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Search for Spectral Irregularities due to Photon-Axionlike-Particle Oscillations With the Fermi Large Area Telescope
Gabrijela Zaharijas, 2016, izvirni znanstveni članek

Najdeno v: osebi
Ključne besede: dark matter, gammarays theory, gamma rays experiment
Objavljeno: 26.04.2016; Ogledov: 2387; Prenosov: 0
.pdf Polno besedilo (801,77 KB)

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Constraints on the Galactic Dark Matter signal from the Fermi-LAT measurement of the diffuse gamma-ray emission
Gabrijela Zaharijas, 2012, objavljeni znanstveni prispevek na konferenci

Opis: We study diffuse gamma-ray emission at intermediate Galactic latitudes measured by the Fermi Large Area Telescope with the aim of searching for a signal from dark matter annihilation or decay. In the absence of a robust dark matter signal, constraints are presented. We set both, conservative dark matter limits requiring that the dark matter signal does not exceed the observed diffuse gamma-ray emission and limits derived based on modeling the foreground astrophysical diffuse emission. Uncertainties in several parameters which characterize conventional astrophysical emission are taken into account using a profile likelihood formalism. The resulting limits impact the range of particle masses over which dark matter thermal production in the early Universe is possible, and challenge the interpretation of the PAMELA/Fermi-LAT cosmic ray anomalies as annihilation of dark matter.
Najdeno v: osebi
Ključne besede: gamma rays, Galactic diffuse emission, dark matter serach
Objavljeno: 03.05.2016; Ogledov: 1821; Prenosov: 0
.pdf Polno besedilo (1,42 MB)

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Second Fermi-LAT Catalog of High-Energy Sources (2FHL)
Collaboration Fermi LAT, Gabrijela Zaharijas, 2015, zaključena znanstvena zbirka podatkov ali korpus

Najdeno v: osebi
Ključne besede: gamma-ray point sources, catalogs
Objavljeno: 06.05.2016; Ogledov: 2145; Prenosov: 0
.pdf Polno besedilo (2,26 MB)

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Extragalactic gamma-ray signal from dark matter annihilation
Gabrijela Zaharijas, E. Sefusatti, Pasquale D. Serpico, D. Theurel, M. Gustafsson, 2014, izvirni znanstveni članek

Najdeno v: osebi
Ključne besede: cosmology, dark matter, diffuse background, gamma-rays
Objavljeno: 09.05.2017; Ogledov: 1600; Prenosov: 67
URL Polno besedilo (0,00 KB)

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