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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 ...
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 Lifetimes of Dusty Debris Disks around A-type Stars
(IAU Editorial, 2014-01)
The brightest group galaxies and their large-scale environment
(Asociación Argentina de Astronomía, 2015)
We use a sample of galaxy groups in SDSS data to study their brightestgalaxies (BGG), separating groups according to their large scale environment. The statistical properties of the BGG depend on the surrounding environment ...
Abundance analysis of planet-hosting and debris-disk stars
(Publishing house "Pero", 2014)
Interactions of Galaxies: Systems with Tidal Bridges
(2015)
In this work we present a sample of elliptical interacting galaxy pairs connected by a bridge, obtained from a visual classification of a pair catalogue dereived from the data of the 7th Sloan Digital Sky Survey (SDSS-DR7). ...
A project to constrain emission from giant gaseous shells around high redshift radio galaxies
(Asociación Argentina de Astronomía, 2015)
Around half of the radio galaxies (radio-loud, type 2 quasars) at 2 are known to show strong Ly absorption features in their spectra, with a spatial extent at least as large as the background Ly nebulae closely associated ...
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 ...