INVESTIGADORES
SIMEONE Claudio Mauricio
artículos
Título:
Variation of the fine-structure constant: an update of statistical analyses with recent data
Autor/es:
L. KRAISELBURD, S. J. LANDAU, C. SIMEONE
Revista:
ASTRONOMY AND ASTROPHYSICS
Editorial:
EDP SCIENCES S A
Referencias:
Lugar: Paris; Año: 2013 vol. 557 p. 1 - 9
ISSN:
0004-6361
Resumen:
Aims. We analyze the consistency of different astronomical
data of the variation in the fine-structure constant obtained with Keck
and VLT.
Methods. We tested the consistency using the Student
test and confidence intervals. We splited the data sets into smaller
intervals and grouped them according to redshift and angular position.
Another statistical analysis is proposed that considers phenomenological
models for the variation in α.
Results. Results show consistency for the reduced intervals for each pair of data sets and suggests that the variation in α is significant at higher redshifts.
Conclusions. Even though the dipole model seems to be
the most accurate phenomenological model, the statistical analyses
indicate that the variation in α might be depending on both redshift and angular position.