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Abstract:

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.

Registro:

Documento: Artículo
Título:The time variation of the fine structure constant: A statistical analysis of astronomical data
Autor:Landau, S.J.; Simeone, C.
Filiación:Departamento de Física, FCEyN, Ciudad Universitaria - Pab. 1, 1428 Buenos Aires, Argentina
Carrera del Investigador Científico y Tecnológico, CONICET
Palabras clave:Cosmology: miscellaneous; Cosmology: observations; Quasars: absorption lines; Financial data processing; Ketones; Astronomical data; Confidence intervals; Cosmology: miscellaneous; Cosmology: observations; Data sets; Fine structure constants; Mean values; Quasars: absorption lines; Statistical analysis; Time variations; Testing
Año:2008
Volumen:487
Número:3
Página de inicio:857
Página de fin:863
DOI: http://dx.doi.org/10.1051/0004-6361:20079125
Título revista:Astronomy and Astrophysics
Título revista abreviado:Astron. Astrophys.
ISSN:00046361
CODEN:AAEJA
PDF:https://bibliotecadigital.exactas.uba.ar/download/paper/paper_00046361_v487_n3_p857_Landau.pdf
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00046361_v487_n3_p857_Landau

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Citas:

---------- APA ----------
Landau, S.J. & Simeone, C. (2008) . The time variation of the fine structure constant: A statistical analysis of astronomical data. Astronomy and Astrophysics, 487(3), 857-863.
http://dx.doi.org/10.1051/0004-6361:20079125
---------- CHICAGO ----------
Landau, S.J., Simeone, C. "The time variation of the fine structure constant: A statistical analysis of astronomical data" . Astronomy and Astrophysics 487, no. 3 (2008) : 857-863.
http://dx.doi.org/10.1051/0004-6361:20079125
---------- MLA ----------
Landau, S.J., Simeone, C. "The time variation of the fine structure constant: A statistical analysis of astronomical data" . Astronomy and Astrophysics, vol. 487, no. 3, 2008, pp. 857-863.
http://dx.doi.org/10.1051/0004-6361:20079125
---------- VANCOUVER ----------
Landau, S.J., Simeone, C. The time variation of the fine structure constant: A statistical analysis of astronomical data. Astron. Astrophys. 2008;487(3):857-863.
http://dx.doi.org/10.1051/0004-6361:20079125