The time variation of the fine structure constant: A statistical analysis of astronomical data

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Aims. We analyze different data of the variation of the fine structure constant obtained with different methods to check their consistency.Methods. We test consistency using the modified student test and confidence intervals. We split the data sets into smaller intervals. A criterion for this select...

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Detalles Bibliográficos
Autores principales: Landau, S.J., Simeone, C.
Formato: JOUR
Materias:
Cosmology: miscellaneous
Cosmology: observations
Quasars: absorption lines
Financial data processing
Ketones
Astronomical data
Confidence intervals
Data sets
Fine structure constants
Mean values
Statistical analysis
Time variations
Testing
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00046361_v487_n3_p857_Landau
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
Descripción
Sumario:Aims. We analyze different data of the variation of the fine structure constant obtained with different methods to check their consistency.Methods. We test consistency using the modified student test and confidence intervals. We split the data sets into smaller intervals. A criterion for this selection is proposed.Results. Results show consistency for reduced intervals for each pair of data sets considered.Conclusions. Results are at variance with the ones obtained considering mean values over the whole interval. © 2008 ESO.

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