Pregled bibliografske jedinice broj: 1007313
Transient dark energy, cosmological constant boundary crossing and dark energy w(z) data fits
Transient dark energy, cosmological constant boundary crossing and dark energy w(z) data fits // International Journal of Modern Physics D, 28 (2019), 03; 1950045, 19 doi:10.1142/S0218271819500457 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 1007313 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Transient dark energy, cosmological constant boundary crossing and dark energy w(z) data fits
Autori
Perković, Dalibor ; Štefančić, Hrvoje
Izvornik
International Journal of Modern Physics D (0218-2718) 28
(2019), 03;
1950045, 19
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
Dark energy ; cosmological constant boundary crossing ; transient dark energy ; equation-of-state
Sažetak
The formalism of dark energy based on modeling speed of sound as a function of equation-of-state parameter is elaborated. A specific model which allows detailed study of cosmological constant boundary crossing is introduced and analytical solutions for the model dynamics are obtained. It is shown how in specific parameter regimes dark energy can be a transient phenomenon. It is further demonstrated how the model reproduces specific features of recent fits of dark energy w(z) to observational data.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
POVEZANOST RADA
Ustanove:
Zdravstveno veleučilište, Zagreb,
Hrvatsko katoličko sveučilište, Zagreb
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
