Počet záznamů: 1
Dark energy and the anthropic principle
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SYSNO ASEP 0360620 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Dark energy and the anthropic principle Tvůrce(i) Křížek, Michal (MU-W) RID, SAI, ORCID Zdroj.dok. New Astronomy. - : Elsevier - ISSN 1384-1076
Roč. 17, č. 1 (2012), s. 1-7Poč.str. 7 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova Hubble constant ; dark energy ; Mars ; gravitational aberration Vědní obor RIV BA - Obecná matematika CEP IAA100190803 GA AV ČR - Akademie věd CEZ AV0Z10190503 - MU-W (2005-2011) UT WOS 000296217300001 EID SCOPUS 79959767851 DOI 10.1016/j.newast.2011.05.003 Anotace The Hubble constant is split into two terms H = H1 + H2 , where H1 is a decreasing function due to the Big Bang and the subsequent gravitational interaction that slows the expansion of the Universe and H2 is an increasing function that corresponds to dark energy which accelerates this expansion. For T = 13.7 Gyr we prove that H2(T) > 5 m/(yr AU). This is a quite large number and thus the impact of dark energy, which is spread almost everywhere uniformly, should be observable not only on large scales, but also in our Solar system. In particular, we show that Earth, Mars and other planets were closer to the Sun 4.5 Gyr ago. The recession speed ≈5.3 m/yr of the Earth from the Sun seems to be just right for an almost constant influx of solar energy from the origin of life on Earth up to the present over which time the Sun’s luminosity has increased approximately linearly. This presents further support for the Anthropic Principle. Pracoviště Matematický ústav Kontakt Jarmila Štruncová, struncova@math.cas.cz, library@math.cas.cz, Tel.: 222 090 757 Rok sběru 2012
Počet záznamů: 1