Perspectives for studying the dark energy at z>2 with galaxy surveys

Autor:	Arkhipova, Natalia A., Pilipenko, Sergey V.
Rok vydání:	2017
Předmět:	Astrophysics - Cosmology and Nongalactic Astrophysics
Zdroj:	published in IJMPD's Volume No.25, Issue No.14 (2016)
Druh dokumentu:	Working Paper
DOI:	10.1142/S0218271816501091
Popis:	Now creation of big catalogs of galaxies for measurement of baryon acoustic oscillation (BAO) is actively conducted. Existing and planned in the near future surveys are directed on the range of red shifts of z.2. However, some popular models of dark energy (DE) give the maximum deviation from \Lambda CDM at z>2 therefore we investigated sensitivity of hypothetical high redshift surveys to the model of DE. We have found that with the increase of the number density of detected galaxies at z>2 high redshift observations may give better constraints of DE parameters. Comment: 13 pages, 6 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1702.04492 Zobrazit plný text záznamu View this record from Arxiv