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Cosmological distances scale: Pt. 11. Extraordinary evidences and cosmically jerk problem
https://doi.org/10.32446/0368-1025it.2020-11-3-8
Abstract
Statistical verifi cation of the “extraordinary” evidence of “acceleration of the expansion of the Universe” due to the “cosmic push” at the redshift interval z=0,46+0,13 and at z=0,763 based on data on supernovae of type SN Ia, for which photometric distances were determined, was carried out. The transition from “deceleration” to “acceleration” is considered as a “breakdown” – a change in the structure and parameters of the model of the cosmological distance scale. It is shown that data from diff erent sources do not form a compositionally homogeneous set. The scale model's “misalignment” (discord) was revealed for z=0,44…0,48 from a sample of 10 SN Ia obtained in the interval z=0,30…0,97 by the High-Z Supernovae Search Team, and for z=0,763…0,828 from a sample of 42 SN Ia obtained in the interval by z=0,172…0,83 the Supernovae Cosmology Project group. The reason for these “discrepancies” may be an unbalanced and random distribution of SN Ia over the observed range of redshifts with a clearly expressed non-metric character of the scale
About the Author
S F. Levin
Moscow Institute for Expertise and Tests
Russian Federation
Russian Federation
Sergey F. Levin
Moscow
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Review
For citations:
Levin S.F. Cosmological distances scale: Pt. 11. Extraordinary evidences and cosmically jerk problem. Izmeritel`naya Tekhnika. 2020;(11):3-8. (In Russ.) https://doi.org/10.32446/0368-1025it.2020-11-3-8
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