Zobrazeno 1 - 10
of 600
pro vyhledávání: '"Diego García P."'
We present a statistical analysis of different astrophysical properties of a sample of galaxy pairs in cosmic voids. The sample consists of 72 galaxy pairs with projected separations and relative radial velocities rp<100 h$^{-1}$kpc, $\Delta V <$ 500
Externí odkaz:
http://arxiv.org/abs/2412.01697
Autor:
Hansen, Frode K., Lambas, Diego Garcia, Luparello, Heliana E., Toscano, Facundo, Pereyra, Luis A.
We confirm at the $5.7\sigma$ level previous studies reporting Cosmic Microwave Background (CMB) temperatures being significantly lower around nearby spiral galaxies than expected in the $\Lambda$CDM model. The significance reported in our earlier wo
Externí odkaz:
http://arxiv.org/abs/2411.15307
In this work we analyze the shift current conductivity in helical twisted trilayer graphene. Without loss of generality, we show that the density of states and the twist angle set an upper bound for this response, which is inversely proportional to t
Externí odkaz:
http://arxiv.org/abs/2411.07844
Autor:
Toscano, Facundo, Hansen, Frode K., Lambas, Diego Garcia, Luparello, Heliana, Fosalba, Pablo, Gaztañaga, Enrique
We perform cosmological parameters estimation on Planck Cosmic Microwave Background (CMB) maps masking the recently discovered foreground related to nearby spiral galaxies. In addition, we also analyse the association between these foreground regions
Externí odkaz:
http://arxiv.org/abs/2410.24026
In this article, we investigate the existence of nematic-superconducting states in the Ginzburg-Landau regime, both analytically and numerically. From the configurations considered, a slab and a cylinder with a circular cross-section, we demonstrate
Externí odkaz:
http://arxiv.org/abs/2401.13106
We compare the reduced void probability function (VPF) inside and outside of cosmic voids in the TNG300-1 simulation, both in real and simulated redshift space. The VPF is a special case of the counts-in-cells approach for extracting information of h
Externí odkaz:
http://arxiv.org/abs/2311.12928
We investigate the optical response induced by a d.c. current flowing in a nonmagnetic material that lacks inversion symmetry. In this class of materials, the flowing current experiences a nonlinear Hall effect and induces a nonequilibrium orbital ma
Externí odkaz:
http://arxiv.org/abs/2311.11889
Autor:
Lambas, Diego Garcia, Hansen, Frode K., Toscano, Facundo, Luparello, Heliana E., Boero, Ezequiel F.
Publikováno v:
A&A 681, A2 (2024)
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 the presence of a cosmic void at high redshift can account for the obs
Externí odkaz:
http://arxiv.org/abs/2310.13755
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 (CMB) data. For this purpose, we stack patches of the Planck Collaboratio
Externí odkaz:
http://arxiv.org/abs/2310.04387
Autor:
Gonzalez, Elizabeth Johana, Rodriguez-Medrano, Agustín, Pereyra, Luis Alberto, Lambas, Diego García
Self-interacting dark matter (SIDM) is an alternative to the standard collisionless cold dark matter model (CDM), allowing for interactions between the dark matter particles through the introduction of a self-scattering cross-section. However, the ob
Externí odkaz:
http://arxiv.org/abs/2308.13461