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  1. ; ; ; ; ; ; ; ; ; ; et al (, Journal of Cosmology and Astroparticle Physics)
    Abstract The Galactic Halo is a key target for indirect dark matter detection. The High Altitude Water Cherenkov (HAWC) observatory is a high-energy (∼300 GeV to >100 TeV) gamma-ray detector located in central Mexico. HAWC operates via the water Cherenkov technique and has both a wide field of view of ∼ 2 sr and a >95% duty cycle, making it ideal for analyses of highly extended sources. We made use of these properties of HAWC and a new background-estimation technique optimized for extended sources to probe a large region of the Galactic Halo for dark matter signals. With this approach, we set improved constraints on dark matter annihilation and decay between masses of 10 and 100 TeV. Due to the large spatial extent of the HAWC field of view, these constraints are robust against uncertainties in the Galactic dark matter spatial profile. 
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  2. ; ; ; ; ; ; ; ; ; ; et al (, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment)
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  3. ; ; ; ; ; ; ; ; ; ; et al (, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment)
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  4. ; ; ; ; ; ; ; ; ; ; et al (, The Astrophysical Journal)
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  5. ; ; ; ; ; ; ; ; ; ; et al (, The Astrophysical Journal)
    Abstract This paper reports on theγ-ray properties of the 2018 Galactic nova V392 Per, spanning photon energies ∼0.1 GeV–100 TeV by combining observations from the Fermi Gamma-ray Space Telescope and the HAWC Observatory. As one of the most rapidly evolvingγ-ray signals yet observed for a nova, GeVγ-rays with a power-law spectrum with an index Γ = 2.0 ± 0.1 were detected over 8 days following V392 Per’s optical maximum. HAWC observations constrain the TeVγ-ray signal during this time and also before and after. We observe no statistically significant evidence of TeVγ-ray emission from V392 Per, but present flux limits. Tests disfavor the extension of the Fermi Large Area Telescope spectrum to energies above 5 TeV by 2 standard deviations (95%) or more. We fit V392 Per’s GeVγ-rays with hadronic acceleration models, incorporating optical observations, and compare the calculations with HAWC limits. 
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  6. ; ; ; ; ; ; ; ; ; ; et al (, The Astrophysical Journal)
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  7. ; ; ; ; ; ; ; ; ; ; et al (, The Astrophysical Journal)
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  8. ; ; ; ; ; ; ; ; ; ; et al (, The Astrophysical Journal)
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  9. ; ; ; ; ; ; ; ; ; ; et al (, The Astrophysical Journal Letters)
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  10. ; ; ; ; ; ; ; ; ; ; et al (, Nature Astronomy)
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