Non-parametric reconstruction of the cosmological jerk parameter
نویسندگان
چکیده
Abstract The cosmological jerk parameter j is reconstructed in a non-parametric way from observational data independent of fiducial model. Cosmic Chronometer as well the Supernovae (the Pantheon compilation) are used for purpose. values found to be consistent with standard $$\Lambda $$ ? CDM model within $$2\sigma 2 ? confidence level. dependent sets like Baryon Acoustic Oscillation and CMB Shift also included thereafter, which does not significantly help improving or de-proving level favour CDM. deceleration q same sets. This find effective equation state datasets only. excluded some part evolution $$1\sigma 1 , but definitely domain ( $$0 \le z 2.36$$ 0 ? z 2.36 ) all reconstructions.
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ژورنال
عنوان ژورنال: European Physical Journal C
سال: 2021
ISSN: ['1434-6044', '1434-6052']
DOI: https://doi.org/10.1140/epjc/s10052-021-08830-5