Hrvatska znanstvena bibliografija (CROSBI)



Pregled bibliografske jedinice broj: 157947

Časopis

Autori: Štefančić, Hrvoje
Naslov: Partial rip scenario - a cosmology with a growing cosmological term
( Partial rip scenario - a cosmology with a growing cosmological term )
Izvornik: Physics letters. B (0370-2693) 595 (2004); 9
Vrsta rada: članak
Ključne riječi: cosmology; partial rip; cosmological term
( cosmology; partial rip; cosmological term )
Sažetak:
A cosmology with the growing cosmological term is considered. If there is no exchange of energy between vacuum and matter components, the requirement of general covariance implies the time dependence of the gravitational constant $G$. Irrespectively of the exact functional form of the cosmological term growth, the universe ends in a de Sitter regime with a constant asymptotic $\Lambda$, but vanishing $G$. Although there is no divergence of the scale factor in finite time, such as in the "Big Rip" scenario, gravitationally bound systems eventually become unbound. In the case of systems bound by non-gravitational forces, there is no unbounding effect, as the asymptotic $\Lambda$ is insufficiently large to disturb these systems.
Projekt / tema: 0098002
Izvorni jezik: eng
Rad je indeksiran u
bazama podataka:
Current Contents Connect (CCC)
Scopus
SCI-EXP, SSCI i/ili A&HCI
Science Citation Index Expanded (SCI-EXP) (sastavni dio Web of Science Core Collectiona)
Kategorija: Znanstveni
Znanstvena područja:
Fizika
URL Internet adrese: http://xxx.lanl.gov/abs/astro-ph/0311247
URL cjelovitog teksta:
Google Scholar: Partial rip scenario - a cosmology with a growing cosmological term