article 2016-06

Autor: Barbuy, B. Cantelli, E. Vemado, A. Ernandes, H. Ortolani, S. Saviane, I. Bica, E. Minniti, D. Dias, B. Momany, Y. Hill, V. Zoccali, M. Siqueira-Mello, C.

Context. The globular cluster HP 1 is projected at only 3.̊33 from the Galactic center. Together with its distance, this makes it one of the most central globular clusters in the Milky Way. It has a blue horizontal branch (BHB) and a metallicity of [Fe/H] ≈ −1.0. This means that it probably is on...

Enlace original: http://repositorio.unab.cl/xmlui/handle/ria/2787

Repositorio Universidad Andrés Bello
Enlace permanente

Barbuy, B. ,  Cantelli, E. ,  Vemado, A. ,  Ernandes, H. ,  Ortolani, S. ,  Saviane, I. ,  Bica, E. ,  Minniti, D. ,  Dias, B. ,  Momany, Y. ,  Hill, V. ,  Zoccali, M. ,  Siqueira-Mello, C. ,  [High-resolution abundance analysis of red giants in the metal-poor bulge globular cluster HP 1] ,  High-resolution abundance analysis of red giants in the metal-poor bulge globular cluster HP 1
Article 2018-11

Autor: Barbuy, B. Muniz, L. Ortolani, S. Ernandes, H. Dias, B. Saviane, I. Kerber, L. Bica, E. Pérez-Villegas, A. Rossi, L. Held, E.V.

Context. NGC 6558 is a bulge globular cluster with a blue horizontal branch (BHB), combined with a metallicity of [Fe/H] â‰-1.0. It is similar to HP 1 and NGC 6522, which could be among the oldest objects in the Galaxy. Element abundances in these clusters could reveal the nature of the first sup...

Enlace original: http://repositorio.unab.cl/xmlui/handle/ria/11578

Repositorio Universidad Andrés Bello
Enlace permanente

Barbuy, B. ,  Muniz, L. ,  Ortolani, S. ,  Ernandes, H. ,  Dias, B. ,  Saviane, I. ,  Kerber, L. ,  Bica, E. ,  Pérez-Villegas, A. ,  Rossi, L. ,  Held, E.V. ,  [High-resolution abundance analysis of four red giants in the globular cluster NGC 6558] ,  High-resolution abundance analysis of four red giants in the globular cluster NGC 6558
Article 2018

Autor: Da Silveira, C.R. Barbuy, B. Friaça, A.C.S. Hill, V. Zoccali, M. Rafelski, M. Gonzalez, O.A. Minniti, D. Renzini, A. Ortolani, S.

Context. Oxygen and zinc in the Galactic bulge are key elements for the understanding of the bulge chemical evolution. Oxygen-to-iron abundance ratios provide a most robust indicator of the star formation rate and chemical evolution of the bulge. Zinc is enhanced in metal-poor stars, behaving as ...

Enlace original: http://repositorio.unab.cl/xmlui/handle/ria/10564

Repositorio Universidad Andrés Bello
Enlace permanente

Da Silveira, C.R. ,  Barbuy, B. ,  Friaça, A.C.S. ,  Hill, V. ,  Zoccali, M. ,  Rafelski, M. ,  Gonzalez, O.A. ,  Minniti, D. ,  Renzini, A. ,  Ortolani, S. ,  [Oxygen and zinc abundances in 417 Galactic bulge red giants] ,  Oxygen and zinc abundances in 417 Galactic bulge red giants

Selecciona los documentos para visualizarlos

Nombre del archivo Ver recurso
Marcar todos
Limpiar todo