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Published in 2018 at "Nature Astronomy"
DOI: 10.1038/s41550-018-0531-z
Abstract: An anomalous emission component at energies of a few gigaelectronvolts and located towards the inner Galaxy is present in the Fermi-LAT data. At present, the two most promising explanations are the annihilation of dark matter…
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Keywords:
bulge;
stellar mass;
dark matter;
fermi lat ... See more keywords
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Published in 2018 at "Astronomy and Astrophysics"
DOI: 10.1051/0004-6361/201832786
Abstract: We study the $\gamma$-ray and broadband spectral energy distribution (SED) properties of a complete sample of 104 bright, radio-selected low-synchrotron peaked (LSP) blazars. Most of the sources have already been detected in the $\gamma$-ray band…
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Keywords:
gamma ray;
detections associations;
fermi lat;
complete sample ... See more keywords
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Published in 2018 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2018/10/010
Abstract: In the hierarchical paradigm of structure formation, galaxy clusters are the largest objects ever to virialize. They are thought to grow by accreting mass through large scale, strong virial shocks. Such a collisionless shock is…
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Keywords:
gamma ray;
detection virial;
fermi lat;
virial shocks ... See more keywords
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Published in 2019 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2019/04/048
Abstract: Dark matter annihilations have been fiercely restricted by the non-observation of excess events in indirect detection probes. Typically the interactions that dictate annihilation are also present in the dark matter-nucleon scattering cross section, also severely…
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Keywords:
telescope array;
cherenkov telescope;
matter;
dark matter ... See more keywords
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Published in 2019 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2019/08/023
Abstract: Centaurus B (Cen B) is one of the closest and brightest radio-loud galaxy in the southern sky. This radio galaxy, proposed as a plausible candidate for accelerating ultra-high-energy cosmic rays (UHECRs), is near the highest-energy…
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Keywords:
energy;
radio;
analysis;
fermi lat ... See more keywords
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Published in 2019 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2019/08/028
Abstract: Tucana-II (Tuc-II), a recently discovered and confirmed Ultra Faint Dwarf Spheroidal galaxy, has a high mass to light ratio as well as a large line-of-sight stellar velocity dispersion, thus making it an ideal candidate for…
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Keywords:
matter;
dark matter;
fermi lat;
analysis fermi ... See more keywords
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Published in 2018 at "Research in Astronomy and Astrophysics"
DOI: 10.1088/1674-4527/18/6/70
Abstract: 3C 207 is a lobe-dominant radio galaxy with one sided jet and the bright knots in kpc-Mpc scale were resolved in the radio, optical and X-ray bands. It was confirmed as a gamma-ray emitter with…
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Keywords:
gamma ray;
radio;
lobe dominant;
fermi lat ... See more keywords
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Published in 2017 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stx396
Abstract: Solar flares are regularly detected by the Large Area Telescope (LAT) on board the Fermi satellite, however no γ-ray emission from other stellar eruptions has ever been captured. The Swift detection in 2014 April of…
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Keywords:
ray flare;
fermi lat;
cvn;
binary star ... See more keywords
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Published in 2018 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/sty1037
Abstract: Previous long-term monitorings of the gamma-ray-loud X-ray binary LS I +61{\deg}303 have revealed the presence of a long-term modulation of ~4.5 years. After nine years of simultaneous monitoring of LS I +61{\deg}303 by the Owens…
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Keywords:
gamma ray;
term;
long term;
radio ... See more keywords
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Published in 2019 at "Physical Review D"
DOI: 10.1103/physrevd.100.123004
Abstract: The conversion between photons and axionlike particles (ALPs) in the Milky Way magnetic field could result in the detectable oscillation phenomena in $\ensuremath{\gamma}$-ray spectra of Galactic sources. In this work, the GeV (Fermi-LAT) and TeV…
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Keywords:
tev;
oscillation;
supernova remnants;
fermi lat ... See more keywords
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Published in 2020 at "Physical Review D"
DOI: 10.1103/physrevd.102.103010
Abstract: Cold dark matter (DM) models for structure formation predict that DM subhalos are present in the Galaxy. In the standard paradigm of DM as weakly interacting massive particle, subhalos are expected to shine in gamma…
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Keywords:
investigating detection;
fermi lat;
dark matter;
subhalos ... See more keywords