50 citations · 265 across the 19 of their papers we have counts for
19 papers
The connection between surface brightness and satellite systems for central galaxies through Illustris TNG
Silvio Rodriguez, Yamila Yaryura, Jose A. Benavides +7
We analyse different properties of central low-surface-brightness galaxies (LSBGs) and their satellite systems using the simulation Illustris TNG-100, in order to deepen our unders…
Revisiting the CMB homogeneity scale: low multipoles removal effect and extragalactic foreground masking
Xiaoyun Shao, Facundo Toscano, Diego Garcia Lambas +5
The Cosmic Microwave Background (CMB) reaches homogeneity at relatively modest angular scales compared to the expectation of the standard CDM model revealing an important challe…
Quasar Pairs as Large--Scale Structure tracers
Martín G. Richarte, Facundo Toscano, Diego G. Lambas +3
Quasars are effective tracers of the large-scale distribution of galaxies at high redshift thanks to their high luminosity and dedicated surveys. Previous studies have shown that q…
A p<0.0001 detection of CMB cooling in galactic halos and its possible relation to dark matter
Frode K. Hansen, Diego Garcia Lambas, Heliana E. Luparello +2
We confirm at the level previous studies reporting Cosmic Microwave Background (CMB) temperatures being significantly lower around nearby spiral galaxies than expected in th…
Are CMB derived cosmological parameters affected by foregrounds associated to nearby galaxies?
Facundo Toscano, Frode K. Hansen, Diego Garcia Lambas +3
We perform cosmological parameters estimation on Planck Cosmic Microwave Background (CMB) maps masking the recently discovered foreground related to nearby spiral galaxies. In addi…
The CMB Cold Spot as predicted by foregrounds around nearby galaxies
Diego Garcia Lambas, Frode K. Hansen, Facundo Toscano +2
The non-Gaussian Cold Spot (CS) surrounded by its hot ring is one of the most striking features of the CMB. It has been speculated that either new physics or ISW effect induced by…
A CMB lensing analysis of the extended mass distribution of clusters
Facundo Toscano, Heliana Luparello, Elizabeth Johana Gonzalez +1
The aim of this work is to study the anisotropic weak lensing signal associated with the mass distribution of massive clusters of galaxies using the Cosmic Microwave Background (CM…
A possible common explanation for several cosmic microwave background (CMB) anomalies: A strong impact of nearby galaxies on observed large-scale CMB fluctuations
Frode K. Hansen, Ezequiel F. Boero, Heliana E. Luparello +1
In Luparello et al. 2023, a new and hitherto unknown CMB foreground was detected. A systematic decrease in Cosmic Microwave Background (CMB) temperatures around nearby large spiral…
The cosmic shallows I: interaction of CMB photons in extended galaxy halos
Heliana E. Luparello, Ezequiel F. Boero, Marcelo Lares +2
We report and analyse the presence of foregrounds in the cosmic microwave background (CMB) radiation associated to extended galactic halos. Using the cross correlation of Planck an…
How do galaxies populate halos in extreme density environments? An analysis of the Halo Occupation Distribution in SDSS
Ignacio G. Alfaro, Facundo Rodriguez, Andrés N. Ruiz +2
Recent works have shown that the properties of galaxy populations in dark matter halos vary with large-scale environments. These results suggest a variation in the halo occupation…
Galaxy populations in haloes in high-density environments
Ignacio G. Alfaro, Andres N. Ruiz, Heliana E. Luparello +2
There are hints suggesting that properties of galaxy populations in dark matter haloes may depend on their large-scale environment. Recent works point out that very low-density env…
Spatial correlations of extended cosmological structures
M. V. Santucho, H. E. Luparello, M. Lares +3
Studies of large-scale structures in the Universe, such as superstructures or cosmic voids, have been widely used to characterize the properties of the cosmic web through statistic…
The sparkling Universe: Clustering of voids and void clumps
Marcelo Lares, Andrés N. Ruiz, Heliana E. Luparello +3
We analyse the clustering of cosmic voids using a numerical simulation and the main galaxy sample from the Sloan Digital Sky Survey. We take into account the classification of void…
The sparkling Universe: a scenario for cosmic void motions
Laura Ceccarelli, Andrés N. Ruiz, Marcelo Lares +4
We perform a statistical study of the global motion of cosmic voids using both a numerical simulation and observational data. We analyse their relation to large-scale mass flows an…
The sparkling Universe: the coherent motions of cosmic voids
Diego G. Lambas, Marcelo Lares, Laura Ceccarelli +4
We compute the bulk motions of cosmic voids, using a CDM numerical simulation considering the mean velocities of the dark matter inside the void itself and that of the haloes in…
Brightest group galaxies and the large-scale environment
H. E. Luparello, M. Lares, D. Paz +3
We study the dependence of the properties of group galaxies on the surrounding large-scale environment, using SDSS-DR7 data. Galaxies are ranked according to their luminosity withi…
Effects of superstructure environment on galaxy groups
H. E. Luparello, M. Lares, C. Y. Yaryura +3
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 o…
The influence of superstructures on bright galaxy environments: clustering properties
C. Yamila Yaryura, Marcelo Lares, Heliana E. Luparello +4
We analyse the dependence of clustering properties of galaxies as a function of their large-scale environment. In order to characterize the environment on large scales, we use the…
Future virialized structures: An analysis of superstructures in SDSS-DR7
Heliana E. Luparello, Marcelo Lares, Diego G. Lambas +1
We construct catalogues of present superstructures that, according to a LCDM scenario, will evolve into isolated, virialized structures in the future. We use a smoothed luminosity…