Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Ariadna Montiel"'
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 488:5127-5144
We present a non-parametric reconstruction of the rotation curves (RC) for 88 spiral galaxies under the LOESS+SIMEX technique. In order to compare methods we also perform the parametric approach assuming core and cuspy dark matter (DM) profiles: PISO
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::69314595dd35eb6287978061be745c7b
https://doi.org/10.1093/mnras/stz1969
https://doi.org/10.1093/mnras/stz1969
Publikováno v:
Journal of Cosmology and Astroparticle Physics. 2021:001
We study perturbations of a complex scalar field during reheating with no self-interaction in the regime $ \mu \gg H$, when the scalar field has a fast oscillatory behaviour (close to a pressure-less fluid). We focus on the precise determination of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4f06246536eaedd122e74c6fa72fc025
https://doi.org/10.1088/1475-7516/2021/07/001
https://doi.org/10.1088/1475-7516/2021/07/001
Dark energy models with tracker properties have gained attention due to the large range of initial conditions leading to the current value of the dark energy density parameter. A well-motivated family of these models are the so-called $\alpha$-attrac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::92de241b4ae5f38b85a97ccbb81e9b3a
http://arxiv.org/abs/1905.00834
http://arxiv.org/abs/1905.00834
Autor:
J. Alberto Vázquez, Ariadna Montiel, Gabriel German, Francisco X. Linares Cedeño, Juan Carlos Hidalgo
We study a model of inflation based on $\mathcal{N}=1$ supergravity essentially depending on one effective parameter. Under a field transformation we show that this model turns out to be equivalent to a previously studied supergravity model known to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c88e6a4eaabe114850cd8e0c2e49f3e8
The modified geodetic brane cosmology (MGBC) is tested with observational data. The MGBC is derived from the geodetic brane gravity action corrected by the extrinsic curvature of the braneworld. The density parameter coming from this additional term
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::329579fc6066f794fbbb35c932381feb
http://arxiv.org/abs/1506.00644
http://arxiv.org/abs/1506.00644
Autor:
Omar de Jesús Cabrera-Rosas, Israel Julián-Macías, Ernesto Espíndola-Ramos, Salvador Alejandro Juárez-Reyes, Nora Bretón, Román Suárez-Xique, Gilberto Silva-Ortigoza, Ariadna Montiel, Edwin Román-Hernández, Paula Ortega-Vidals, Citlalli Teresa Sosa-Sánchez, Ramón Silva-Ortigoza
Publikováno v:
Journal of Optics. 19:065602
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ee0341e77b24c22e679acec0a0e5e675
https://doi.org/10.1088/2040-8986/aa6cc7
https://doi.org/10.1088/2040-8986/aa6cc7
Publikováno v:
Addi. Archivo Digital para la Docencia y la Investigación
instname
Physics Letters B
instname
Physics Letters B
In this work we investigate if a small fraction of quarks and gluons, which escaped hadronization and survived as a uniformly spread perfect fluid, can play the role of both dark matter and dark energy. This fluid, as developed in \citep{Brilenkov},
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c6c45755a23b7435ad3bbc15449fae95
http://arxiv.org/abs/1404.0388
http://arxiv.org/abs/1404.0388
The cosmological model consisting of a nonlinear magnetic field obeying the Lagrangian L= \gamma F^{\alpha}, F being the electromagnetic invariant, coupled to a Robertson-Walker geometry is tested with observational data of Type Ia Supernovae, Long G
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7ef6299b1a0756c5897b25d88683073a
http://arxiv.org/abs/1403.6493
http://arxiv.org/abs/1403.6493
In this work we present a nonparametric approach, which works on minimal assumptions, to reconstruct the cosmic expansion of the Universe. We propose to combine a locally weighted scatterplot smoothing method and a simulation-extrapolation method. Th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::14c799db975aff307bd10a4666a7d6b3
Autor:
Nora Bretón, Ariadna Montiel
The luminosity distance describing the effect of local inhomogeneities in the propagation of light proposed by Zeldovich-Kantowski-Dyer-Roeder (ZKDR) is tested with two probes for two distinct ranges of redshifts: supernovae Ia (SNe Ia) in 0.015 < z
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::105fde36d8b704bd7c9f89f8a7788303
http://arxiv.org/abs/1303.1574
http://arxiv.org/abs/1303.1574