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Abstract:

We present the results of our analysis of cosmic-ray electrons using about 8×106 electron candidates detected in the first 12 months on-orbit by the Fermi Large Area Telescope. This work extends our previously published cosmic-ray electron spectrum down to 7 GeV, giving a spectral range of approximately 2.5 decades up to 1 TeV. We describe in detail the analysis and its validation using beam-test and on-orbit data. In addition, we describe the spectrum measured via a subset of events selected for the best energy resolution as a cross-check on the measurement using the full event sample. Our electron spectrum can be described with a power law E-3.08±0.05 with no prominent spectral features within systematic uncertainties. Within the limits of our uncertainties, we can accommodate a slight spectral hardening at around 100 GeV and a slight softening above 500 GeV. ©2010 The American Physical Society.

Registro:

Documento: Artículo
Título:Fermi LAT observations of cosmic-ray electrons from 7 GeV to 1 TeV
Autor:Ackermann, M. et al.
Este artículo contiene 195 autores, consultelos en el artículo en formato pdf.
Filiación: Este artículo contiene 195 autores con sus filiaciones, consultelas en el artículo en formato pdf.
Año:2010
Volumen:82
Número:9
DOI: http://dx.doi.org/10.1103/PhysRevD.82.092004
Título revista:Physical Review D - Particles, Fields, Gravitation and Cosmology
Título revista abreviado:Phys Rev D Part Fields Gravit Cosmol
ISSN:15507998
CODEN:PRVDA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15507998_v82_n9_p_Ackermann

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Citas:

---------- APA ----------
(2010) . Fermi LAT observations of cosmic-ray electrons from 7 GeV to 1 TeV. Physical Review D - Particles, Fields, Gravitation and Cosmology, 82(9).
http://dx.doi.org/10.1103/PhysRevD.82.092004
---------- CHICAGO ----------
Ackermann, M. "Fermi LAT observations of cosmic-ray electrons from 7 GeV to 1 TeV" . Physical Review D - Particles, Fields, Gravitation and Cosmology 82, no. 9 (2010).
http://dx.doi.org/10.1103/PhysRevD.82.092004
---------- MLA ----------
Ackermann, M. "Fermi LAT observations of cosmic-ray electrons from 7 GeV to 1 TeV" . Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 82, no. 9, 2010.
http://dx.doi.org/10.1103/PhysRevD.82.092004
---------- VANCOUVER ----------
Ackermann, M. Fermi LAT observations of cosmic-ray electrons from 7 GeV to 1 TeV. Phys Rev D Part Fields Gravit Cosmol. 2010;82(9).
http://dx.doi.org/10.1103/PhysRevD.82.092004