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Article 2018-01

Autor: Tissera, P.B. Machado, R.E.G. Carollo, D. Minniti, D. Beers, T.C. Zoccali, M. Meza, A.

We study the properties of the central spheroids located within 10 kpc of the centre of mass of MilkyWay mass-sized galaxies simulated in a cosmological context. The simulated central regions are dominated by stars older than 10 Gyr, mostly formed in situ, with a contribution of ~30 per cent from...

Enlace original: http://repositorio.unab.cl/xmlui/handle/ria/8570

Repositorio Universidad Andrés Bello
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Tissera, P.B. ,  Machado, R.E.G. ,  Carollo, D. ,  Minniti, D. ,  Beers, T.C. ,  Zoccali, M. ,  Meza, A. ,  [The central spheroids of Milky Way mass-sized galaxies] ,  The central spheroids of Milky Way mass-sized galaxies
Article 2018

Autor: Hayes, C.R. Majewski, S.R. Shetrone, M. Fernández-Alvar, E. Prieto, C.A. Schuster, W.J. Carigi, L. Cunha, K. Smith, V.V. Sobeck, J. Almeida, A. Beers, T.C. Carrera, R. Fernández-Trincado, J.G. García-Hernández, D.A. Geisler, D. Lane, R.R. Lucatello, S. Matthews, A.M. Minniti, D. Nitschelm, C. Tang, B. Tissera, P.B. Zamora, O.

We find two chemically distinct populations separated relatively cleanly in the [Fe/H]-[Mg/Fe] plane, but also distinguished in other chemical planes, among metal-poor stars (primarily with metallicities [Fe H] < -0.9) observed by the Apache Point Observatory Galactic Evolution Experiment (APOGEE...

Enlace original: http://repositorio.unab.cl/xmlui/handle/ria/6362

Repositorio Universidad Andrés Bello
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Hayes, C.R. ,  Majewski, S.R. ,  Shetrone, M. ,  Fernández-Alvar, E. ,  Prieto, C.A. ,  Schuster, W.J. ,  Carigi, L. ,  Cunha, K. ,  Smith, V.V. ,  Sobeck, J. ,  Almeida, A. ,  Beers, T.C. ,  Carrera, R. ,  Fernández-Trincado, J.G. ,  García-Hernández, D.A. ,  Geisler, D. ,  Lane, R.R. ,  Lucatello, S. ,  Matthews, A.M. ,  Minniti, D. ,  Nitschelm, C. ,  Tang, B. ,  Tissera, P.B. ,  Zamora, O. ,  [Disentangling the Galactic Halo with APOGEE. I. Chemical and Kinematical Investigation of Distinct Metal-poor Populations] ,  Disentangling the Galactic Halo with APOGEE. I. Chemical and Kinematical Investigation of Distinct Metal-poor Populations
Article 2018

Autor: Fernández-Alvar, E. Carigi, L. Schuster, W.J. Hayes, C.R. Ávila-Vergara, N. Majewski, S.R. Allende Prieto, C. Beers, T.C. Sánchez, S.F. Zamora, O. García-Hernández, D.A. Tang, B. Fernández-Trincado, J.G. Tissera, P. Geisler, D. Villanova, S.

The formation processes that led to the current Galactic stellar halo are still under debate. Previous studies have provided evidence for different stellar populations in terms of elemental abundances and kinematics, pointing to different chemical and star formation histories (SFHs). In the prese...

Enlace original: http://repositorio.unab.cl/xmlui/handle/ria/6361

Repositorio Universidad Andrés Bello
Enlace permanente

Fernández-Alvar, E. ,  Carigi, L. ,  Schuster, W.J. ,  Hayes, C.R. ,  Ávila-Vergara, N. ,  Majewski, S.R. ,  Allende Prieto, C. ,  Beers, T.C. ,  Sánchez, S.F. ,  Zamora, O. ,  García-Hernández, D.A. ,  Tang, B. ,  Fernández-Trincado, J.G. ,  Tissera, P. ,  Geisler, D. ,  Villanova, S. ,  [Disentangling the Galactic Halo with APOGEE. II. Chemical and Star Formation Histories for the Two Distinct Populations] ,  Disentangling the Galactic Halo with APOGEE. II. Chemical and Star Formation Histories for the Two Distinct Populations

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