Search for Extended Sources in the Galactic Plane Using Six Years of $Fermi$-Large Area Telescope Pass 8 Data above 10 GeV
GUILLEMOT, Lucas
Laboratoire de Physique et Chimie de l'Environnement et de l'Espace [LPC2E]
Unité Scientifique de la Station de Nançay [USN]
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Laboratoire de Physique et Chimie de l'Environnement et de l'Espace [LPC2E]
Unité Scientifique de la Station de Nançay [USN]
Idioma
en
Article de revue
Este ítem está publicado en
Astrophys.J.. 2017, vol. 843, n° 2, p. 139
Resumen en inglés
The spatial extension of a γ-ray source is an essential ingredient to determine its spectral properties, as well as its potential multiwavelength counterpart. The capability to spatially resolve γ-ray sources is greatly ...Leer más >
The spatial extension of a γ-ray source is an essential ingredient to determine its spectral properties, as well as its potential multiwavelength counterpart. The capability to spatially resolve γ-ray sources is greatly improved by the newly delivered Fermi-Large Area Telescope (LAT) Pass 8 event-level analysis, which provides a greater acceptance and an improved point-spread function, two crucial factors for the detection of extended sources. Here, we present a complete search for extended sources located within 7° from the Galactic plane, using 6 yr of Fermi-LAT data above 10 GeV. We find 46 extended sources and provide their morphological and spectral characteristics. This constitutes the first catalog of hard Fermi-LAT extended sources, named the Fermi Galactic Extended Source Catalog, which allows a thorough study of the properties of the Galactic plane in the sub-TeV domain.< Leer menos
Palabras clave en inglés
catalogs
gamma rays: general
galaxy
gamma ray
spectral
acceptance
GLAST
gamma ray: energy spectrum
Orígen
Importado de HalCentros de investigación