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- W3208583588 abstract "Numerous extended sources around Galactic pulsars have shown significant $ensuremath{gamma}$-ray emission from GeV to TeV energies, revealing hundreds of TeV energy electrons scattering off of the underlying photon fields through inverse Compton scattering (ICS). HAWC TeV gamma-ray observations of few-degree extended emission around the pulsars Geminga and Monogem, and LAT GeV emission around Geminga, suggest that systems older than 100 kyr have multi-TeV ${e}^{ifmmodepmelsetextpmfi{}}$ propagating beyond the SNR-PWN system into the interstellar medium. Following the discovery of few $ensuremath{gamma}$-ray sources by HAWC at energies $mathrm{E}>100text{ }text{ }mathrm{TeV}$, we investigate the presence of an extended $ensuremath{gamma}$-ray emission in Fermi-LAT data around the three brightest sources detected by HAWC up to 100 TeV. We find an extended emission of ${ensuremath{theta}}_{68}=1.0{0}_{ensuremath{-}0.07}^{+0.05}text{ }text{ }mathrm{deg}$ around eHWC J1825-134 and ${ensuremath{theta}}_{68}=0.71ifmmodepmelsetextpmfi{}0.10text{ }text{ }mathrm{deg}$ eHWC $mathrm{J}1907+063$. The analysis with ICS templates on Fermi-LAT data point to diffusion coefficient values which are significantly lower than the average Galactic one. When studied along with HAWC data, the $ensuremath{gamma}$-ray Fermi-LAT data provide invaluable insight into the very high-energy electron and positron parent populations." @default.
- W3208583588 created "2021-11-08" @default.
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- W3208583588 date "2021-11-02" @default.
- W3208583588 modified "2023-10-15" @default.
- W3208583588 title "Investigating <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mi>γ</mml:mi></mml:math> -ray halos around three HAWC bright sources in <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mi>F</mml:mi><mml:mi>e</mml:mi><mml:mi>r</mml:mi><mml:mi>m</mml:mi><mml:mi>i</mml:mi></mml:math> -LAT data" @default.
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- W3208583588 doi "https://doi.org/10.1103/physrevd.104.103002" @default.
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