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Effects of superstructure environment on galaxy groups
(Oxford University Press, 2013-06-21)
We analyse properties of galaxy groups and their dependence on the large-scale environment as defined by superstructures. We find that group–galaxy cross–correlations depend only on group properties regardless the groups ...
Age and Metallicity Analysis of the Small Magellanic Cloud from Star Clusters
(2013)
We present metallicities for 15 Small Magellanic Cloud (SMC) star clusters. We add to this information the ages and metallicities of 15 additional star clusters previously studied by Parisi et al. (2009) and Parisi et al. ...
Anisotropic halo model
(2013-07-21)
In the present work, we extend the classic halo model for the large-scale matter distribution including a triaxial model for the halo profiles and their alignments. In particular, we derive general expressions for the ...
On the redshift of the gamma-ray blazar PKS 0447-439: Optical spectroscopy using Gemini observations with high S/N ratio
(Centro Brasileiro de Pesquisas Físicas (CBPF), 2013)
Environment and properties of obscured and unobscured active galactic nuclei
(Asociación Argentina de Astronomía, 2013)
We analyze the properties of obscured and unobscured active galactic nuclei selected using mid-infrared colors in the redshift range 1 < z < 3. We find that obscured objects are located in a denser local galaxy environment ...