منابع مشابه
The South Pole Telescope: A white paper for the Dark Energy Task Force
1 Overview The primary goal of the South Pole Telescope (SPT) project is to set constraints on the nature of dark energy by measuring its impact on the growth of structure, specifically the evolution of the number density of massive galaxy clusters. The SPT will conduct a deep, large solid angle (4000 deg) galaxy cluster survey by exploiting the redshift-independence of the Sunyaev-Zel’dovich E...
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I briefly review our current understanding of dark matter and dark energy. The first part of this paper focusses on issues pertaining to dark matter including observational evidence for its existence, current constraints and the ‘abundance of substructure’ and ‘cuspy core’ issues which arise in CDM. I also briefly describe MOND. The second part of this review focusses on dark energy. In this pa...
متن کاملDark energy with dark spinors
Ever since the first observations that we are living in an accelerating universe, it has been asked what dark energy is. There are various explanations all of which with have various draw backs or inconsistencies. Here we show that using a dark spinor field it is possible to have an equation of state that crosses the phantom divide, becoming a dark phantom spinor which evolves into dark energy....
متن کاملDark Energy
Dark energy is one of the mysteries of modern science. It is unlike any known form of matter or energy and has been detected so far only by its gravitational effect of repulsion. Owing to its effects being discernible only at very very large distance scales, dark energy was only detected at the turn of the last century when technology had advanced enough to observe a greater part of the univers...
متن کاملDark Energy ∗
After some remarks about the history and the mystery of the vacuum energy I shall review the current evidence for a cosmologically significant nearly homogeneous exotic energy density with negative pressure (‘Dark Energy’). Special emphasis will be put on the recent polarization measurements by WMAP and their implications. I shall conclude by addressing the question: Do the current astronomical...
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ژورنال
عنوان ژورنال: Chinese Physics C
سال: 2020
ISSN: 1674-1137,2058-6132
DOI: 10.1088/1674-1137/aba5f9