Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Kaeonikhom, Chakkrit"'
Publikováno v:
JCAP01(2023)042
We explore the bounds that can be placed on interactions between cold dark matter and vacuum energy, with equation of state $w=-1$, using state-of-the-art cosmological observations. We consider linear perturbations about a simple background model whe
Externí odkaz:
http://arxiv.org/abs/2210.05363
Autor:
Kaeonikhom, Chakkrit, Rangdee, Phongsaphat, Assadullahi, Hooshyar, Gumjudpai, Burin, Schewtschenko, Jascha A., Wands, David
Publikováno v:
Phys. Rev. D 102, 123519 (2020)
We present a phase-space analysis of the qualitative dynamics cosmologies where dark matter exchanges energy with the vacuum component. We find fixed points corresponding to power-law solutions where the different components remain a constant fractio
Externí odkaz:
http://arxiv.org/abs/2007.12181
Publikováno v:
Physical Review D, 98, 083534 (2018)
We apply the Lagrangian perturbation theory with time-dependent growth functions at second and third order of perturbation with the aim to model the effect of dynamical dark energy on redshift-space distortions. Our fiducial galaxy redshift surveys a
Externí odkaz:
http://arxiv.org/abs/1810.11838
Publikováno v:
Phys.Rev. D86 (2012) 124049
We study the dynamics of Dirac-Born-Infeld (DBI) dark energy interacting with dark matter. The DBI dark energy model considered here has a scalar field with a nonstandard kinetic energy term, and has potential and brane tension that are power-law fun
Externí odkaz:
http://arxiv.org/abs/1209.5219
Autor:
Gumjudpai, Burin, Kaeonikhom, Chakkrit
In this paper, power-law cosmology whose scale factor is a power of time, $a \propto t^{\a}$, is investigated. Considering late universe with canonical scalar field and dust domination, we use observational data from Cosmic Microwave Background (WMAP
Externí odkaz:
http://arxiv.org/abs/1201.3499
Publikováno v:
Phys. Lett. B695:45-54,2011
We investigate phantom cosmology in which the scale factor is a power law, and we use cosmological observations from Cosmic Microwave Background (CMB), Baryon Acoustic Oscillations (BAO) and observational Hubble data, in order to impose complete cons
Externí odkaz:
http://arxiv.org/abs/1008.2182
Akademický článek
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Publikováno v:
In Physics Letters B 10 January 2011 695(1-4):45-54
