English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/65789
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Title

Parametric invariance and the Pioneer anomaly

AuthorsRañada, Antonio F.; Tiemblo, Alfredo
Issue Date2012
PublisherNational Research Council Canada
CitationCanadian Journal of Physics 90: 931- 937 (2012)
AbstractIt is usually assumed that the t parameter in the equations of dynamics can be identified with the indication of the pointer of a clock. Things are not so simple, however. In fact, because the equations of motion can be written in terms of t but also in terms of t′ = f(t), f being any well-behaved function, any one of those infinite parametric times t′ is as good as the newtonian one to study classical dynamics in hamiltonian form. Here we show that, as a consequence of parametric invariance, one of the foundations of classical dynamics, the relation between the mathematical parametric time t in the equations of dynamics and the physical dynamical time σ that is measured with a particular clock (which is itself a dynamical system) requires the characterization of the clock that is used to achieve a complete treatment of dynamical systems. These two kinds of time, therefore, must be carefully distinguished. Furthermore, we show that not all the dynamical clock-times are necessarily equivalent and that the observational fingerprint of this nonequivalence has, curiously, the same form as that of the Pioneer anomaly. This suggests, therefore, that an acceleration to one another of the astronomical and the atomic times, t astr and t atom, can contribute to the total amount of the anomaly. © 2012 Published by NRC Research Press.
URIhttp://hdl.handle.net/10261/65789
DOI10.1139/p2012-086
Identifiersdoi: 10.1139/p2012-086
issn: 0008-4204
Appears in Collections:(CFMAC-IFF) Artículos
Files in This Item:
File Description SizeFormat 
Rañada.pdf289,95 kBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.