Kinematical Conformal Cosmology : Fundamental Parameters from Astrophysical Observations
Author
Source
ISRN Astronomy and Astrophysics
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-24, 24 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-08-17
Country of Publication
Egypt
No. of Pages
24
Main Subjects
Abstract EN
We continue the presentation of an alternative cosmology based on conformal gravity, following our kinematical approach to the subject introduced in a recent paper.
In line with the assumptions of our model, which proposes a closed-form expression for the cosmic scale factor R(t), we revise the Hubble and deceleration parameters and introduce modified cosmological distances, analyzing in particular the case of the luminosity distance.
Our kinematical conformal cosmology is then able to explain the anomalous acceleration of the Pioneer spacecraft, as due to a local region of gravitational blueshift.
From the reported data of the Pioneer anomaly, we also compute the current value of our first fundamental parameter, γ0=1.94×10−28 cm−1, in line with the original estimate by P.
Mannheim of this quantity.
Our second fundamental parameter, δ0=3.83×10−5, interpreted as the current value of a cosmological time variable, is derived from a detailed fitting of type Ia supernovae “gold-silver” data, producing Hubble plots of the same quality of those obtained by standard cosmology, but without requiring any dark matter or dark energy contribution.
If further experiments will confirm the presence of an anomalous frequency blueshift in the outer region of the solar system, as described by our model, kinematical conformal cosmology might become a viable alternative to standard cosmological theories.
American Psychological Association (APA)
Varieschi, Gabriele U.. 2011. Kinematical Conformal Cosmology : Fundamental Parameters from Astrophysical Observations. ISRN Astronomy and Astrophysics،Vol. 2011, no. 2011, pp.1-24.
https://search.emarefa.net/detail/BIM-499580
Modern Language Association (MLA)
Varieschi, Gabriele U.. Kinematical Conformal Cosmology : Fundamental Parameters from Astrophysical Observations. ISRN Astronomy and Astrophysics No. 2011 (2011), pp.1-24.
https://search.emarefa.net/detail/BIM-499580
American Medical Association (AMA)
Varieschi, Gabriele U.. Kinematical Conformal Cosmology : Fundamental Parameters from Astrophysical Observations. ISRN Astronomy and Astrophysics. 2011. Vol. 2011, no. 2011, pp.1-24.
https://search.emarefa.net/detail/BIM-499580
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-499580