Fundamental cosmology from precision spectroscopy. II. Synergies with supernovae

A. C. O. Leite and C. J. A. P. Martins
Phys. Rev. D 91, 103519 – Published 18 May 2015

Abstract

In a previous work [Amendola et al., Phys. Rev. D 86, 063515 (2012)], principal component analysis based methods to constrain the dark energy equation of state using type Ia supernovae and other low redshift probes were extended to spectroscopic tests of the stability fundamental couplings, which can probe higher redshifts. Here we use them to quantify the gains in sensitivity obtained by combining spectroscopic measurements expected from ESPRESSO at the Very Large Telescope and the high-resolution ultrastable spectrograph for the E-ELT (European Extremely Large Telescope; known as ELT-HIRES) with future supernova surveys. In addition to simulated low and intermediate redshift supernova surveys, we assess the dark energy impact of high-redshift supernovae detected by the James Webb Space Telescope and characterized by the E-ELT or the Thirty Meter Telescope. Our results show that a detailed characterization of the dark energy properties beyond the acceleration phase (i.e., deep in the matter era) is viable and may reach as deep as redshift 4.

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  • Received 23 March 2015

DOI:https://doi.org/10.1103/PhysRevD.91.103519

© 2015 American Physical Society

Authors & Affiliations

A. C. O. Leite1,2,* and C. J. A. P. Martins1,3,†

  • 1Centro de Astrofísica da Universidade do Porto, Rua das Estrelas, 4150-762 Porto, Portugal
  • 2Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, 4150-007 Porto, Portugal
  • 3Instituto de Astrofísica e Ciências do Espaço, CAUP, Rua das Estrelas, 4150-762 Porto, Portugal

  • *Ana.Leite@astro.up.pt
  • Carlos.Martins@astro.up.pt

See Also

Fundamental cosmology from precision spectroscopy: Varying couplings

A. C. O. Leite, C. J. A. P. Martins, P. O. J. Pedrosa, and N. J. Nunes
Phys. Rev. D 90, 063519 (2014)

Dark energy constraints from ESPRESSO tests of the stability of fundamental couplings

A. C. O. Leite, C. J. A. P. Martins, P. Molaro, D. Corre, and S. Cristiani
Phys. Rev. D 94, 123512 (2016)

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Vol. 91, Iss. 10 — 15 May 2015

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