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pro vyhledávání: '"Novaes C"'
We investigate the growth rate of structures in the local Universe. For this, we use as a cosmological tracer the HI line extra-galactic sources from the Arecibo Legacy Fast ALFA (ALFALFA) survey to obtain a measurement of the normalized growth rate
Externí odkaz:
http://arxiv.org/abs/2105.10583
Publikováno v:
A&A 649, A20 (2021)
We measure the transverse baryon acoustic oscillations (BAO) signal in the local Universe using a sample of blue galaxies from the Sloan Digital Sky Survey (SDSS) survey as a cosmological tracer. The method is weakly dependent on a cosmological model
Externí odkaz:
http://arxiv.org/abs/2103.14121
Publikováno v:
MNRAS 492, 2020, 4469-4476
The clustering properties of the Universe at large-scales are currently being probed at various redshifts through several cosmological tracers and with diverse statistical estimators. Here we use the three-point angular correlation function (3PACF) t
Externí odkaz:
http://arxiv.org/abs/2002.01109
We probe the angular scale of homogeneity in the local Universe using blue galaxies from the SDSS survey as a cosmological tracer. Through the scaled counts in spherical caps, $ \mathcal{N}(<\theta) $, and the fractal correlation dimension, $\mathcal
Externí odkaz:
http://arxiv.org/abs/1906.10744
Publikováno v:
JCAP12 (2018) 041
We use the scaled counts in spherical caps $\mathcal{N}(<\theta)$ and the fractal correlation dimension $ \mathcal{D}_{2}(\theta) $ procedures to search for a transition scale to homogeneity in the local universe as given by the ALFALFA catalogue (a
Externí odkaz:
http://arxiv.org/abs/1806.04541
The presence of matter in the path of relic photons causes distortions in the angular pattern of the cosmic microwave background (CMB) temperature fluctuations, modifying their properties in a slight but measurable way. Recently, the Planck Collabora
Externí odkaz:
http://arxiv.org/abs/1708.09793
Following a quasi model-independent approach we measure the transversal BAO mode at high redshift using the two-point angular correlation function (2PACF). The analyses done here are only possible now with the quasar catalogue from the twelfth data r
Externí odkaz:
http://arxiv.org/abs/1709.00113
Publikováno v:
MNRASL, 475, Issue 1, 2018, L106-L110
We probe the isotropy of the Universe with the largest all-sky photometric redshift dataset currently available, namely WISE~$\times$~SuperCOSMOS. We search for dipole anisotropy of galaxy number counts in multiple redshift shells within the $0.10 <
Externí odkaz:
http://arxiv.org/abs/1707.08091
Publikováno v:
Journal of Physics: Conference Series; Nov2023, Vol. 2678 Issue 1, p1-6, 6p
Publikováno v:
MNRAS (2016) 464 (1): 768-774
We probe the anisotropy of the large-scale structure (LSS) with the WISE-2MASS catalogue. This analysis is performed by a directional comparison of the galaxy number counts through the entire celestial sphere once systematic effects, such as star-gal
Externí odkaz:
http://arxiv.org/abs/1606.06751