CMB constraints on the thermal evolution with a decaying cosmological term

Riou Nakamura, E. P.Berni A. Thushari, Mikio Ikeda, Masa Aki Hashimoto

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We give new constraints on the cosmological evolution with a decaying cosmological term from the recent observations of temperature-redshift relations. In our study, the cosmological term is assumed to be a function of the scale factor that increases toward the early universe, and the photon temperature is different from that of the standard ΛCDM model. We can obtain the parameter region derived from the CMB temperature observation.

Original languageEnglish
Title of host publicationOrigin of Matter and Evolution of Galaxies 2011
Pages400-402
Number of pages3
DOIs
Publication statusPublished - Dec 1 2012
EventInternational Symposium on Origin of Matter and Evolutions of Galaxies 2011, OMEG 2011 - Wako, Japan
Duration: Nov 14 2011Nov 17 2011

Publication series

NameAIP Conference Proceedings
Volume1484
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

OtherInternational Symposium on Origin of Matter and Evolutions of Galaxies 2011, OMEG 2011
CountryJapan
CityWako
Period11/14/1111/17/11

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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    Nakamura, R., Thushari, E. P. B. A., Ikeda, M., & Hashimoto, M. A. (2012). CMB constraints on the thermal evolution with a decaying cosmological term. In Origin of Matter and Evolution of Galaxies 2011 (pp. 400-402). (AIP Conference Proceedings; Vol. 1484). https://doi.org/10.1063/1.4763433