Zobrazeno 1 - 7
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pro vyhledávání: '"Magi, Matteo"'
We study the effects of long wavelength entropy fluctuations on cosmological probes such as galaxy clustering, luminosity distance, and CMB temperature anisotropies. Specifically, we consider fluctuations of a massless spectator scalar field set up i
Externí odkaz:
http://arxiv.org/abs/2408.03684
Autor:
Magi, Matteo, Yoo, Jaiyul
Publikováno v:
Phys. Rev. D 109, 123535 (2024)
Cosmological probes constructed in large-scale surveys are independent of the underlying theory of gravity, and their relativistic descriptions are indeed applicable to any theory of gravity. It was shown that the presence of fluctuations with wavele
Externí odkaz:
http://arxiv.org/abs/2401.15143
Autor:
Magi, Matteo, Yoo, Jaiyul
Publikováno v:
Phys.Lett.B 846 (2023) 138204
Large-scale surveys allow us to construct cosmological probes such as galaxy clustering, weak gravitational lensing, the luminosity distance, and cosmic microwave background anisotropies. The gauge-invariant descriptions of these cosmological probes
Externí odkaz:
http://arxiv.org/abs/2306.09406
Publikováno v:
Phys.Lett.B 843 (2023) 137998
The relativistic effects in cosmological observables contain critical information about the initial conditions and gravity on large scales. Compared to the matter density fluctuation, some of these relativistic contributions scale with negative power
Externí odkaz:
http://arxiv.org/abs/2302.00427
Autor:
Magi, Matteo, Yoo, Jaiyul
Publikováno v:
JCAP09(2022)071
Accounting for all the relativistic effects, we have developed the fully nonlinear gauge-invariant formalism for describing the cosmological observables and presented the second-order perturbative expressions associated with light propagation and obs
Externí odkaz:
http://arxiv.org/abs/2204.01751
Akademický článek
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Publikováno v:
Mammalian Biology; Dec2020, Vol. 100 Issue 6, p591-599, 9p
